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</pre><pre class="rust"><code><span class="doccomment">//! A bunch of (mostly read-only) queries on a Map.</span>

<span class="kw">use</span> <span class="ident">std::collections</span>::{<span class="ident">BTreeMap</span>, <span class="ident">BTreeSet</span>, <span class="ident">HashMap</span>, <span class="ident">HashSet</span>, <span class="ident">VecDeque</span>};

<span class="kw">use</span> <span class="ident">anyhow::Result</span>;
<span class="kw">use</span> <span class="ident">petgraph::graphmap</span>::{<span class="ident">DiGraphMap</span>, <span class="ident">UnGraphMap</span>};

<span class="kw">use</span> <span class="ident">abstio</span>::{<span class="ident">CityName</span>, <span class="ident">MapName</span>};
<span class="kw">use</span> <span class="ident">abstutil</span>::{<span class="ident">prettyprint_usize</span>, <span class="ident">serialized_size_bytes</span>, <span class="ident">MultiMap</span>, <span class="ident">Tags</span>, <span class="ident">Timer</span>};
<span class="kw">use</span> <span class="ident">geom</span>::{<span class="ident">Bounds</span>, <span class="ident">Distance</span>, <span class="ident">Duration</span>, <span class="ident">GPSBounds</span>, <span class="ident">Polygon</span>, <span class="ident">Pt2D</span>, <span class="ident">Ring</span>, <span class="ident">Time</span>};
<span class="kw">use</span> <span class="ident">raw_map</span>::{<span class="ident">DrivingSide</span>, <span class="ident">MapConfig</span>};

<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::raw</span>::{<span class="ident">OriginalRoad</span>, <span class="ident">RawMap</span>};
<span class="kw">use</span> <span class="kw">crate</span>::{
    <span class="ident">osm</span>, <span class="ident">Area</span>, <span class="ident">AreaID</span>, <span class="ident">AreaType</span>, <span class="ident">Building</span>, <span class="ident">BuildingID</span>, <span class="ident">BuildingType</span>, <span class="ident">CommonEndpoint</span>,
    <span class="ident">CompressedMovementID</span>, <span class="ident">ControlStopSign</span>, <span class="ident">ControlTrafficSignal</span>, <span class="ident">DirectedRoadID</span>, <span class="ident">Direction</span>,
    <span class="ident">Intersection</span>, <span class="ident">IntersectionID</span>, <span class="ident">Lane</span>, <span class="ident">LaneID</span>, <span class="ident">LaneType</span>, <span class="ident">Map</span>, <span class="ident">MapEdits</span>, <span class="ident">Movement</span>, <span class="ident">MovementID</span>,
    <span class="ident">OffstreetParking</span>, <span class="ident">ParkingLot</span>, <span class="ident">ParkingLotID</span>, <span class="ident">Path</span>, <span class="ident">PathConstraints</span>, <span class="ident">PathRequest</span>, <span class="ident">PathV2</span>,
    <span class="ident">Pathfinder</span>, <span class="ident">PathfinderCaching</span>, <span class="ident">Position</span>, <span class="ident">Road</span>, <span class="ident">RoadID</span>, <span class="ident">RoutingParams</span>, <span class="ident">TransitRoute</span>,
    <span class="ident">TransitRouteID</span>, <span class="ident">TransitStop</span>, <span class="ident">TransitStopID</span>, <span class="ident">Turn</span>, <span class="ident">TurnID</span>, <span class="ident">TurnType</span>, <span class="ident">Zone</span>,
};

<span class="kw">impl</span> <span class="ident">Map</span> {
    <span class="doccomment">/// Load a map from a local serialized Map or RawMap. Note this won&#39;t work on web. This should</span>
    <span class="doccomment">/// only be used by non-UI tools.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">load_synchronously</span>(<span class="ident">path</span>: <span class="ident">String</span>, <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>) -&gt; <span class="ident">Map</span> {
        <span class="kw">if</span> <span class="ident">path</span>.<span class="ident">contains</span>(<span class="string">&quot;/maps/&quot;</span>) {
            <span class="kw">match</span> <span class="ident">abstio::maybe_read_binary</span>(<span class="ident">path</span>.<span class="ident">clone</span>(), <span class="ident">timer</span>) {
                <span class="prelude-val">Ok</span>(<span class="ident">map</span>) =&gt; {
                    <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span>: <span class="ident">Map</span> <span class="op">=</span> <span class="ident">map</span>;
                    <span class="ident">map</span>.<span class="ident">map_loaded_directly</span>(<span class="ident">timer</span>);
                    <span class="kw">return</span> <span class="ident">map</span>;
                }
                <span class="prelude-val">Err</span>(<span class="ident">err</span>) =&gt; {
                    <span class="macro">error!</span>(<span class="string">&quot;\nError loading {}: {}\n&quot;</span>, <span class="ident">path</span>, <span class="ident">err</span>);
                    <span class="kw">if</span> <span class="ident">err</span>.<span class="ident">to_string</span>().<span class="ident">contains</span>(<span class="string">&quot;No such file&quot;</span>) {
                        <span class="macro">error!</span>(
                            <span class="string">&quot;{} is missing. You may need to do: cargo run --bin updater&quot;</span>,
                            <span class="ident">path</span>
                        );
                    } <span class="kw">else</span> {
                        <span class="macro">error!</span>(
                            <span class="string">&quot;{} is out-of-date. You may need to update your build (git pull) or \
                             download new data (cargo run --bin updater). If this is a custom \
                             map, you need to import it again.&quot;</span>,
                            <span class="ident">path</span>
                        );
                    }
                    <span class="macro">error!</span>(
                        <span class="string">&quot;Check https://a-b-street.github.io/docs/tech/dev/index.html and file an issue \
                         if you have trouble.&quot;</span>
                    );

                    <span class="ident">std::process::exit</span>(<span class="number">1</span>);
                }
            }
        }

        <span class="kw">let</span> <span class="ident">raw</span>: <span class="ident">RawMap</span> <span class="op">=</span> <span class="ident">abstio::read_binary</span>(<span class="ident">path</span>, <span class="ident">timer</span>);
        <span class="ident">Map::create_from_raw</span>(<span class="ident">raw</span>, <span class="ident"><span class="kw">crate</span>::RawToMapOptions::default</span>(), <span class="ident">timer</span>)
    }

    <span class="doccomment">/// After deserializing a map directly, call this after.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">map_loaded_directly</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>) {
        <span class="attribute">#![<span class="ident">allow</span>(<span class="ident">clippy::logic_bug</span>)]</span>
        <span class="comment">// For debugging map file sizes</span>

        <span class="self">self</span>.<span class="ident">edits</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">new_edits</span>();
        <span class="self">self</span>.<span class="ident">recalculate_road_to_buildings</span>();
        <span class="self">self</span>.<span class="ident">recalculate_all_movements</span>(<span class="ident">timer</span>);

        <span class="comment">// Enable to work on shrinking map file sizes. Never run this on the web though --</span>
        <span class="comment">// trying to serialize fast_paths in wasm melts the browser, because the usize&lt;-&gt;u32</span>
        <span class="comment">// translation there isn&#39;t meant to run on wasm.</span>
        <span class="kw">if</span> <span class="macro">cfg!</span>(<span class="ident">not</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">&quot;wasm32&quot;</span>)) <span class="op">&amp;&amp;</span> <span class="bool-val">false</span> {
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">costs</span> <span class="op">=</span> <span class="macro">vec!</span>[
                (
                    <span class="string">&quot;roads&quot;</span>,
                    <span class="self">self</span>.<span class="ident">roads</span>.<span class="ident">len</span>(),
                    <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">roads</span>),
                ),
                (
                    <span class="string">&quot;intersections&quot;</span>,
                    <span class="self">self</span>.<span class="ident">intersections</span>.<span class="ident">len</span>(),
                    <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">intersections</span>),
                ),
                (
                    <span class="string">&quot;buildings&quot;</span>,
                    <span class="self">self</span>.<span class="ident">buildings</span>.<span class="ident">len</span>(),
                    <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">buildings</span>),
                ),
                (
                    <span class="string">&quot;areas&quot;</span>,
                    <span class="self">self</span>.<span class="ident">areas</span>.<span class="ident">len</span>(),
                    <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">areas</span>),
                ),
                (
                    <span class="string">&quot;parking lots&quot;</span>,
                    <span class="self">self</span>.<span class="ident">parking_lots</span>.<span class="ident">len</span>(),
                    <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">parking_lots</span>),
                ),
                (
                    <span class="string">&quot;zones&quot;</span>,
                    <span class="self">self</span>.<span class="ident">zones</span>.<span class="ident">len</span>(),
                    <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">zones</span>),
                ),
                (<span class="string">&quot;pathfinder&quot;</span>, <span class="number">1</span>, <span class="ident">serialized_size_bytes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">pathfinder</span>)),
            ];
            <span class="ident">costs</span>.<span class="ident">sort_by_key</span>(<span class="op">|</span>(<span class="kw">_</span>, <span class="kw">_</span>, <span class="ident">bytes</span>)<span class="op">|</span> <span class="kw-2">*</span><span class="ident">bytes</span>);
            <span class="ident">costs</span>.<span class="ident">reverse</span>();

            <span class="macro">info!</span>(
                <span class="string">&quot;Total map size: {} bytes&quot;</span>,
                <span class="ident">prettyprint_usize</span>(<span class="ident">serialized_size_bytes</span>(<span class="self">self</span>))
            );
            <span class="kw">for</span> (<span class="ident">name</span>, <span class="ident">number</span>, <span class="ident">bytes</span>) <span class="kw">in</span> <span class="ident">costs</span> {
                <span class="macro">info!</span>(
                    <span class="string">&quot;- {} {}: {} bytes&quot;</span>,
                    <span class="ident">prettyprint_usize</span>(<span class="ident">number</span>),
                    <span class="ident">name</span>,
                    <span class="ident">prettyprint_usize</span>(<span class="ident">bytes</span>)
                );
            }
        }
    }

    <span class="doccomment">/// Just for temporary std::mem::replace tricks.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">blank</span>() -&gt; <span class="ident">Map</span> {
        <span class="ident">Map</span> {
            <span class="ident">roads</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">intersections</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">buildings</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">transit_stops</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">transit_routes</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">areas</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">parking_lots</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">zones</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">boundary_polygon</span>: <span class="ident">Ring::must_new</span>(<span class="macro">vec!</span>[
                <span class="ident">Pt2D::new</span>(<span class="number">0.0</span>, <span class="number">0.0</span>),
                <span class="ident">Pt2D::new</span>(<span class="number">1.0</span>, <span class="number">0.0</span>),
                <span class="ident">Pt2D::new</span>(<span class="number">1.0</span>, <span class="number">1.0</span>),
                <span class="ident">Pt2D::new</span>(<span class="number">0.0</span>, <span class="number">0.0</span>),
            ])
            .<span class="ident">into_polygon</span>(),
            <span class="ident">stop_signs</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">traffic_signals</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">gps_bounds</span>: <span class="ident">GPSBounds::new</span>(),
            <span class="ident">bounds</span>: <span class="ident">Bounds::new</span>(),
            <span class="ident">config</span>: <span class="ident">MapConfig</span> {
                <span class="ident">driving_side</span>: <span class="ident">DrivingSide::Right</span>,
                <span class="ident">bikes_can_use_bus_lanes</span>: <span class="bool-val">true</span>,
                <span class="ident">inferred_sidewalks</span>: <span class="bool-val">true</span>,
                <span class="ident">street_parking_spot_length</span>: <span class="ident">Distance::meters</span>(<span class="number">8.0</span>),
                <span class="ident">turn_on_red</span>: <span class="bool-val">true</span>,
            },
            <span class="ident">pathfinder</span>: <span class="ident">Pathfinder::empty</span>(),
            <span class="ident">pathfinder_dirty</span>: <span class="bool-val">false</span>,
            <span class="ident">routing_params</span>: <span class="ident">RoutingParams::default</span>(),
            <span class="ident">name</span>: <span class="ident">MapName::blank</span>(),
            <span class="ident">edits</span>: <span class="ident">MapEdits::new</span>(),
            <span class="ident">edits_generation</span>: <span class="number">0</span>,
            <span class="ident">road_to_buildings</span>: <span class="ident">MultiMap::new</span>(),
        }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_roads</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Road</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">roads</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_lanes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw">impl</span> <span class="ident">Iterator</span><span class="op">&lt;</span><span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="ident">Lane</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">roads</span>.<span class="ident">iter</span>().<span class="ident">flat_map</span>(<span class="op">|</span><span class="ident">r</span><span class="op">|</span> <span class="ident">r</span>.<span class="ident">lanes</span>.<span class="ident">iter</span>())
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_intersections</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Intersection</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">intersections</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_turns</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw">impl</span> <span class="ident">Iterator</span><span class="op">&lt;</span><span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">intersections</span>.<span class="ident">iter</span>().<span class="ident">flat_map</span>(<span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="ident">i</span>.<span class="ident">turns</span>.<span class="ident">iter</span>())
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_buildings</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Building</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">buildings</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_areas</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Area</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">areas</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_parking_lots</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">ParkingLot</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">parking_lots</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_zones</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Zone</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">zones</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_r</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">RoadID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Road</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">roads</span>.<span class="ident">get</span>(<span class="ident">id</span>.<span class="number">0</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_l</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">LaneID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Lane</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">maybe_get_r</span>(<span class="ident">id</span>.<span class="ident">road</span>)<span class="question-mark">?</span>.<span class="ident">lanes</span>.<span class="ident">get</span>(<span class="ident">id</span>.<span class="ident">offset</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_i</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Intersection</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">intersections</span>.<span class="ident">get</span>(<span class="ident">id</span>.<span class="number">0</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_t</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">TurnID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> {
        <span class="comment">// Looking up the intersection is fast. Linearly scanning through all of the turns to find</span>
        <span class="comment">// this one actually turns out to be fast too; thanks cache locality.</span>
        <span class="kw">for</span> <span class="ident">turn</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">intersections</span>[<span class="ident">id</span>.<span class="ident">parent</span>.<span class="number">0</span>].<span class="ident">turns</span> {
            <span class="kw">if</span> <span class="ident">turn</span>.<span class="ident">id</span> <span class="op">==</span> <span class="ident">id</span> {
                <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">turn</span>);
            }
        }
        <span class="prelude-val">None</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_b</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">BuildingID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Building</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">buildings</span>.<span class="ident">get</span>(<span class="ident">id</span>.<span class="number">0</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_pl</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">ParkingLotID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">ParkingLot</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">parking_lots</span>.<span class="ident">get</span>(<span class="ident">id</span>.<span class="number">0</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_a</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">AreaID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Area</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">areas</span>.<span class="ident">get</span>(<span class="ident">id</span>.<span class="number">0</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_ts</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">TransitStopID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">TransitStop</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">transit_stops</span>.<span class="ident">get</span>(<span class="kw-2">&amp;</span><span class="ident">id</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_stop_sign</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">ControlStopSign</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">stop_signs</span>.<span class="ident">get</span>(<span class="kw-2">&amp;</span><span class="ident">id</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_traffic_signal</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">ControlTrafficSignal</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">traffic_signals</span>.<span class="ident">get</span>(<span class="kw-2">&amp;</span><span class="ident">id</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">maybe_get_tr</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">route</span>: <span class="ident">TransitRouteID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">TransitRoute</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">transit_routes</span>.<span class="ident">get</span>(<span class="ident">route</span>.<span class="number">0</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_r</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">RoadID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Road</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">roads</span>[<span class="ident">id</span>.<span class="number">0</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_l</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">LaneID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Lane</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">roads</span>[<span class="ident">id</span>.<span class="ident">road</span>.<span class="number">0</span>].<span class="ident">lanes</span>[<span class="ident">id</span>.<span class="ident">offset</span>]
    }

    <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">mut_lane</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">id</span>: <span class="ident">LaneID</span>) -&gt; <span class="kw-2">&amp;mut</span> <span class="ident">Lane</span> {
        <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">roads</span>[<span class="ident">id</span>.<span class="ident">road</span>.<span class="number">0</span>].<span class="ident">lanes</span>[<span class="ident">id</span>.<span class="ident">offset</span>]
    }
    <span class="doccomment">/// Public for importer. Do not abuse!</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">mut_road</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">id</span>: <span class="ident">RoadID</span>) -&gt; <span class="kw-2">&amp;mut</span> <span class="ident">Road</span> {
        <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">roads</span>[<span class="ident">id</span>.<span class="number">0</span>]
    }
    <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">mut_turn</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">id</span>: <span class="ident">TurnID</span>) -&gt; <span class="kw-2">&amp;mut</span> <span class="ident">Turn</span> {
        <span class="kw">for</span> <span class="ident">turn</span> <span class="kw">in</span> <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">intersections</span>[<span class="ident">id</span>.<span class="ident">parent</span>.<span class="number">0</span>].<span class="ident">turns</span> {
            <span class="kw">if</span> <span class="ident">turn</span>.<span class="ident">id</span> <span class="op">==</span> <span class="ident">id</span> {
                <span class="kw">return</span> <span class="ident">turn</span>;
            }
        }
        <span class="macro">panic!</span>(<span class="string">&quot;Couldn&#39;t find {id}&quot;</span>);
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_i</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Intersection</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">intersections</span>[<span class="ident">id</span>.<span class="number">0</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_t</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">TurnID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Turn</span> {
        <span class="comment">// When pathfinding breaks, seeing this TurnID is useful.</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">turn</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">maybe_get_t</span>(<span class="ident">id</span>) {
            <span class="ident">turn</span>
        } <span class="kw">else</span> {
            <span class="macro">panic!</span>(<span class="string">&quot;Can&#39;t get_t({})&quot;</span>, <span class="ident">id</span>);
        }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_b</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">BuildingID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Building</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">buildings</span>[<span class="ident">id</span>.<span class="number">0</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_a</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">AreaID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Area</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">areas</span>[<span class="ident">id</span>.<span class="number">0</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_pl</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">ParkingLotID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">ParkingLot</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">parking_lots</span>[<span class="ident">id</span>.<span class="number">0</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_stop_sign</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">ControlStopSign</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">stop_signs</span>[<span class="kw-2">&amp;</span><span class="ident">id</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_traffic_signal</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">ControlTrafficSignal</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">traffic_signals</span>[<span class="kw-2">&amp;</span><span class="ident">id</span>]
    }

    <span class="comment">// All these helpers should take IDs and return objects.</span>

    <span class="doccomment">/// The turns may belong to two different intersections!</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_turns_from_lane</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">l</span>: <span class="ident">LaneID</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">lane</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_l</span>(<span class="ident">l</span>);
        <span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">lane</span>.<span class="ident">dst_i</span>)
            .<span class="ident">turns</span>
            .<span class="ident">iter</span>()
            <span class="comment">// Sidewalks are bidirectional, so include turns from the source intersection</span>
            .<span class="ident">chain</span>(
                <span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">lane</span>.<span class="ident">src_i</span>)
                    .<span class="ident">turns</span>
                    .<span class="ident">iter</span>()
                    <span class="comment">// And then don&#39;t yield them if this isn&#39;t a sidewalk</span>
                    .<span class="ident">take_while</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> <span class="ident">lane</span>.<span class="ident">is_walkable</span>()),
            )
            .<span class="ident">filter</span>(<span class="op">|</span><span class="ident">t</span><span class="op">|</span> <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">src</span> <span class="op">==</span> <span class="ident">l</span> <span class="op">|</span><span class="op">|</span> (<span class="ident">lane</span>.<span class="ident">is_walkable</span>() <span class="op">&amp;&amp;</span> <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">dst</span> <span class="op">==</span> <span class="ident">l</span>))
            .<span class="ident">collect</span>()
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_turns_to_lane</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">l</span>: <span class="ident">LaneID</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">lane</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_l</span>(<span class="ident">l</span>);

        <span class="comment">// Sidewalks/shoulders are bidirectional</span>
        <span class="kw">if</span> <span class="ident">lane</span>.<span class="ident">is_walkable</span>() {
            <span class="kw">return</span> <span class="self">self</span>.<span class="ident">get_turns_from_lane</span>(<span class="ident">l</span>);
        }

        <span class="kw">let</span> <span class="ident">turns</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> <span class="op">=</span> <span class="self">self</span>
            .<span class="ident">get_i</span>(<span class="ident">lane</span>.<span class="ident">src_i</span>)
            .<span class="ident">turns</span>
            .<span class="ident">iter</span>()
            .<span class="ident">filter</span>(<span class="op">|</span><span class="ident">t</span><span class="op">|</span> <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">dst</span> <span class="op">==</span> <span class="ident">l</span>)
            .<span class="ident">collect</span>();
        <span class="ident">turns</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_turn_between</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">from</span>: <span class="ident">LaneID</span>,
        <span class="ident">to</span>: <span class="ident">LaneID</span>,
        <span class="ident">parent</span>: <span class="ident">IntersectionID</span>,
    ) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">parent</span>)
            .<span class="ident">turns</span>
            .<span class="ident">iter</span>()
            .<span class="ident">find</span>(<span class="op">|</span><span class="ident">t</span><span class="op">|</span> <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">src</span> <span class="op">==</span> <span class="ident">from</span> <span class="op">&amp;&amp;</span> <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">dst</span> <span class="op">==</span> <span class="ident">to</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_next_turns_and_lanes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">from</span>: <span class="ident">LaneID</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="kw-2">&amp;</span><span class="ident">Turn</span>, <span class="kw-2">&amp;</span><span class="ident">Lane</span>)<span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">get_turns_from_lane</span>(<span class="ident">from</span>)
            .<span class="ident">into_iter</span>()
            .<span class="ident">map</span>(<span class="op">|</span><span class="ident">t</span><span class="op">|</span> {
                (
                    <span class="ident">t</span>,
                    <span class="self">self</span>.<span class="ident">get_l</span>(<span class="kw">if</span> <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">src</span> <span class="op">==</span> <span class="ident">from</span> { <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">dst</span> } <span class="kw">else</span> { <span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">src</span> }),
                )
            })
            .<span class="ident">collect</span>()
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_next_turns_and_lanes_for</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">from</span>: <span class="ident">LaneID</span>,
        <span class="ident">constraints</span>: <span class="ident">PathConstraints</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="kw-2">&amp;</span><span class="ident">Turn</span>, <span class="kw-2">&amp;</span><span class="ident">Lane</span>)<span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">get_next_turns_and_lanes</span>(<span class="ident">from</span>)
            .<span class="ident">into_iter</span>()
            .<span class="ident">filter</span>(<span class="op">|</span>(<span class="kw">_</span>, <span class="ident">l</span>)<span class="op">|</span> <span class="ident">constraints</span>.<span class="ident">can_use</span>(<span class="ident">l</span>, <span class="self">self</span>))
            .<span class="ident">collect</span>()
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_turns_for</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">from</span>: <span class="ident">LaneID</span>, <span class="ident">constraints</span>: <span class="ident">PathConstraints</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Turn</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">get_next_turns_and_lanes_for</span>(<span class="ident">from</span>, <span class="ident">constraints</span>)
            .<span class="ident">into_iter</span>()
            .<span class="ident">map</span>(<span class="op">|</span>(<span class="ident">t</span>, <span class="kw">_</span>)<span class="op">|</span> <span class="ident">t</span>)
            .<span class="ident">collect</span>()
    }

    <span class="doccomment">/// Find all movements from one road to another that&#39;re usable by someone.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_movements_for</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">from</span>: <span class="ident">DirectedRoadID</span>,
        <span class="ident">constraints</span>: <span class="ident">PathConstraints</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">MovementID</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span> <span class="op">=</span> <span class="ident">BTreeSet::new</span>();
        <span class="kw">for</span> <span class="ident">t</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">from</span>.<span class="ident">dst_i</span>(<span class="self">self</span>)).<span class="ident">turns</span> {
            <span class="kw">let</span> <span class="ident">src</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_l</span>(<span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">src</span>);
            <span class="kw">if</span> <span class="ident">src</span>.<span class="ident">get_directed_parent</span>() <span class="op">==</span> <span class="ident">from</span>
                <span class="op">&amp;&amp;</span> <span class="ident">constraints</span>.<span class="ident">can_use</span>(<span class="ident">src</span>, <span class="self">self</span>)
                <span class="op">&amp;&amp;</span> <span class="ident">constraints</span>.<span class="ident">can_use</span>(<span class="self">self</span>.<span class="ident">get_l</span>(<span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">dst</span>), <span class="self">self</span>)
            {
                <span class="ident">result</span>.<span class="ident">insert</span>(<span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">to_movement</span>(<span class="self">self</span>));
            }
        }
        <span class="comment">// TODO Sidewalks are bidirectional</span>
        <span class="macro">assert!</span>(<span class="ident">constraints</span> <span class="op">!</span><span class="op">=</span> <span class="ident">PathConstraints::Pedestrian</span>);
        <span class="ident">result</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>()
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_next_roads</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">from</span>: <span class="ident">RoadID</span>) -&gt; <span class="ident">BTreeSet</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">roads</span>: <span class="ident">BTreeSet</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeSet::new</span>();
        <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="ident">from</span>);
        <span class="kw">for</span> <span class="ident">id</span> <span class="kw">in</span> <span class="macro">vec!</span>[<span class="ident">r</span>.<span class="ident">src_i</span>, <span class="ident">r</span>.<span class="ident">dst_i</span>].<span class="ident">into_iter</span>() {
            <span class="ident">roads</span>.<span class="ident">extend</span>(<span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">id</span>).<span class="ident">roads</span>.<span class="ident">clone</span>());
        }
        <span class="ident">roads</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_parent</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">LaneID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Road</span> {
        <span class="self">self</span>.<span class="ident">get_r</span>(<span class="ident">id</span>.<span class="ident">road</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_gps_bounds</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">GPSBounds</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">gps_bounds</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_bounds</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Bounds</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">bounds</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_city_name</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">CityName</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">name</span>.<span class="ident">city</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_name</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">MapName</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">name</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_transit_stops</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">TransitStopID</span>, <span class="ident">TransitStop</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">transit_stops</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_ts</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">stop</span>: <span class="ident">TransitStopID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">TransitStop</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">transit_stops</span>[<span class="kw-2">&amp;</span><span class="ident">stop</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_tr</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">route</span>: <span class="ident">TransitRouteID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">TransitRoute</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">transit_routes</span>[<span class="ident">route</span>.<span class="number">0</span>]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_transit_routes</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">TransitRoute</span><span class="op">&gt;</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">transit_routes</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_transit_route</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">name</span>: <span class="kw-2">&amp;</span><span class="ident">str</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">TransitRoute</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">transit_routes</span>.<span class="ident">iter</span>().<span class="ident">find</span>(<span class="op">|</span><span class="ident">r</span><span class="op">|</span> <span class="ident">r</span>.<span class="ident">long_name</span> <span class="op">==</span> <span class="ident">name</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_routes_serving_stop</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">stop</span>: <span class="ident">TransitStopID</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">TransitRoute</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">routes</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">transit_routes</span> {
            <span class="kw">if</span> <span class="ident">r</span>.<span class="ident">stops</span>.<span class="ident">contains</span>(<span class="kw-2">&amp;</span><span class="ident">stop</span>) {
                <span class="ident">routes</span>.<span class="ident">push</span>(<span class="ident">r</span>);
            }
        }
        <span class="ident">routes</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">building_to_road</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">BuildingID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Road</span> {
        <span class="self">self</span>.<span class="ident">get_parent</span>(<span class="self">self</span>.<span class="ident">get_b</span>(<span class="ident">id</span>).<span class="ident">sidewalk</span>())
    }

    <span class="doccomment">/// This and all_outgoing_borders are expensive to constantly repeat</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_incoming_borders</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Intersection</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Intersection</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">intersections</span> {
            <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">is_incoming_border</span>() {
                <span class="ident">result</span>.<span class="ident">push</span>(<span class="ident">i</span>);
            }
        }
        <span class="ident">result</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_outgoing_borders</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Intersection</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Intersection</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">intersections</span> {
            <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">is_outgoing_border</span>() {
                <span class="ident">result</span>.<span class="ident">push</span>(<span class="ident">i</span>);
            }
        }
        <span class="ident">result</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">save</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) {
        <span class="macro">assert!</span>(<span class="self">self</span>.<span class="ident">edits</span>.<span class="ident">edits_name</span>.<span class="ident">starts_with</span>(<span class="string">&quot;Untitled Proposal&quot;</span>));
        <span class="macro">assert!</span>(<span class="self">self</span>.<span class="ident">edits</span>.<span class="ident">commands</span>.<span class="ident">is_empty</span>());
        <span class="macro">assert!</span>(<span class="op">!</span><span class="self">self</span>.<span class="ident">pathfinder_dirty</span>);
        <span class="ident">abstio::write_binary</span>(<span class="self">self</span>.<span class="ident">name</span>.<span class="ident">path</span>(), <span class="self">self</span>);
    }

    <span class="doccomment">/// Cars trying to park near this building should head for the driving lane returned here, then</span>
    <span class="doccomment">/// start their search. Some parking lanes are connected to driving lanes that&#39;re &quot;parking</span>
    <span class="doccomment">/// blackholes&quot; -- if there are no free spots on that lane, then the roads force cars to a</span>
    <span class="doccomment">/// border.</span>
    <span class="comment">// TODO Making driving_connection do this.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">find_driving_lane_near_building</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">b</span>: <span class="ident">BuildingID</span>) -&gt; <span class="ident">LaneID</span> {
        <span class="kw">let</span> <span class="ident">sidewalk</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_b</span>(<span class="ident">b</span>).<span class="ident">sidewalk</span>();
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">l</span>) <span class="op">=</span> <span class="self">self</span>
            .<span class="ident">get_parent</span>(<span class="ident">sidewalk</span>)
            .<span class="ident">find_closest_lane</span>(<span class="ident">sidewalk</span>, <span class="op">|</span><span class="ident">l</span><span class="op">|</span> <span class="ident">PathConstraints::Car</span>.<span class="ident">can_use</span>(<span class="ident">l</span>, <span class="self">self</span>))
        {
            <span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">get_l</span>(<span class="ident">l</span>).<span class="ident">driving_blackhole</span> {
                <span class="kw">return</span> <span class="ident">l</span>;
            }
        }

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">roads_queue</span>: <span class="ident">VecDeque</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">VecDeque::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">visited</span>: <span class="ident">HashSet</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">HashSet::new</span>();
        {
            <span class="kw">let</span> <span class="ident">start</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">building_to_road</span>(<span class="ident">b</span>).<span class="ident">id</span>;
            <span class="ident">roads_queue</span>.<span class="ident">push_back</span>(<span class="ident">start</span>);
            <span class="ident">visited</span>.<span class="ident">insert</span>(<span class="ident">start</span>);
        }

        <span class="kw">loop</span> {
            <span class="kw">if</span> <span class="ident">roads_queue</span>.<span class="ident">is_empty</span>() {
                <span class="macro">panic!</span>(
                    <span class="string">&quot;Giving up looking for a driving lane near {}, searched {} roads: {:?}&quot;</span>,
                    <span class="ident">b</span>,
                    <span class="ident">visited</span>.<span class="ident">len</span>(),
                    <span class="ident">visited</span>
                );
            }
            <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="ident">roads_queue</span>.<span class="ident">pop_front</span>().<span class="ident">unwrap</span>());

            <span class="kw">for</span> (<span class="ident">l</span>, <span class="ident">lt</span>) <span class="kw">in</span> <span class="ident">r</span>
                .<span class="ident">children_forwards</span>()
                .<span class="ident">into_iter</span>()
                .<span class="ident">chain</span>(<span class="ident">r</span>.<span class="ident">children_backwards</span>().<span class="ident">into_iter</span>())
            {
                <span class="kw">if</span> <span class="ident">lt</span> <span class="op">==</span> <span class="ident">LaneType::Driving</span> <span class="op">&amp;&amp;</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">get_l</span>(<span class="ident">l</span>).<span class="ident">driving_blackhole</span> {
                    <span class="kw">return</span> <span class="ident">l</span>;
                }
            }

            <span class="kw">for</span> <span class="ident">next_r</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">get_next_roads</span>(<span class="ident">r</span>.<span class="ident">id</span>).<span class="ident">into_iter</span>() {
                <span class="kw">if</span> <span class="op">!</span><span class="ident">visited</span>.<span class="ident">contains</span>(<span class="kw-2">&amp;</span><span class="ident">next_r</span>) {
                    <span class="ident">roads_queue</span>.<span class="ident">push_back</span>(<span class="ident">next_r</span>);
                    <span class="ident">visited</span>.<span class="ident">insert</span>(<span class="ident">next_r</span>);
                }
            }
        }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_boundary_polygon</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Polygon</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">boundary_polygon</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_pathfinder</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">Pathfinder</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">pathfinder</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">pathfind</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">req</span>: <span class="ident">PathRequest</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">Path</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">pathfind_v2</span>(<span class="ident">req</span>)<span class="question-mark">?</span>.<span class="ident">into_v1</span>(<span class="self">self</span>)
    }
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">pathfind_with_params</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">req</span>: <span class="ident">PathRequest</span>,
        <span class="ident">params</span>: <span class="kw-2">&amp;</span><span class="ident">RoutingParams</span>,
        <span class="ident">cache_custom</span>: <span class="ident">PathfinderCaching</span>,
    ) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">Path</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">pathfind_v2_with_params</span>(<span class="ident">req</span>, <span class="ident">params</span>, <span class="ident">cache_custom</span>)<span class="question-mark">?</span>
            .<span class="ident">into_v1</span>(<span class="self">self</span>)
    }
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">pathfind_v2</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">req</span>: <span class="ident">PathRequest</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">PathV2</span><span class="op">&gt;</span> {
        <span class="macro">assert!</span>(<span class="op">!</span><span class="self">self</span>.<span class="ident">pathfinder_dirty</span>);
        <span class="self">self</span>.<span class="ident">pathfinder</span>
            .<span class="ident">pathfind</span>(<span class="ident">req</span>.<span class="ident">clone</span>(), <span class="self">self</span>)
            .<span class="ident">ok_or_else</span>(<span class="op">|</span><span class="op">|</span> <span class="macro">anyhow!</span>(<span class="string">&quot;can&#39;t fulfill {}&quot;</span>, <span class="ident">req</span>))
    }
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">pathfind_v2_with_params</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">req</span>: <span class="ident">PathRequest</span>,
        <span class="ident">params</span>: <span class="kw-2">&amp;</span><span class="ident">RoutingParams</span>,
        <span class="ident">cache_custom</span>: <span class="ident">PathfinderCaching</span>,
    ) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">PathV2</span><span class="op">&gt;</span> {
        <span class="macro">assert!</span>(<span class="op">!</span><span class="self">self</span>.<span class="ident">pathfinder_dirty</span>);
        <span class="self">self</span>.<span class="ident">pathfinder</span>
            .<span class="ident">pathfind_with_params</span>(<span class="ident">req</span>.<span class="ident">clone</span>(), <span class="ident">params</span>, <span class="ident">cache_custom</span>, <span class="self">self</span>)
            .<span class="ident">ok_or_else</span>(<span class="op">|</span><span class="op">|</span> <span class="macro">anyhow!</span>(<span class="string">&quot;can&#39;t fulfill {}&quot;</span>, <span class="ident">req</span>))
    }
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">should_use_transit</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">start</span>: <span class="ident">Position</span>,
        <span class="ident">end</span>: <span class="ident">Position</span>,
    ) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span>(<span class="ident">TransitStopID</span>, <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">TransitStopID</span><span class="op">&gt;</span>, <span class="ident">TransitRouteID</span>)<span class="op">&gt;</span> {
        <span class="macro">assert!</span>(<span class="op">!</span><span class="self">self</span>.<span class="ident">pathfinder_dirty</span>);
        <span class="self">self</span>.<span class="ident">pathfinder</span>.<span class="ident">should_use_transit</span>(<span class="self">self</span>, <span class="ident">start</span>, <span class="ident">end</span>)
    }

    <span class="doccomment">/// Return the cost of a single path, and also a mapping from every directed road to the cost</span>
    <span class="doccomment">/// of getting there from the same start. This can be used to understand why an alternative</span>
    <span class="doccomment">/// route wasn&#39;t chosen.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_costs_from</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">req</span>: <span class="ident">PathRequest</span>,
    ) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span>(<span class="ident">Duration</span>, <span class="ident">HashMap</span><span class="op">&lt;</span><span class="ident">DirectedRoadID</span>, <span class="ident">Duration</span><span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="macro">assert!</span>(<span class="op">!</span><span class="self">self</span>.<span class="ident">pathfinder_dirty</span>);
        <span class="self">self</span>.<span class="ident">pathfinder</span>.<span class="ident">all_costs_from</span>(<span class="ident">req</span>, <span class="self">self</span>)
    }

    <span class="doccomment">/// None for SharedSidewalkCorners and turns not belonging to traffic signals</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_movement_for_traffic_signal</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">t</span>: <span class="ident">TurnID</span>,
    ) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span>(<span class="ident">MovementID</span>, <span class="ident">CompressedMovementID</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">i</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">t</span>.<span class="ident">parent</span>);
        <span class="kw">if</span> <span class="op">!</span><span class="ident">i</span>.<span class="ident">is_traffic_signal</span>() <span class="op">|</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">get_t</span>(<span class="ident">t</span>).<span class="ident">turn_type</span> <span class="op">==</span> <span class="ident">TurnType::SharedSidewalkCorner</span> {
            <span class="kw">return</span> <span class="prelude-val">None</span>;
        }
        <span class="prelude-val">Some</span>(<span class="ident">i</span>.<span class="ident">turn_to_movement</span>(<span class="ident">t</span>))
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">find_r_by_osm_id</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">OriginalRoad</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> {
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_roads</span>() {
            <span class="kw">if</span> <span class="ident">r</span>.<span class="ident">orig_id</span> <span class="op">==</span> <span class="ident">id</span> {
                <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">r</span>.<span class="ident">id</span>);
            }
        }
        <span class="macro">bail!</span>(<span class="string">&quot;Can&#39;t find {}&quot;</span>, <span class="ident">id</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">find_i_by_osm_id</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">osm::NodeID</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">IntersectionID</span><span class="op">&gt;</span> {
        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_intersections</span>() {
            <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">orig_id</span> <span class="op">==</span> <span class="ident">id</span> {
                <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">i</span>.<span class="ident">id</span>);
            }
        }
        <span class="macro">bail!</span>(<span class="string">&quot;Can&#39;t find {}&quot;</span>, <span class="ident">id</span>)
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">find_b_by_osm_id</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">osm::OsmID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">BuildingID</span><span class="op">&gt;</span> {
        <span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_buildings</span>() {
            <span class="kw">if</span> <span class="ident">b</span>.<span class="ident">orig_id</span> <span class="op">==</span> <span class="ident">id</span> {
                <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">b</span>.<span class="ident">id</span>);
            }
        }
        <span class="prelude-val">None</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">find_tr_by_gtfs</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">gtfs_id</span>: <span class="kw-2">&amp;</span><span class="ident">str</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">TransitRouteID</span><span class="op">&gt;</span> {
        <span class="kw">for</span> <span class="ident">tr</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_transit_routes</span>() {
            <span class="kw">if</span> <span class="ident">tr</span>.<span class="ident">gtfs_id</span> <span class="op">==</span> <span class="ident">gtfs_id</span> {
                <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">tr</span>.<span class="ident">id</span>);
            }
        }
        <span class="prelude-val">None</span>
    }

    <span class="comment">// TODO Sort of a temporary hack</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hack_override_offstreet_spots</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">spots_per_bldg</span>: <span class="ident">usize</span>) {
        <span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">buildings</span> {
            <span class="kw">if</span> <span class="kw">let</span> <span class="ident">OffstreetParking::Private</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">num_spots</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">b</span>.<span class="ident">parking</span> {
                <span class="kw-2">*</span><span class="ident">num_spots</span> <span class="op">=</span> <span class="ident">spots_per_bldg</span>;
            }
        }
    }
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hack_override_offstreet_spots_individ</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">b</span>: <span class="ident">BuildingID</span>, <span class="ident">spots</span>: <span class="ident">usize</span>) {
        <span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">buildings</span>[<span class="ident">b</span>.<span class="number">0</span>];
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">OffstreetParking::Private</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">num_spots</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">b</span>.<span class="ident">parking</span> {
            <span class="kw-2">*</span><span class="ident">num_spots</span> <span class="op">=</span> <span class="ident">spots</span>;
        }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hack_override_bldg_type</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">b</span>: <span class="ident">BuildingID</span>, <span class="ident">bldg_type</span>: <span class="ident">BuildingType</span>) {
        <span class="self">self</span>.<span class="ident">buildings</span>[<span class="ident">b</span>.<span class="number">0</span>].<span class="ident">bldg_type</span> <span class="op">=</span> <span class="ident">bldg_type</span>;
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hack_override_orig_spawn_times</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">br</span>: <span class="ident">TransitRouteID</span>, <span class="ident">times</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Time</span><span class="op">&gt;</span>) {
        <span class="self">self</span>.<span class="ident">transit_routes</span>[<span class="ident">br</span>.<span class="number">0</span>].<span class="ident">orig_spawn_times</span> <span class="op">=</span> <span class="ident">times</span>.<span class="ident">clone</span>();
        <span class="self">self</span>.<span class="ident">transit_routes</span>[<span class="ident">br</span>.<span class="number">0</span>].<span class="ident">spawn_times</span> <span class="op">=</span> <span class="ident">times</span>;
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hack_add_area</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">area_type</span>: <span class="ident">AreaType</span>, <span class="ident">polygon</span>: <span class="ident">Polygon</span>, <span class="ident">osm_tags</span>: <span class="ident">Tags</span>) {
        <span class="self">self</span>.<span class="ident">areas</span>.<span class="ident">push</span>(<span class="ident">Area</span> {
            <span class="ident">id</span>: <span class="ident">AreaID</span>(<span class="self">self</span>.<span class="ident">areas</span>.<span class="ident">len</span>()),
            <span class="ident">area_type</span>,
            <span class="ident">polygon</span>,
            <span class="ident">osm_tags</span>,
            <span class="ident">osm_id</span>: <span class="prelude-val">None</span>,
        });
    }

    <span class="doccomment">/// Normally after applying edits, you must call `recalculate_pathfinding_after_edits`.</span>
    <span class="doccomment">/// Alternatively, you can keep the old pathfinder exactly as it is. Use with caution -- the</span>
    <span class="doccomment">/// pathfinder and the map may be out-of-sync in arbitrary ways.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">keep_pathfinder_despite_edits</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>) {
        <span class="self">self</span>.<span class="ident">pathfinder_dirty</span> <span class="op">=</span> <span class="bool-val">false</span>;
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_languages</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">BTreeSet</span><span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">languages</span> <span class="op">=</span> <span class="ident">BTreeSet::new</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_roads</span>() {
            <span class="kw">for</span> <span class="ident">key</span> <span class="kw">in</span> <span class="ident">r</span>.<span class="ident">osm_tags</span>.<span class="ident">inner</span>().<span class="ident">keys</span>() {
                <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">x</span>) <span class="op">=</span> <span class="ident">key</span>.<span class="ident">strip_prefix</span>(<span class="string">&quot;name:&quot;</span>) {
                    <span class="ident">languages</span>.<span class="ident">insert</span>(<span class="ident">x</span>.<span class="ident">to_string</span>());
                }
            }
        }
        <span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_buildings</span>() {
            <span class="kw">for</span> <span class="ident">a</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">b</span>.<span class="ident">amenities</span> {
                <span class="kw">for</span> <span class="ident">lang</span> <span class="kw">in</span> <span class="ident">a</span>.<span class="ident">names</span>.<span class="ident">languages</span>() {
                    <span class="ident">languages</span>.<span class="ident">insert</span>(<span class="ident">lang</span>.<span class="ident">to_string</span>());
                }
            }
        }
        <span class="ident">languages</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_config</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">MapConfig</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">config</span>
    }

    <span class="doccomment">/// Simple search along undirected roads. Expresses the result as a sequence of roads and a</span>
    <span class="doccomment">/// sequence of intersections.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">simple_path_btwn</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">i1</span>: <span class="ident">IntersectionID</span>,
        <span class="ident">i2</span>: <span class="ident">IntersectionID</span>,
    ) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span>(<span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span>, <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">IntersectionID</span><span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">graph</span>: <span class="ident">UnGraphMap</span><span class="op">&lt;</span><span class="ident">IntersectionID</span>, <span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">UnGraphMap::new</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_roads</span>() {
            <span class="kw">if</span> <span class="op">!</span><span class="ident">r</span>.<span class="ident">is_light_rail</span>() {
                <span class="ident">graph</span>.<span class="ident">add_edge</span>(<span class="ident">r</span>.<span class="ident">src_i</span>, <span class="ident">r</span>.<span class="ident">dst_i</span>, <span class="ident">r</span>.<span class="ident">id</span>);
            }
        }
        <span class="kw">let</span> (<span class="kw">_</span>, <span class="ident">path</span>) <span class="op">=</span> <span class="ident">petgraph::algo::astar</span>(
            <span class="kw-2">&amp;</span><span class="ident">graph</span>,
            <span class="ident">i1</span>,
            <span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="ident">i</span> <span class="op">==</span> <span class="ident">i2</span>,
            <span class="op">|</span>(<span class="kw">_</span>, <span class="kw">_</span>, <span class="ident">r</span>)<span class="op">|</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="kw-2">*</span><span class="ident">r</span>).<span class="ident">length</span>(),
            <span class="op">|</span><span class="kw">_</span><span class="op">|</span> <span class="ident">Distance::ZERO</span>,
        )<span class="question-mark">?</span>;
        <span class="kw">let</span> <span class="ident">roads</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">path</span>
            .<span class="ident">windows</span>(<span class="number">2</span>)
            .<span class="ident">map</span>(<span class="op">|</span><span class="ident">pair</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">graph</span>.<span class="ident">edge_weight</span>(<span class="ident">pair</span>[<span class="number">0</span>], <span class="ident">pair</span>[<span class="number">1</span>]).<span class="ident">unwrap</span>())
            .<span class="ident">collect</span>();
        <span class="prelude-val">Some</span>((<span class="ident">roads</span>, <span class="ident">path</span>))
    }

    <span class="doccomment">/// Simple search along directed roads, weighted by distance. Expresses the result as a</span>
    <span class="doccomment">/// sequence of roads and a sequence of intersections.</span>
    <span class="doccomment">///</span>
    <span class="doccomment">/// Unlike the main pathfinding methods, this starts and ends at intersections. The first and</span>
    <span class="doccomment">/// last step can be on any road connected to the intersection.</span>
    <span class="comment">// TODO Remove simple_path_btwn in favor of this one?</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">simple_path_btwn_v2</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">i1</span>: <span class="ident">IntersectionID</span>,
        <span class="ident">i2</span>: <span class="ident">IntersectionID</span>,
        <span class="ident">constraints</span>: <span class="ident">PathConstraints</span>,
    ) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span>(<span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span>, <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">IntersectionID</span><span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">graph</span>: <span class="ident">DiGraphMap</span><span class="op">&lt;</span><span class="ident">IntersectionID</span>, <span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">DiGraphMap::new</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_roads</span>() {
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">fwd</span> <span class="op">=</span> <span class="bool-val">false</span>;
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">back</span> <span class="op">=</span> <span class="bool-val">false</span>;
            <span class="kw">for</span> <span class="ident">lane</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">r</span>.<span class="ident">lanes</span> {
                <span class="kw">if</span> <span class="ident">constraints</span>.<span class="ident">can_use</span>(<span class="ident">lane</span>, <span class="self">self</span>) {
                    <span class="kw">if</span> <span class="ident">lane</span>.<span class="ident">dir</span> <span class="op">==</span> <span class="ident">Direction::Fwd</span> {
                        <span class="ident">fwd</span> <span class="op">=</span> <span class="bool-val">true</span>;
                    } <span class="kw">else</span> {
                        <span class="ident">back</span> <span class="op">=</span> <span class="bool-val">true</span>;
                    }
                }
            }
            <span class="kw">if</span> <span class="ident">fwd</span> {
                <span class="ident">graph</span>.<span class="ident">add_edge</span>(<span class="ident">r</span>.<span class="ident">src_i</span>, <span class="ident">r</span>.<span class="ident">dst_i</span>, <span class="ident">r</span>.<span class="ident">id</span>);
            }
            <span class="kw">if</span> <span class="ident">back</span> {
                <span class="ident">graph</span>.<span class="ident">add_edge</span>(<span class="ident">r</span>.<span class="ident">dst_i</span>, <span class="ident">r</span>.<span class="ident">src_i</span>, <span class="ident">r</span>.<span class="ident">id</span>);
            }
        }
        <span class="kw">let</span> (<span class="kw">_</span>, <span class="ident">path</span>) <span class="op">=</span> <span class="ident">petgraph::algo::astar</span>(
            <span class="kw-2">&amp;</span><span class="ident">graph</span>,
            <span class="ident">i1</span>,
            <span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="ident">i</span> <span class="op">==</span> <span class="ident">i2</span>,
            <span class="op">|</span>(<span class="kw">_</span>, <span class="kw">_</span>, <span class="ident">r</span>)<span class="op">|</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="kw-2">*</span><span class="ident">r</span>).<span class="ident">length</span>(),
            <span class="op">|</span><span class="kw">_</span><span class="op">|</span> <span class="ident">Distance::ZERO</span>,
        )<span class="question-mark">?</span>;
        <span class="kw">let</span> <span class="ident">roads</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">path</span>
            .<span class="ident">windows</span>(<span class="number">2</span>)
            .<span class="ident">map</span>(<span class="op">|</span><span class="ident">pair</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">graph</span>.<span class="ident">edge_weight</span>(<span class="ident">pair</span>[<span class="number">0</span>], <span class="ident">pair</span>[<span class="number">1</span>]).<span class="ident">unwrap</span>())
            .<span class="ident">collect</span>();
        <span class="prelude-val">Some</span>((<span class="ident">roads</span>, <span class="ident">path</span>))
    }

    <span class="doccomment">/// Returns the routing params baked into the map.</span>
    <span class="comment">// Depending how this works out, we might require everybody to explicitly plumb routing params,</span>
    <span class="comment">// in which case it should be easy to look for all places calling this.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">routing_params</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">RoutingParams</span> {
        <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">routing_params</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">road_to_buildings</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">r</span>: <span class="ident">RoadID</span>) -&gt; <span class="kw-2">&amp;</span><span class="ident">BTreeSet</span><span class="op">&lt;</span><span class="ident">BuildingID</span><span class="op">&gt;</span> {
        <span class="self">self</span>.<span class="ident">road_to_buildings</span>.<span class="ident">get</span>(<span class="ident">r</span>)
    }

    <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">recalculate_road_to_buildings</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>) {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">mapping</span> <span class="op">=</span> <span class="ident">MultiMap::new</span>();
        <span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">all_buildings</span>() {
            <span class="ident">mapping</span>.<span class="ident">insert</span>(<span class="ident">b</span>.<span class="ident">sidewalk_pos</span>.<span class="ident">lane</span>().<span class="ident">road</span>, <span class="ident">b</span>.<span class="ident">id</span>);
        }
        <span class="self">self</span>.<span class="ident">road_to_buildings</span> <span class="op">=</span> <span class="ident">mapping</span>;
    }

    <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">recalculate_all_movements</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>) {
        <span class="kw">let</span> <span class="ident">movements</span> <span class="op">=</span> <span class="ident">timer</span>.<span class="ident">parallelize</span>(
            <span class="string">&quot;generate movements&quot;</span>,
            <span class="self">self</span>.<span class="ident">intersections</span>.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="ident">i</span>.<span class="ident">id</span>).<span class="ident">collect</span>(),
            <span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="ident">Movement::for_i</span>(<span class="ident">i</span>, <span class="self">self</span>),
        );
        <span class="kw">for</span> (<span class="ident">i</span>, <span class="ident">movements</span>) <span class="kw">in</span> <span class="self">self</span>.<span class="ident">intersections</span>.<span class="ident">iter_mut</span>().<span class="ident">zip</span>(<span class="ident">movements</span>.<span class="ident">into_iter</span>()) {
            <span class="ident">i</span>.<span class="ident">movements</span> <span class="op">=</span> <span class="ident">movements</span>;
        }
    }

    <span class="doccomment">/// Finds the road directly connecting two intersections.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">find_road_between</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">i1</span>: <span class="ident">IntersectionID</span>, <span class="ident">i2</span>: <span class="ident">IntersectionID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span> {
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">i1</span>).<span class="ident">roads</span> {
            <span class="kw">let</span> <span class="ident">road</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="kw-2">*</span><span class="ident">r</span>);
            <span class="kw">if</span> <span class="ident">road</span>.<span class="ident">src_i</span> <span class="op">==</span> <span class="ident">i2</span> <span class="op">|</span><span class="op">|</span> <span class="ident">road</span>.<span class="ident">dst_i</span> <span class="op">==</span> <span class="ident">i2</span> {
                <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">road</span>.<span class="ident">id</span>);
            }
        }
        <span class="prelude-val">None</span>
    }

    <span class="doccomment">/// Returns the highest elevation in the map</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">max_elevation</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">Distance</span> {
        <span class="comment">// TODO Cache?</span>
        <span class="self">self</span>.<span class="ident">all_intersections</span>()
            .<span class="ident">iter</span>()
            .<span class="ident">max_by_key</span>(<span class="op">|</span><span class="ident">i</span><span class="op">|</span> <span class="ident">i</span>.<span class="ident">elevation</span>)
            .<span class="ident">unwrap</span>()
            .<span class="ident">elevation</span>
    }

    <span class="doccomment">/// Does a turn at a stop sign go from a smaller to a larger road?</span>
    <span class="doccomment">/// (Note this doesn&#39;t look at unprotected movements in traffic signals, since we don&#39;t yet</span>
    <span class="doccomment">/// have good heuristics for when those exist)</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_unprotected_turn</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">from</span>: <span class="ident">RoadID</span>, <span class="ident">to</span>: <span class="ident">RoadID</span>, <span class="ident">turn_type</span>: <span class="ident">TurnType</span>) -&gt; <span class="ident">bool</span> {
        <span class="kw">let</span> <span class="ident">unprotected_turn_type</span> <span class="op">=</span> <span class="kw">if</span> <span class="self">self</span>.<span class="ident">get_config</span>().<span class="ident">driving_side</span> <span class="op">==</span> <span class="ident">DrivingSide::Right</span> {
            <span class="ident">TurnType::Left</span>
        } <span class="kw">else</span> {
            <span class="ident">TurnType::Right</span>
        };
        <span class="kw">let</span> <span class="ident">from</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="ident">from</span>);
        <span class="kw">let</span> <span class="ident">to</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_r</span>(<span class="ident">to</span>);
        <span class="ident">turn_type</span> <span class="op">==</span> <span class="ident">unprotected_turn_type</span>
            <span class="op">&amp;&amp;</span> <span class="ident">from</span>.<span class="ident">get_detailed_rank</span>() <span class="op">&lt;</span> <span class="ident">to</span>.<span class="ident">get_detailed_rank</span>()
            <span class="op">&amp;&amp;</span> <span class="kw">match</span> <span class="ident">from</span>.<span class="ident">common_endpoint</span>(<span class="ident">to</span>) {
                <span class="ident">CommonEndpoint::One</span>(<span class="ident">i</span>) =&gt; <span class="self">self</span>.<span class="ident">get_i</span>(<span class="ident">i</span>).<span class="ident">is_stop_sign</span>(),
                <span class="kw">_</span> =&gt; <span class="bool-val">false</span>,
            }
    }

    <span class="doccomment">/// Modifies the map in-place, removing parts not essential for the bike network tool.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">minify</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>) {
        <span class="comment">// We only need the CHs for driving and biking, to support mode shift.</span>
        <span class="self">self</span>.<span class="ident">pathfinder</span> <span class="op">=</span> <span class="ident">Pathfinder::new_limited</span>(
            <span class="self">self</span>,
            <span class="self">self</span>.<span class="ident">routing_params</span>().<span class="ident">clone</span>(),
            <span class="ident"><span class="kw">crate</span>::pathfind::CreateEngine::CH</span>,
            <span class="macro">vec!</span>[<span class="ident">PathConstraints::Car</span>, <span class="ident">PathConstraints::Bike</span>],
            <span class="ident">timer</span>,
        );

        <span class="comment">// Remove all routes, since we remove that pathfinder</span>
        <span class="self">self</span>.<span class="ident">transit_stops</span>.<span class="ident">clear</span>();
        <span class="self">self</span>.<span class="ident">transit_routes</span>.<span class="ident">clear</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">roads</span> {
            <span class="ident">r</span>.<span class="ident">transit_stops</span>.<span class="ident">clear</span>();
        }
    }

    <span class="doccomment">/// Modifies the map in-place, removing buildings.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">minify_buildings</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>) {
        <span class="self">self</span>.<span class="ident">buildings</span>.<span class="ident">clear</span>();

        <span class="comment">// We only need the CHs for driving.</span>
        <span class="self">self</span>.<span class="ident">pathfinder</span> <span class="op">=</span> <span class="ident">Pathfinder::new_limited</span>(
            <span class="self">self</span>,
            <span class="self">self</span>.<span class="ident">routing_params</span>().<span class="ident">clone</span>(),
            <span class="ident"><span class="kw">crate</span>::pathfind::CreateEngine::CH</span>,
            <span class="macro">vec!</span>[<span class="ident">PathConstraints::Car</span>],
            <span class="ident">timer</span>,
        );

        <span class="comment">// Remove all routes, since we remove that pathfinder</span>
        <span class="self">self</span>.<span class="ident">transit_stops</span>.<span class="ident">clear</span>();
        <span class="self">self</span>.<span class="ident">transit_routes</span>.<span class="ident">clear</span>();
        <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;mut</span> <span class="self">self</span>.<span class="ident">roads</span> {
            <span class="ident">r</span>.<span class="ident">transit_stops</span>.<span class="ident">clear</span>();
        }
    }
}
</code></pre></div>
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