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</pre><pre class="rust"><code><span class="kw">use</span> <span class="ident">std::collections</span>::{<span class="ident">BTreeMap</span>, <span class="ident">BTreeSet</span>, <span class="ident">VecDeque</span>};
<span class="kw">use</span> <span class="ident">std::fmt::Write</span>;

<span class="kw">use</span> <span class="ident">serde</span>::{<span class="ident">Deserialize</span>, <span class="ident">Serialize</span>};

<span class="kw">use</span> <span class="ident">abstutil::Counter</span>;
<span class="kw">use</span> <span class="ident">geom</span>::{<span class="ident">Duration</span>, <span class="ident">Pt2D</span>, <span class="ident">Time</span>};
<span class="kw">use</span> <span class="ident">map_model</span>::{
    <span class="ident">CompressedMovementID</span>, <span class="ident">IntersectionID</span>, <span class="ident">LaneID</span>, <span class="ident">Map</span>, <span class="ident">MovementID</span>, <span class="ident">ParkingLotID</span>, <span class="ident">Path</span>, <span class="ident">PathRequest</span>,
    <span class="ident">RoadID</span>, <span class="ident">TransitRouteID</span>, <span class="ident">TransitStopID</span>, <span class="ident">Traversable</span>, <span class="ident">TurnID</span>,
};
<span class="kw">use</span> <span class="ident">synthpop::TripMode</span>;

<span class="kw">use</span> <span class="kw">crate</span>::{<span class="ident">AgentID</span>, <span class="ident">AgentType</span>, <span class="ident">AlertLocation</span>, <span class="ident">CarID</span>, <span class="ident">Event</span>, <span class="ident">ParkingSpot</span>, <span class="ident">TripID</span>, <span class="ident">TripPhaseType</span>};

<span class="doccomment">/// As a simulation runs, different pieces emit Events. The Analytics object listens to these,</span>
<span class="doccomment">/// organizing and storing some information from them. The UI queries Analytics to draw time-series</span>
<span class="doccomment">/// and display statistics.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// For all maps whose weekday scenario fully runs, the game&#39;s release includes some &quot;prebaked</span>
<span class="doccomment">/// results.&quot; These are just serialized Analytics after running the simulation on a map without any</span>
<span class="doccomment">/// edits for the full day. This is the basis of A/B testing -- the player can edit the map, start</span>
<span class="doccomment">/// running the simulation, and compare the live Analytics to the prebaked baseline Analytics.</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Serialize</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Analytics</span> {
    <span class="kw">pub</span> <span class="ident">road_thruput</span>: <span class="ident">TimeSeriesCount</span><span class="op">&lt;</span><span class="ident">RoadID</span><span class="op">&gt;</span>,
    <span class="kw">pub</span> <span class="ident">intersection_thruput</span>: <span class="ident">TimeSeriesCount</span><span class="op">&lt;</span><span class="ident">IntersectionID</span><span class="op">&gt;</span>,
    <span class="comment">// TODO For traffic signals, intersection_thruput could theoretically use this. But that</span>
    <span class="comment">// requires occasionally expensive or complicated summing or merging over all directions of an</span>
    <span class="comment">// intersection. So for now, eat the file size cost.</span>
    <span class="kw">pub</span> <span class="ident">traffic_signal_thruput</span>: <span class="ident">TimeSeriesCount</span><span class="op">&lt;</span><span class="ident">CompressedMovementID</span><span class="op">&gt;</span>,

    <span class="doccomment">/// Most fields in Analytics are cumulative over time, but this is just for the current moment</span>
    <span class="doccomment">/// in time.</span>
    <span class="kw">pub</span> <span class="ident">demand</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">MovementID</span>, <span class="ident">usize</span><span class="op">&gt;</span>,

    <span class="comment">// TODO Reconsider this one</span>
    <span class="kw">pub</span> <span class="ident">bus_arrivals</span>: <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">CarID</span>, <span class="ident">TransitRouteID</span>, <span class="ident">TransitStopID</span>)<span class="op">&gt;</span>,
    <span class="doccomment">/// For each passenger boarding, how long did they wait at the stop?</span>
    <span class="kw">pub</span> <span class="ident">passengers_boarding</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">TransitStopID</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">TransitRouteID</span>, <span class="ident">Duration</span>)<span class="op">&gt;</span><span class="op">&gt;</span>,
    <span class="kw">pub</span> <span class="ident">passengers_alighting</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">TransitStopID</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">TransitRouteID</span>)<span class="op">&gt;</span><span class="op">&gt;</span>,

    <span class="kw">pub</span> <span class="ident">started_trips</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">TripID</span>, <span class="ident">Time</span><span class="op">&gt;</span>,
    <span class="doccomment">/// Finish time, ID, mode, trip duration if successful (or None if cancelled)</span>
    <span class="kw">pub</span> <span class="ident">finished_trips</span>: <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">TripID</span>, <span class="ident">TripMode</span>, <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Duration</span><span class="op">&gt;</span>)<span class="op">&gt;</span>,

    <span class="doccomment">/// Record different problems that each trip encounters.</span>
    <span class="kw">pub</span> <span class="ident">problems_per_trip</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">TripID</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">Problem</span>)<span class="op">&gt;</span><span class="op">&gt;</span>,

    <span class="comment">// TODO This subsumes finished_trips</span>
    <span class="kw">pub</span> <span class="ident">trip_log</span>: <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">TripID</span>, <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PathRequest</span><span class="op">&gt;</span>, <span class="ident">TripPhaseType</span>)<span class="op">&gt;</span>,

    <span class="comment">// TODO Transit riders aren&#39;t represented here yet, just the vehicle they&#39;re riding.</span>
    <span class="doccomment">/// Only for traffic signals. The u8 is the movement index from a CompressedMovementID.</span>
    <span class="kw">pub</span> <span class="ident">intersection_delays</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">IntersectionID</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">u8</span>, <span class="ident">Time</span>, <span class="ident">Duration</span>, <span class="ident">AgentType</span>)<span class="op">&gt;</span><span class="op">&gt;</span>,

    <span class="doccomment">/// Per parking lane or lot, when does a spot become filled (true) or free (false)</span>
    <span class="kw">pub</span> <span class="ident">parking_lane_changes</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">LaneID</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">bool</span>)<span class="op">&gt;</span><span class="op">&gt;</span>,
    <span class="kw">pub</span> <span class="ident">parking_lot_changes</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">ParkingLotID</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">bool</span>)<span class="op">&gt;</span><span class="op">&gt;</span>,

    <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="ident">alerts</span>: <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">AlertLocation</span>, <span class="ident">String</span>)<span class="op">&gt;</span>,

    <span class="doccomment">/// For benchmarking, we may want to disable collecting data.</span>
    <span class="ident">record_anything</span>: <span class="ident">bool</span>,
}

<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Debug</span>, <span class="ident">PartialEq</span>, <span class="ident">Serialize</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Problem</span> {
    <span class="doccomment">/// A vehicle waited &gt;30s, or a pedestrian waited &gt;15s.</span>
    <span class="ident">IntersectionDelay</span>(<span class="ident">IntersectionID</span>, <span class="ident">Duration</span>),
    <span class="doccomment">/// A cyclist crossed an intersection with &gt;4 connecting roads.</span>
    <span class="ident">ComplexIntersectionCrossing</span>(<span class="ident">IntersectionID</span>),
    <span class="doccomment">/// A pedestrian crossed an intersection with an Arterial street</span>
    <span class="ident">ArterialIntersectionCrossing</span>(<span class="ident">TurnID</span>),
    <span class="doccomment">/// Another vehicle wanted to over-take this cyclist somewhere on this lane or turn.</span>
    <span class="ident">OvertakeDesired</span>(<span class="ident">Traversable</span>),
    <span class="doccomment">/// Too many people are crossing the same sidewalk or crosswalk at the same time.</span>
    <span class="ident">PedestrianOvercrowding</span>(<span class="ident">Traversable</span>),
}

<span class="kw">impl</span> <span class="ident">Problem</span> {
    <span class="doccomment">/// Returns the rough location where the problem occurred -- just at the granularity of an</span>
    <span class="doccomment">/// entire lane, turn, or intersection.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">point</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">map</span>: <span class="kw-2">&amp;</span><span class="ident">Map</span>) -&gt; <span class="ident">Pt2D</span> {
        <span class="kw">match</span> <span class="self">self</span> {
            <span class="ident">Problem::IntersectionDelay</span>(<span class="ident">i</span>, <span class="kw">_</span>) <span class="op">|</span> <span class="ident">Problem::ComplexIntersectionCrossing</span>(<span class="ident">i</span>) =&gt; {
                <span class="ident">map</span>.<span class="ident">get_i</span>(<span class="kw-2">*</span><span class="ident">i</span>).<span class="ident">polygon</span>.<span class="ident">center</span>()
            }
            <span class="ident">Problem::OvertakeDesired</span>(<span class="ident">on</span>) <span class="op">|</span> <span class="ident">Problem::PedestrianOvercrowding</span>(<span class="ident">on</span>) =&gt; {
                <span class="ident">on</span>.<span class="ident">get_polyline</span>(<span class="ident">map</span>).<span class="ident">middle</span>()
            }
            <span class="ident">Problem::ArterialIntersectionCrossing</span>(<span class="ident">t</span>) =&gt; <span class="ident">map</span>.<span class="ident">get_t</span>(<span class="kw-2">*</span><span class="ident">t</span>).<span class="ident">geom</span>.<span class="ident">middle</span>(),
        }
    }
}

<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Copy</span>, <span class="ident">PartialEq</span>, <span class="ident">Eq</span>, <span class="ident">PartialOrd</span>, <span class="ident">Ord</span>, <span class="ident">Hash</span>, <span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">ProblemType</span> {
    <span class="ident">IntersectionDelay</span>,
    <span class="ident">ComplexIntersectionCrossing</span>,
    <span class="ident">OvertakeDesired</span>,
    <span class="ident">ArterialIntersectionCrossing</span>,
    <span class="ident">PedestrianOvercrowding</span>,
}

<span class="kw">impl</span> <span class="ident">From</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="ident">Problem</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">ProblemType</span> {
    <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">problem</span>: <span class="kw-2">&amp;</span><span class="ident">Problem</span>) -&gt; <span class="self">Self</span> {
        <span class="kw">match</span> <span class="ident">problem</span> {
            <span class="ident">Problem::IntersectionDelay</span>(<span class="kw">_</span>, <span class="kw">_</span>) =&gt; <span class="ident"><span class="self">Self</span>::IntersectionDelay</span>,
            <span class="ident">Problem::ComplexIntersectionCrossing</span>(<span class="kw">_</span>) =&gt; <span class="ident"><span class="self">Self</span>::ComplexIntersectionCrossing</span>,
            <span class="ident">Problem::OvertakeDesired</span>(<span class="kw">_</span>) =&gt; <span class="ident"><span class="self">Self</span>::OvertakeDesired</span>,
            <span class="ident">Problem::ArterialIntersectionCrossing</span>(<span class="kw">_</span>) =&gt; <span class="ident"><span class="self">Self</span>::ArterialIntersectionCrossing</span>,
            <span class="ident">Problem::PedestrianOvercrowding</span>(<span class="kw">_</span>) =&gt; <span class="ident"><span class="self">Self</span>::PedestrianOvercrowding</span>,
        }
    }
}

<span class="kw">impl</span> <span class="ident">ProblemType</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">count</span>(<span class="self">self</span>, <span class="ident">problems</span>: <span class="kw-2">&amp;</span>[(<span class="ident">Time</span>, <span class="ident">Problem</span>)]) -&gt; <span class="ident">usize</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="number">0</span>;
        <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">problem</span>) <span class="kw">in</span> <span class="ident">problems</span> {
            <span class="kw">if</span> <span class="self">self</span> <span class="op">==</span> <span class="ident">ProblemType::from</span>(<span class="ident">problem</span>) {
                <span class="ident">cnt</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
            }
        }
        <span class="ident">cnt</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all</span>() -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">ProblemType</span><span class="op">&gt;</span> {
        <span class="macro">vec!</span>[
            <span class="ident">ProblemType::IntersectionDelay</span>,
            <span class="ident">ProblemType::ComplexIntersectionCrossing</span>,
            <span class="ident">ProblemType::OvertakeDesired</span>,
            <span class="ident">ProblemType::ArterialIntersectionCrossing</span>,
            <span class="ident">ProblemType::PedestrianOvercrowding</span>,
        ]
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">name</span>(<span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="lifetime">&#39;static</span> <span class="ident">str</span> {
        <span class="kw">match</span> <span class="self">self</span> {
            <span class="ident">ProblemType::IntersectionDelay</span> =&gt; <span class="string">&quot;delays&quot;</span>,
            <span class="ident">ProblemType::ComplexIntersectionCrossing</span> =&gt; {
                <span class="string">&quot;where cyclists cross complex intersections&quot;</span>
            }
            <span class="ident">ProblemType::OvertakeDesired</span> =&gt; <span class="string">&quot;where cars want to overtake cyclists&quot;</span>,
            <span class="ident">ProblemType::ArterialIntersectionCrossing</span> =&gt; {
                <span class="string">&quot;where pedestrians cross arterial intersections&quot;</span>
            }
            <span class="ident">ProblemType::PedestrianOvercrowding</span> =&gt; <span class="string">&quot;where pedestrians are over-crowded&quot;</span>,
        }
    }
}

<span class="kw">impl</span> <span class="ident">Analytics</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">record_anything</span>: <span class="ident">bool</span>) -&gt; <span class="ident">Analytics</span> {
        <span class="ident">Analytics</span> {
            <span class="ident">road_thruput</span>: <span class="ident">TimeSeriesCount::new</span>(),
            <span class="ident">intersection_thruput</span>: <span class="ident">TimeSeriesCount::new</span>(),
            <span class="ident">traffic_signal_thruput</span>: <span class="ident">TimeSeriesCount::new</span>(),
            <span class="ident">demand</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">bus_arrivals</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">passengers_boarding</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">passengers_alighting</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">started_trips</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">finished_trips</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">problems_per_trip</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">trip_log</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">intersection_delays</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">parking_lane_changes</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">parking_lot_changes</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">alerts</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">record_anything</span>,
        }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">event</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">ev</span>: <span class="ident">Event</span>, <span class="ident">time</span>: <span class="ident">Time</span>, <span class="ident">map</span>: <span class="kw-2">&amp;</span><span class="ident">Map</span>) {
        <span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">record_anything</span> {
            <span class="kw">return</span>;
        }

        <span class="comment">// Throughput</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::AgentEntersTraversable</span>(<span class="ident">a</span>, <span class="kw">_</span>, <span class="ident">to</span>, <span class="ident">passengers</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="kw">match</span> <span class="ident">to</span> {
                <span class="ident">Traversable::Lane</span>(<span class="ident">l</span>) =&gt; {
                    <span class="self">self</span>.<span class="ident">road_thruput</span>.<span class="ident">record</span>(<span class="ident">time</span>, <span class="ident">l</span>.<span class="ident">road</span>, <span class="ident">a</span>.<span class="ident">to_type</span>(), <span class="number">1</span>);
                    <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">n</span>) <span class="op">=</span> <span class="ident">passengers</span> {
                        <span class="self">self</span>.<span class="ident">road_thruput</span>
                            .<span class="ident">record</span>(<span class="ident">time</span>, <span class="ident">l</span>.<span class="ident">road</span>, <span class="ident">AgentType::TransitRider</span>, <span class="ident">n</span>);
                    }
                }
                <span class="ident">Traversable::Turn</span>(<span class="ident">t</span>) =&gt; {
                    <span class="self">self</span>.<span class="ident">intersection_thruput</span>
                        .<span class="ident">record</span>(<span class="ident">time</span>, <span class="ident">t</span>.<span class="ident">parent</span>, <span class="ident">a</span>.<span class="ident">to_type</span>(), <span class="number">1</span>);
                    <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">n</span>) <span class="op">=</span> <span class="ident">passengers</span> {
                        <span class="self">self</span>.<span class="ident">intersection_thruput</span>.<span class="ident">record</span>(
                            <span class="ident">time</span>,
                            <span class="ident">t</span>.<span class="ident">parent</span>,
                            <span class="ident">AgentType::TransitRider</span>,
                            <span class="ident">n</span>,
                        );
                    }

                    <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">id</span>, <span class="ident">compressed</span>)) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_movement_for_traffic_signal</span>(<span class="ident">t</span>) {
                        <span class="kw-2">*</span><span class="self">self</span>.<span class="ident">demand</span>.<span class="ident">entry</span>(<span class="ident">id</span>).<span class="ident">or_insert</span>(<span class="number">0</span>) <span class="op">-</span><span class="op">=</span> <span class="number">1</span>;
                        <span class="self">self</span>.<span class="ident">traffic_signal_thruput</span>
                            .<span class="ident">record</span>(<span class="ident">time</span>, <span class="ident">compressed</span>, <span class="ident">a</span>.<span class="ident">to_type</span>(), <span class="number">1</span>);
                        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">n</span>) <span class="op">=</span> <span class="ident">passengers</span> {
                            <span class="self">self</span>.<span class="ident">traffic_signal_thruput</span>.<span class="ident">record</span>(
                                <span class="ident">time</span>,
                                <span class="ident">compressed</span>,
                                <span class="ident">AgentType::TransitRider</span>,
                                <span class="ident">n</span>,
                            );
                        }
                    }
                }
            };
        }
        <span class="kw">match</span> <span class="ident">ev</span> {
            <span class="ident">Event::PersonLeavesMap</span>(<span class="kw">_</span>, <span class="prelude-val">Some</span>(<span class="ident">a</span>), <span class="ident">i</span>) =&gt; {
                <span class="comment">// Ignore cancelled trips</span>
                <span class="self">self</span>.<span class="ident">intersection_thruput</span>.<span class="ident">record</span>(<span class="ident">time</span>, <span class="ident">i</span>, <span class="ident">a</span>.<span class="ident">to_type</span>(), <span class="number">1</span>);
            }
            <span class="ident">Event::PersonEntersMap</span>(<span class="kw">_</span>, <span class="ident">a</span>, <span class="ident">i</span>) =&gt; {
                <span class="self">self</span>.<span class="ident">intersection_thruput</span>.<span class="ident">record</span>(<span class="ident">time</span>, <span class="ident">i</span>, <span class="ident">a</span>.<span class="ident">to_type</span>(), <span class="number">1</span>);
            }
            <span class="kw">_</span> =&gt; {}
        }

        <span class="comment">// Bus arrivals</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::BusArrivedAtStop</span>(<span class="ident">bus</span>, <span class="ident">route</span>, <span class="ident">stop</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="self">self</span>.<span class="ident">bus_arrivals</span>.<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">bus</span>, <span class="ident">route</span>, <span class="ident">stop</span>));
        }

        <span class="comment">// Passengers boarding/alighting</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::PassengerBoardsTransit</span>(<span class="kw">_</span>, <span class="kw">_</span>, <span class="ident">route</span>, <span class="ident">stop</span>, <span class="ident">waiting</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="self">self</span>.<span class="ident">passengers_boarding</span>
                .<span class="ident">entry</span>(<span class="ident">stop</span>)
                .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">route</span>, <span class="ident">waiting</span>));
        }
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::PassengerAlightsTransit</span>(<span class="kw">_</span>, <span class="kw">_</span>, <span class="ident">route</span>, <span class="ident">stop</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="self">self</span>.<span class="ident">passengers_alighting</span>
                .<span class="ident">entry</span>(<span class="ident">stop</span>)
                .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">route</span>));
        }

        <span class="comment">// Started trips</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::TripPhaseStarting</span>(<span class="ident">id</span>, <span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="self">self</span>.<span class="ident">started_trips</span>.<span class="ident">entry</span>(<span class="ident">id</span>).<span class="ident">or_insert</span>(<span class="ident">time</span>);
        }

        <span class="comment">// Finished trips</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::TripFinished</span> {
            <span class="ident">trip</span>,
            <span class="ident">mode</span>,
            <span class="ident">total_time</span>,
            ..
        } <span class="op">=</span> <span class="ident">ev</span>
        {
            <span class="self">self</span>.<span class="ident">finished_trips</span>
                .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">trip</span>, <span class="ident">mode</span>, <span class="prelude-val">Some</span>(<span class="ident">total_time</span>)));
        } <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::TripCancelled</span>(<span class="ident">id</span>, <span class="ident">mode</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="self">self</span>.<span class="ident">started_trips</span>.<span class="ident">entry</span>(<span class="ident">id</span>).<span class="ident">or_insert</span>(<span class="ident">time</span>);
            <span class="self">self</span>.<span class="ident">finished_trips</span>.<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">id</span>, <span class="ident">mode</span>, <span class="prelude-val">None</span>));
        }

        <span class="comment">// Intersection delay</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::IntersectionDelayMeasured</span>(<span class="ident">trip_id</span>, <span class="ident">turn_id</span>, <span class="ident">agent</span>, <span class="ident">delay</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="kw">let</span> <span class="ident">threshold</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">agent</span> {
                <span class="ident">AgentID::Car</span>(<span class="kw">_</span>) =&gt; <span class="ident">Duration::seconds</span>(<span class="number">30.0</span>),
                <span class="ident">AgentID::Pedestrian</span>(<span class="kw">_</span>) =&gt; <span class="ident">Duration::seconds</span>(<span class="number">15.0</span>),
                <span class="comment">// Don&#39;t record for riders</span>
                <span class="ident">AgentID::BusPassenger</span>(<span class="kw">_</span>, <span class="kw">_</span>) =&gt; <span class="ident">Duration::hours</span>(<span class="number">24</span>),
            };
            <span class="kw">if</span> <span class="ident">delay</span> <span class="op">&gt;</span> <span class="ident">threshold</span> {
                <span class="self">self</span>.<span class="ident">problems_per_trip</span>
                    .<span class="ident">entry</span>(<span class="ident">trip_id</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">Problem::IntersectionDelay</span>(<span class="ident">turn_id</span>.<span class="ident">parent</span>, <span class="ident">delay</span>)));
            }

            <span class="comment">// Save memory and space by only storing these measurements at traffic signals, for</span>
            <span class="comment">// turns that actually conflict (so no SharedSidewalkCorners).</span>
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="kw">_</span>, <span class="ident">compressed</span>)) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_movement_for_traffic_signal</span>(<span class="ident">turn_id</span>) {
                <span class="self">self</span>.<span class="ident">intersection_delays</span>
                    .<span class="ident">entry</span>(<span class="ident">turn_id</span>.<span class="ident">parent</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">compressed</span>.<span class="ident">idx</span>, <span class="ident">time</span>, <span class="ident">delay</span>, <span class="ident">agent</span>.<span class="ident">to_type</span>()));
            }
        }

        <span class="comment">// Parking spot changes</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::CarReachedParkingSpot</span>(<span class="kw">_</span>, <span class="ident">spot</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="kw">if</span> <span class="kw">let</span> <span class="ident">ParkingSpot::Onstreet</span>(<span class="ident">l</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">spot</span> {
                <span class="self">self</span>.<span class="ident">parking_lane_changes</span>
                    .<span class="ident">entry</span>(<span class="ident">l</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="bool-val">true</span>));
            } <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="ident">ParkingSpot::Lot</span>(<span class="ident">pl</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">spot</span> {
                <span class="self">self</span>.<span class="ident">parking_lot_changes</span>
                    .<span class="ident">entry</span>(<span class="ident">pl</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="bool-val">true</span>));
            }
        }
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::CarLeftParkingSpot</span>(<span class="kw">_</span>, <span class="ident">spot</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="kw">if</span> <span class="kw">let</span> <span class="ident">ParkingSpot::Onstreet</span>(<span class="ident">l</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">spot</span> {
                <span class="self">self</span>.<span class="ident">parking_lane_changes</span>
                    .<span class="ident">entry</span>(<span class="ident">l</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="bool-val">false</span>));
            } <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="ident">ParkingSpot::Lot</span>(<span class="ident">pl</span>, <span class="kw">_</span>) <span class="op">=</span> <span class="ident">spot</span> {
                <span class="self">self</span>.<span class="ident">parking_lot_changes</span>
                    .<span class="ident">entry</span>(<span class="ident">pl</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="bool-val">false</span>));
            }
        }

        <span class="comment">// Safety metrics</span>
        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::AgentEntersTraversable</span>(<span class="ident">a</span>, <span class="prelude-val">Some</span>(<span class="ident">trip</span>), <span class="ident">Traversable::Turn</span>(<span class="ident">t</span>), <span class="kw">_</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="kw">if</span> <span class="ident">a</span>.<span class="ident">to_type</span>() <span class="op">==</span> <span class="ident">AgentType::Bike</span> <span class="op">&amp;&amp;</span> <span class="ident">map</span>.<span class="ident">get_i</span>(<span class="ident">t</span>.<span class="ident">parent</span>).<span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">&gt;</span> <span class="number">4</span> {
                <span class="comment">// Defining a &quot;large intersection&quot; is tricky. If a road is split into two one-ways,</span>
                <span class="comment">// should we count it as two roads? If we haven&#39;t consolidated some crazy</span>
                <span class="comment">// intersection, we won&#39;t see it.</span>
                <span class="self">self</span>.<span class="ident">problems_per_trip</span>
                    .<span class="ident">entry</span>(<span class="ident">trip</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">Problem::ComplexIntersectionCrossing</span>(<span class="ident">t</span>.<span class="ident">parent</span>)));
            }
        }

        <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Event::AgentEntersTraversable</span>(<span class="ident">a</span>, <span class="prelude-val">Some</span>(<span class="ident">trip</span>), <span class="ident">Traversable::Turn</span>(<span class="ident">t</span>), <span class="kw">_</span>) <span class="op">=</span> <span class="ident">ev</span> {
            <span class="kw">let</span> <span class="ident">turn</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_t</span>(<span class="ident">t</span>);
            <span class="kw">if</span> <span class="ident">a</span>.<span class="ident">to_type</span>() <span class="op">==</span> <span class="ident">AgentType::Pedestrian</span> <span class="op">&amp;&amp;</span> <span class="ident">turn</span>.<span class="ident">is_crossing_arterial_intersection</span>(<span class="ident">map</span>) {
                <span class="self">self</span>.<span class="ident">problems_per_trip</span>
                    .<span class="ident">entry</span>(<span class="ident">trip</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">Problem::ArterialIntersectionCrossing</span>(<span class="ident">turn</span>.<span class="ident">id</span>)));
            }
        }

        <span class="comment">// TODO Kinda hacky, but these all consume the event, so kinda bundle em.</span>
        <span class="kw">match</span> <span class="ident">ev</span> {
            <span class="ident">Event::TripPhaseStarting</span>(<span class="ident">id</span>, <span class="kw">_</span>, <span class="ident">maybe_req</span>, <span class="ident">phase_type</span>) =&gt; {
                <span class="self">self</span>.<span class="ident">trip_log</span>.<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">id</span>, <span class="ident">maybe_req</span>, <span class="ident">phase_type</span>));
            }
            <span class="ident">Event::TripCancelled</span>(<span class="ident">id</span>, <span class="kw">_</span>) =&gt; {
                <span class="self">self</span>.<span class="ident">trip_log</span>
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">id</span>, <span class="prelude-val">None</span>, <span class="ident">TripPhaseType::Cancelled</span>));
            }
            <span class="ident">Event::TripFinished</span> { <span class="ident">trip</span>, .. } =&gt; {
                <span class="self">self</span>.<span class="ident">trip_log</span>
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">trip</span>, <span class="prelude-val">None</span>, <span class="ident">TripPhaseType::Finished</span>));
            }
            <span class="ident">Event::PathAmended</span>(<span class="ident">path</span>) =&gt; {
                <span class="self">self</span>.<span class="ident">record_demand</span>(<span class="kw-2">&amp;</span><span class="ident">path</span>, <span class="ident">map</span>);
            }
            <span class="ident">Event::Alert</span>(<span class="ident">loc</span>, <span class="ident">msg</span>) =&gt; {
                <span class="self">self</span>.<span class="ident">alerts</span>.<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">loc</span>, <span class="ident">msg</span>));
            }
            <span class="ident">Event::ProblemEncountered</span>(<span class="ident">trip</span>, <span class="ident">problem</span>) =&gt; {
                <span class="self">self</span>.<span class="ident">problems_per_trip</span>
                    .<span class="ident">entry</span>(<span class="ident">trip</span>)
                    .<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>)
                    .<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">problem</span>));
            }
            <span class="kw">_</span> =&gt; {}
        }
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">record_demand</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">path</span>: <span class="kw-2">&amp;</span><span class="ident">Path</span>, <span class="ident">map</span>: <span class="kw-2">&amp;</span><span class="ident">Map</span>) {
        <span class="kw">for</span> <span class="ident">step</span> <span class="kw">in</span> <span class="ident">path</span>.<span class="ident">get_steps</span>() {
            <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Traversable::Turn</span>(<span class="ident">t</span>) <span class="op">=</span> <span class="ident">step</span>.<span class="ident">as_traversable</span>() {
                <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">id</span>, <span class="kw">_</span>)) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_movement_for_traffic_signal</span>(<span class="ident">t</span>) {
                    <span class="kw-2">*</span><span class="self">self</span>.<span class="ident">demand</span>.<span class="ident">entry</span>(<span class="ident">id</span>).<span class="ident">or_insert</span>(<span class="number">0</span>) <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
                }
            }
        }
    }

    <span class="comment">// TODO If these ever need to be speeded up, just cache the histogram and index in the events</span>
    <span class="comment">// list.</span>

    <span class="doccomment">/// Ignores the current time. Returns None for cancelled trips.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">finished_trip_time</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">trip</span>: <span class="ident">TripID</span>) -&gt; <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Duration</span><span class="op">&gt;</span> {
        <span class="comment">// TODO This is so inefficient!</span>
        <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">id</span>, <span class="kw">_</span>, <span class="ident">maybe_dt</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">finished_trips</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">id</span> <span class="op">==</span> <span class="ident">trip</span> {
                <span class="kw">return</span> <span class="kw-2">*</span><span class="ident">maybe_dt</span>;
            }
        }
        <span class="prelude-val">None</span>
    }

    <span class="doccomment">/// Returns pairs of trip times for finished trips in both worlds. (ID, before, after, mode)</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">both_finished_trips</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">now</span>: <span class="ident">Time</span>,
        <span class="ident">before</span>: <span class="kw-2">&amp;</span><span class="ident">Analytics</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">TripID</span>, <span class="ident">Duration</span>, <span class="ident">Duration</span>, <span class="ident">TripMode</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">id</span>, <span class="kw">_</span>, <span class="ident">maybe_dt</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">finished_trips</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                <span class="kw">break</span>;
            }
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">dt</span>) <span class="op">=</span> <span class="ident">maybe_dt</span> {
                <span class="ident">a</span>.<span class="ident">insert</span>(<span class="kw-2">*</span><span class="ident">id</span>, <span class="kw-2">*</span><span class="ident">dt</span>);
            }
        }

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">results</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">id</span>, <span class="ident">mode</span>, <span class="ident">maybe_dt</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">before</span>.<span class="ident">finished_trips</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                <span class="kw">break</span>;
            }
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">dt</span>) <span class="op">=</span> <span class="ident">maybe_dt</span> {
                <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">dt1</span>) <span class="op">=</span> <span class="ident">a</span>.<span class="ident">remove</span>(<span class="ident">id</span>) {
                    <span class="ident">results</span>.<span class="ident">push</span>((<span class="kw-2">*</span><span class="ident">id</span>, <span class="kw-2">*</span><span class="ident">dt</span>, <span class="ident">dt1</span>, <span class="kw-2">*</span><span class="ident">mode</span>));
                }
            }
        }
        <span class="ident">results</span>
    }

    <span class="doccomment">/// If calling on prebaked Analytics, be careful to pass in an unedited map, to match how the</span>
    <span class="doccomment">/// simulation was originally run. Otherwise the paths may be nonsense.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_trip_phases</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">trip</span>: <span class="ident">TripID</span>, <span class="ident">map</span>: <span class="kw-2">&amp;</span><span class="ident">Map</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">TripPhase</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">phases</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">TripPhase</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">id</span>, <span class="ident">maybe_req</span>, <span class="ident">phase_type</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">trip_log</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">id</span> <span class="op">!</span><span class="op">=</span> <span class="ident">trip</span> {
                <span class="kw">continue</span>;
            }
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">last</span>) <span class="op">=</span> <span class="ident">phases</span>.<span class="ident">last_mut</span>() {
                <span class="ident">last</span>.<span class="ident">end_time</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="kw-2">*</span><span class="ident">t</span>);
            }
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">phase_type</span> <span class="op">==</span> <span class="ident">TripPhaseType::Finished</span> <span class="op">|</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">phase_type</span> <span class="op">==</span> <span class="ident">TripPhaseType::Cancelled</span> {
                <span class="kw">break</span>;
            }
            <span class="ident">phases</span>.<span class="ident">push</span>(<span class="ident">TripPhase</span> {
                <span class="ident">start_time</span>: <span class="kw-2">*</span><span class="ident">t</span>,
                <span class="ident">end_time</span>: <span class="prelude-val">None</span>,
                <span class="ident">path</span>: <span class="ident">maybe_req</span>.<span class="ident">clone</span>().<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">req</span><span class="op">|</span> <span class="ident">map</span>.<span class="ident">pathfind</span>(<span class="ident">req</span>).<span class="ident">ok</span>()),
                <span class="ident">has_path_req</span>: <span class="ident">maybe_req</span>.<span class="ident">is_some</span>(),
                <span class="ident">phase_type</span>: <span class="kw-2">*</span><span class="ident">phase_type</span>,
            })
        }
        <span class="ident">phases</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_all_trip_phases</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">TripID</span>, <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">TripPhase</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">trips</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">id</span>, <span class="ident">maybe_req</span>, <span class="ident">phase_type</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">trip_log</span> {
            <span class="kw">let</span> <span class="ident">phases</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">TripPhase</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">trips</span>.<span class="ident">entry</span>(<span class="kw-2">*</span><span class="ident">id</span>).<span class="ident">or_insert_with</span>(<span class="ident">Vec::new</span>);
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">last</span>) <span class="op">=</span> <span class="ident">phases</span>.<span class="ident">last_mut</span>() {
                <span class="ident">last</span>.<span class="ident">end_time</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="kw-2">*</span><span class="ident">t</span>);
            }
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">phase_type</span> <span class="op">==</span> <span class="ident">TripPhaseType::Finished</span> {
                <span class="kw">continue</span>;
            }
            <span class="comment">// Remove cancelled trips</span>
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">phase_type</span> <span class="op">==</span> <span class="ident">TripPhaseType::Cancelled</span> {
                <span class="ident">trips</span>.<span class="ident">remove</span>(<span class="ident">id</span>);
                <span class="kw">continue</span>;
            }
            <span class="ident">phases</span>.<span class="ident">push</span>(<span class="ident">TripPhase</span> {
                <span class="ident">start_time</span>: <span class="kw-2">*</span><span class="ident">t</span>,
                <span class="ident">end_time</span>: <span class="prelude-val">None</span>,
                <span class="comment">// Don&#39;t compute any paths</span>
                <span class="ident">path</span>: <span class="prelude-val">None</span>,
                <span class="ident">has_path_req</span>: <span class="ident">maybe_req</span>.<span class="ident">is_some</span>(),
                <span class="ident">phase_type</span>: <span class="kw-2">*</span><span class="ident">phase_type</span>,
            })
        }
        <span class="ident">trips</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">active_agents</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">now</span>: <span class="ident">Time</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">starts_stops</span>: <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">bool</span>)<span class="op">&gt;</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> <span class="ident">t</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">started_trips</span>.<span class="ident">values</span>() {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">&lt;</span><span class="op">=</span> <span class="ident">now</span> {
                <span class="ident">starts_stops</span>.<span class="ident">push</span>((<span class="kw-2">*</span><span class="ident">t</span>, <span class="bool-val">false</span>));
            }
        }
        <span class="kw">for</span> (<span class="ident">t</span>, <span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">finished_trips</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                <span class="kw">break</span>;
            }
            <span class="ident">starts_stops</span>.<span class="ident">push</span>((<span class="kw-2">*</span><span class="ident">t</span>, <span class="bool-val">true</span>));
        }
        <span class="comment">// Make sure the start events get sorted before the stops.</span>
        <span class="ident">starts_stops</span>.<span class="ident">sort</span>();

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pts</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="number">0</span>;
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">last_t</span> <span class="op">=</span> <span class="ident">Time::START_OF_DAY</span>;
        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">ended</span>) <span class="kw">in</span> <span class="ident">starts_stops</span> {
            <span class="kw">if</span> <span class="ident">t</span> <span class="op">!</span><span class="op">=</span> <span class="ident">last_t</span> {
                <span class="comment">// Step functions. Don&#39;t interpolate.</span>
                <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">last_t</span>, <span class="ident">cnt</span>));
            }
            <span class="ident">last_t</span> <span class="op">=</span> <span class="ident">t</span>;
            <span class="kw">if</span> <span class="ident">ended</span> {
                <span class="comment">// release mode disables this check, so...</span>
                <span class="kw">if</span> <span class="ident">cnt</span> <span class="op">==</span> <span class="number">0</span> {
                    <span class="macro">panic!</span>(<span class="string">&quot;active_agents at {} has more ended trips than started&quot;</span>, <span class="ident">t</span>);
                }
                <span class="ident">cnt</span> <span class="op">-</span><span class="op">=</span> <span class="number">1</span>;
            } <span class="kw">else</span> {
                <span class="ident">cnt</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
            }
        }
        <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">last_t</span>, <span class="ident">cnt</span>));
        <span class="kw">if</span> <span class="ident">last_t</span> <span class="op">!</span><span class="op">=</span> <span class="ident">now</span> {
            <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">now</span>, <span class="ident">cnt</span>));
        }
        <span class="ident">pts</span>
    }

    <span class="doccomment">/// Returns the free spots over time</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parking_lane_availability</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">now</span>: <span class="ident">Time</span>,
        <span class="ident">l</span>: <span class="ident">LaneID</span>,
        <span class="ident">capacity</span>: <span class="ident">usize</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span> {
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">changes</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">parking_lane_changes</span>.<span class="ident">get</span>(<span class="kw-2">&amp;</span><span class="ident">l</span>) {
            <span class="ident">Analytics::parking_spot_availability</span>(<span class="ident">now</span>, <span class="ident">changes</span>, <span class="ident">capacity</span>)
        } <span class="kw">else</span> {
            <span class="macro">vec!</span>[(<span class="ident">Time::START_OF_DAY</span>, <span class="ident">capacity</span>), (<span class="ident">now</span>, <span class="ident">capacity</span>)]
        }
    }
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parking_lot_availability</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">now</span>: <span class="ident">Time</span>,
        <span class="ident">pl</span>: <span class="ident">ParkingLotID</span>,
        <span class="ident">capacity</span>: <span class="ident">usize</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span> {
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">changes</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">parking_lot_changes</span>.<span class="ident">get</span>(<span class="kw-2">&amp;</span><span class="ident">pl</span>) {
            <span class="ident">Analytics::parking_spot_availability</span>(<span class="ident">now</span>, <span class="ident">changes</span>, <span class="ident">capacity</span>)
        } <span class="kw">else</span> {
            <span class="macro">vec!</span>[(<span class="ident">Time::START_OF_DAY</span>, <span class="ident">capacity</span>), (<span class="ident">now</span>, <span class="ident">capacity</span>)]
        }
    }

    <span class="kw">fn</span> <span class="ident">parking_spot_availability</span>(
        <span class="ident">now</span>: <span class="ident">Time</span>,
        <span class="ident">changes</span>: <span class="kw-2">&amp;</span>[(<span class="ident">Time</span>, <span class="ident">bool</span>)],
        <span class="ident">capacity</span>: <span class="ident">usize</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pts</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="ident">capacity</span>;
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">last_t</span> <span class="op">=</span> <span class="ident">Time::START_OF_DAY</span>;

        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">filled</span>) <span class="kw">in</span> <span class="ident">changes</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                <span class="kw">break</span>;
            }
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">!</span><span class="op">=</span> <span class="ident">last_t</span> {
                <span class="comment">// Step functions. Don&#39;t interpolate.</span>
                <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">last_t</span>, <span class="ident">cnt</span>));
            }
            <span class="ident">last_t</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">t</span>;
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">filled</span> {
                <span class="kw">if</span> <span class="ident">cnt</span> <span class="op">==</span> <span class="number">0</span> {
                    <span class="macro">panic!</span>(<span class="string">&quot;parking_spot_availability at {} went below 0&quot;</span>, <span class="ident">t</span>);
                }
                <span class="ident">cnt</span> <span class="op">-</span><span class="op">=</span> <span class="number">1</span>;
            } <span class="kw">else</span> {
                <span class="ident">cnt</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
            }
        }
        <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">last_t</span>, <span class="ident">cnt</span>));
        <span class="kw">if</span> <span class="ident">last_t</span> <span class="op">!</span><span class="op">=</span> <span class="ident">now</span> {
            <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">now</span>, <span class="ident">cnt</span>));
        }
        <span class="ident">pts</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">problems_per_intersection</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">now</span>: <span class="ident">Time</span>,
        <span class="ident">id</span>: <span class="ident">IntersectionID</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">ProblemType</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">window_size</span> <span class="op">=</span> <span class="ident">Duration::minutes</span>(<span class="number">15</span>);

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">raw_per_type</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">ProblemType</span>, <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Time</span><span class="op">&gt;</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> <span class="ident">problem_type</span> <span class="kw">in</span> <span class="ident">ProblemType::all</span>() {
            <span class="ident">raw_per_type</span>.<span class="ident">insert</span>(<span class="ident">problem_type</span>, <span class="ident">Vec::new</span>());
        }

        <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">problems</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">problems_per_trip</span> {
            <span class="kw">for</span> (<span class="ident">time</span>, <span class="ident">problem</span>) <span class="kw">in</span> <span class="ident">problems</span> {
                <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">time</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                    <span class="kw">break</span>;
                }
                <span class="kw">let</span> <span class="ident">i</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">problem</span> {
                    <span class="ident">Problem::IntersectionDelay</span>(<span class="ident">i</span>, <span class="kw">_</span>) <span class="op">|</span> <span class="ident">Problem::ComplexIntersectionCrossing</span>(<span class="ident">i</span>) =&gt; {
                        <span class="kw-2">*</span><span class="ident">i</span>
                    }
                    <span class="ident">Problem::OvertakeDesired</span>(<span class="ident">on</span>) <span class="op">|</span> <span class="ident">Problem::PedestrianOvercrowding</span>(<span class="ident">on</span>) =&gt; {
                        <span class="kw">match</span> <span class="ident">on</span> {
                            <span class="ident">Traversable::Turn</span>(<span class="ident">t</span>) =&gt; <span class="ident">t</span>.<span class="ident">parent</span>,
                            <span class="kw">_</span> =&gt; {
                                <span class="kw">continue</span>;
                            }
                        }
                    }
                    <span class="ident">Problem::ArterialIntersectionCrossing</span>(<span class="ident">t</span>) =&gt; <span class="ident">t</span>.<span class="ident">parent</span>,
                };
                <span class="kw">if</span> <span class="ident">id</span> <span class="op">==</span> <span class="ident">i</span> {
                    <span class="ident">raw_per_type</span>
                        .<span class="ident">get_mut</span>(<span class="kw-2">&amp;</span><span class="ident">ProblemType::from</span>(<span class="ident">problem</span>))
                        .<span class="ident">unwrap</span>()
                        .<span class="ident">push</span>(<span class="kw-2">*</span><span class="ident">time</span>);
                }
            }
        }

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> (<span class="ident">problem_type</span>, <span class="kw-2">mut</span> <span class="ident">raw</span>) <span class="kw">in</span> <span class="ident">raw_per_type</span> {
            <span class="ident">raw</span>.<span class="ident">sort</span>();
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pts</span> <span class="op">=</span> <span class="macro">vec!</span>[(<span class="ident">Time::START_OF_DAY</span>, <span class="number">0</span>)];
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">window</span> <span class="op">=</span> <span class="ident">SlidingWindow::new</span>(<span class="ident">window_size</span>);
            <span class="kw">for</span> <span class="ident">t</span> <span class="kw">in</span> <span class="ident">raw</span> {
                <span class="kw">let</span> <span class="ident">count</span> <span class="op">=</span> <span class="ident">window</span>.<span class="ident">add</span>(<span class="ident">t</span>);
                <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">t</span>, <span class="ident">count</span>));
            }
            <span class="ident">window</span>.<span class="ident">close_off_pts</span>(<span class="kw-2">&amp;mut</span> <span class="ident">pts</span>, <span class="ident">now</span>);
            <span class="ident">result</span>.<span class="ident">push</span>((<span class="ident">problem_type</span>, <span class="ident">pts</span>));
        }
        <span class="ident">result</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">problems_per_lane</span>(
        <span class="kw-2">&amp;</span><span class="self">self</span>,
        <span class="ident">now</span>: <span class="ident">Time</span>,
        <span class="ident">id</span>: <span class="ident">LaneID</span>,
    ) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">ProblemType</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">window_size</span> <span class="op">=</span> <span class="ident">Duration::minutes</span>(<span class="number">15</span>);

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">raw_per_type</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">ProblemType</span>, <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Time</span><span class="op">&gt;</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> <span class="ident">problem_type</span> <span class="kw">in</span> <span class="ident">ProblemType::all</span>() {
            <span class="ident">raw_per_type</span>.<span class="ident">insert</span>(<span class="ident">problem_type</span>, <span class="ident">Vec::new</span>());
        }

        <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">problems</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">problems_per_trip</span> {
            <span class="kw">for</span> (<span class="ident">time</span>, <span class="ident">problem</span>) <span class="kw">in</span> <span class="ident">problems</span> {
                <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">time</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                    <span class="kw">break</span>;
                }
                <span class="kw">let</span> <span class="ident">l</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">problem</span> {
                    <span class="ident">Problem::OvertakeDesired</span>(<span class="ident">on</span>) <span class="op">|</span> <span class="ident">Problem::PedestrianOvercrowding</span>(<span class="ident">on</span>) =&gt; {
                        <span class="kw">match</span> <span class="ident">on</span> {
                            <span class="ident">Traversable::Lane</span>(<span class="ident">l</span>) =&gt; <span class="kw-2">*</span><span class="ident">l</span>,
                            <span class="kw">_</span> =&gt; {
                                <span class="kw">continue</span>;
                            }
                        }
                    }
                    <span class="kw">_</span> =&gt; {
                        <span class="kw">continue</span>;
                    }
                };
                <span class="kw">if</span> <span class="ident">id</span> <span class="op">==</span> <span class="ident">l</span> {
                    <span class="ident">raw_per_type</span>
                        .<span class="ident">get_mut</span>(<span class="kw-2">&amp;</span><span class="ident">ProblemType::from</span>(<span class="ident">problem</span>))
                        .<span class="ident">unwrap</span>()
                        .<span class="ident">push</span>(<span class="kw-2">*</span><span class="ident">time</span>);
                }
            }
        }

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> (<span class="ident">problem_type</span>, <span class="kw-2">mut</span> <span class="ident">raw</span>) <span class="kw">in</span> <span class="ident">raw_per_type</span> {
            <span class="ident">raw</span>.<span class="ident">sort</span>();
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pts</span> <span class="op">=</span> <span class="macro">vec!</span>[(<span class="ident">Time::START_OF_DAY</span>, <span class="number">0</span>)];
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">window</span> <span class="op">=</span> <span class="ident">SlidingWindow::new</span>(<span class="ident">window_size</span>);
            <span class="kw">for</span> <span class="ident">t</span> <span class="kw">in</span> <span class="ident">raw</span> {
                <span class="kw">let</span> <span class="ident">count</span> <span class="op">=</span> <span class="ident">window</span>.<span class="ident">add</span>(<span class="ident">t</span>);
                <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">t</span>, <span class="ident">count</span>));
            }
            <span class="ident">window</span>.<span class="ident">close_off_pts</span>(<span class="kw-2">&amp;mut</span> <span class="ident">pts</span>, <span class="ident">now</span>);
            <span class="ident">result</span>.<span class="ident">push</span>((<span class="ident">problem_type</span>, <span class="ident">pts</span>));
        }
        <span class="ident">result</span>
    }
}

<span class="kw">impl</span> <span class="ident">Default</span> <span class="kw">for</span> <span class="ident">Analytics</span> {
    <span class="kw">fn</span> <span class="ident">default</span>() -&gt; <span class="ident">Analytics</span> {
        <span class="ident">Analytics::new</span>(<span class="bool-val">false</span>)
    }
}

<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TripPhase</span> {
    <span class="kw">pub</span> <span class="ident">start_time</span>: <span class="ident">Time</span>,
    <span class="kw">pub</span> <span class="ident">end_time</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Time</span><span class="op">&gt;</span>,
    <span class="kw">pub</span> <span class="ident">path</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Path</span><span class="op">&gt;</span>,
    <span class="kw">pub</span> <span class="ident">has_path_req</span>: <span class="ident">bool</span>,
    <span class="kw">pub</span> <span class="ident">phase_type</span>: <span class="ident">TripPhaseType</span>,
}

<span class="doccomment">/// See https://github.com/a-b-street/abstreet/issues/85</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Serialize</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TimeSeriesCount</span><span class="op">&lt;</span><span class="ident">X</span>: <span class="ident">Ord</span> <span class="op">+</span> <span class="ident">Clone</span><span class="op">&gt;</span> {
    <span class="doccomment">/// (Road or intersection, type, hour block) -&gt; count for that hour</span>
    <span class="kw">pub</span> <span class="ident">counts</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span>(<span class="ident">X</span>, <span class="ident">AgentType</span>, <span class="ident">usize</span>), <span class="ident">usize</span><span class="op">&gt;</span>,

    <span class="doccomment">/// Very expensive to store, so it&#39;s optional. But useful to flag on to experiment with</span>
    <span class="doccomment">/// representations better than the hour count above.</span>
    <span class="kw">pub</span> <span class="ident">raw</span>: <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">AgentType</span>, <span class="ident">X</span>)<span class="op">&gt;</span>,
}

<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">X</span>: <span class="ident">Ord</span> <span class="op">+</span> <span class="ident">Clone</span><span class="op">&gt;</span> <span class="ident">TimeSeriesCount</span><span class="op">&lt;</span><span class="ident">X</span><span class="op">&gt;</span> {
    <span class="kw">fn</span> <span class="ident">new</span>() -&gt; <span class="ident">TimeSeriesCount</span><span class="op">&lt;</span><span class="ident">X</span><span class="op">&gt;</span> {
        <span class="ident">TimeSeriesCount</span> {
            <span class="ident">counts</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">raw</span>: <span class="ident">Vec::new</span>(),
        }
    }

    <span class="kw">fn</span> <span class="ident">record</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">time</span>: <span class="ident">Time</span>, <span class="ident">id</span>: <span class="ident">X</span>, <span class="ident">agent_type</span>: <span class="ident">AgentType</span>, <span class="ident">count</span>: <span class="ident">usize</span>) {
        <span class="comment">// TODO Manually change flag</span>
        <span class="kw">if</span> <span class="bool-val">false</span> {
            <span class="comment">// TODO Woo, handling transit passengers is even more expensive in this already</span>
            <span class="comment">// expensive representation...</span>
            <span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">count</span> {
                <span class="self">self</span>.<span class="ident">raw</span>.<span class="ident">push</span>((<span class="ident">time</span>, <span class="ident">agent_type</span>, <span class="ident">id</span>.<span class="ident">clone</span>()));
            }
        }

        <span class="kw-2">*</span><span class="self">self</span>
            .<span class="ident">counts</span>
            .<span class="ident">entry</span>((<span class="ident">id</span>, <span class="ident">agent_type</span>, <span class="ident">time</span>.<span class="ident">get_hours</span>()))
            .<span class="ident">or_insert</span>(<span class="number">0</span>) <span class="op">+</span><span class="op">=</span> <span class="ident">count</span>;
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">total_for</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">X</span>) -&gt; <span class="ident">usize</span> {
        <span class="self">self</span>.<span class="ident">total_for_with_agent_types</span>(<span class="ident">id</span>, <span class="ident">AgentType::all</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">total_for_with_agent_types</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">X</span>, <span class="ident">agent_types</span>: <span class="ident">BTreeSet</span><span class="op">&lt;</span><span class="ident">AgentType</span><span class="op">&gt;</span>) -&gt; <span class="ident">usize</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="number">0</span>;
        <span class="kw">for</span> <span class="ident">agent_type</span> <span class="kw">in</span> <span class="ident">agent_types</span> {
            <span class="comment">// TODO Hmm</span>
            <span class="kw">for</span> <span class="ident">hour</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">24</span> {
                <span class="ident">cnt</span> <span class="op">+</span><span class="op">=</span> <span class="self">self</span>
                    .<span class="ident">counts</span>
                    .<span class="ident">get</span>(<span class="kw-2">&amp;</span>(<span class="ident">id</span>.<span class="ident">clone</span>(), <span class="ident">agent_type</span>, <span class="ident">hour</span>))
                    .<span class="ident">cloned</span>()
                    .<span class="ident">unwrap_or</span>(<span class="number">0</span>);
            }
        }
        <span class="ident">cnt</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">total_for_by_time</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">X</span>, <span class="ident">now</span>: <span class="ident">Time</span>) -&gt; <span class="ident">usize</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="number">0</span>;
        <span class="kw">for</span> <span class="ident">agent_type</span> <span class="kw">in</span> <span class="ident">AgentType::all</span>() {
            <span class="kw">for</span> <span class="ident">hour</span> <span class="kw">in</span> <span class="number">0</span>..<span class="op">=</span><span class="ident">now</span>.<span class="ident">get_hours</span>() {
                <span class="ident">cnt</span> <span class="op">+</span><span class="op">=</span> <span class="self">self</span>
                    .<span class="ident">counts</span>
                    .<span class="ident">get</span>(<span class="kw-2">&amp;</span>(<span class="ident">id</span>.<span class="ident">clone</span>(), <span class="ident">agent_type</span>, <span class="ident">hour</span>))
                    .<span class="ident">cloned</span>()
                    .<span class="ident">unwrap_or</span>(<span class="number">0</span>);
            }
        }
        <span class="ident">cnt</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">all_total_counts</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">agent_types</span>: <span class="kw-2">&amp;</span><span class="ident">BTreeSet</span><span class="op">&lt;</span><span class="ident">AgentType</span><span class="op">&gt;</span>) -&gt; <span class="ident">Counter</span><span class="op">&lt;</span><span class="ident">X</span><span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="ident">Counter::new</span>();
        <span class="kw">for</span> ((<span class="ident">id</span>, <span class="ident">agent_type</span>, <span class="kw">_</span>), <span class="ident">value</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">counts</span> {
            <span class="kw">if</span> <span class="ident">agent_types</span>.<span class="ident">contains</span>(<span class="ident">agent_type</span>) {
                <span class="ident">cnt</span>.<span class="ident">add</span>(<span class="ident">id</span>.<span class="ident">clone</span>(), <span class="kw-2">*</span><span class="ident">value</span>);
            }
        }
        <span class="ident">cnt</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">count_per_hour</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">id</span>: <span class="ident">X</span>, <span class="ident">time</span>: <span class="ident">Time</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">AgentType</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">hour</span> <span class="op">=</span> <span class="ident">time</span>.<span class="ident">get_hours</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">results</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">for</span> <span class="ident">agent_type</span> <span class="kw">in</span> <span class="ident">AgentType::all</span>() {
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pts</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
            <span class="kw">for</span> <span class="ident">hour</span> <span class="kw">in</span> <span class="number">0</span>..<span class="op">=</span><span class="ident">hour</span> {
                <span class="kw">let</span> <span class="ident">cnt</span> <span class="op">=</span> <span class="self">self</span>
                    .<span class="ident">counts</span>
                    .<span class="ident">get</span>(<span class="kw-2">&amp;</span>(<span class="ident">id</span>.<span class="ident">clone</span>(), <span class="ident">agent_type</span>, <span class="ident">hour</span>))
                    .<span class="ident">cloned</span>()
                    .<span class="ident">unwrap_or</span>(<span class="number">0</span>);
                <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">Time::START_OF_DAY</span> <span class="op">+</span> <span class="ident">Duration::hours</span>(<span class="ident">hour</span>), <span class="ident">cnt</span>));
                <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">Time::START_OF_DAY</span> <span class="op">+</span> <span class="ident">Duration::hours</span>(<span class="ident">hour</span> <span class="op">+</span> <span class="number">1</span>), <span class="ident">cnt</span>));
            }
            <span class="ident">pts</span>.<span class="ident">pop</span>();
            <span class="ident">results</span>.<span class="ident">push</span>((<span class="ident">agent_type</span>, <span class="ident">pts</span>));
        }
        <span class="ident">results</span>
    }

    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">raw_throughput</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">now</span>: <span class="ident">Time</span>, <span class="ident">id</span>: <span class="ident">X</span>) -&gt; <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">AgentType</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span>)<span class="op">&gt;</span> {
        <span class="kw">let</span> <span class="ident">window_size</span> <span class="op">=</span> <span class="ident">Duration::hours</span>(<span class="number">1</span>);
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pts_per_type</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">AgentType</span>, <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">windows_per_type</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">AgentType</span>, <span class="ident">SlidingWindow</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> <span class="ident">agent_type</span> <span class="kw">in</span> <span class="ident">AgentType::all</span>() {
            <span class="ident">pts_per_type</span>.<span class="ident">insert</span>(<span class="ident">agent_type</span>, <span class="macro">vec!</span>[(<span class="ident">Time::START_OF_DAY</span>, <span class="number">0</span>)]);
            <span class="ident">windows_per_type</span>.<span class="ident">insert</span>(<span class="ident">agent_type</span>, <span class="ident">SlidingWindow::new</span>(<span class="ident">window_size</span>));
        }

        <span class="kw">for</span> (<span class="ident">t</span>, <span class="ident">agent_type</span>, <span class="ident">x</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">raw</span> {
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">x</span> <span class="op">!</span><span class="op">=</span> <span class="ident">id</span> {
                <span class="kw">continue</span>;
            }
            <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">t</span> <span class="op">&gt;</span> <span class="ident">now</span> {
                <span class="kw">break</span>;
            }

            <span class="kw">let</span> <span class="ident">count</span> <span class="op">=</span> <span class="ident">windows_per_type</span>.<span class="ident">get_mut</span>(<span class="ident">agent_type</span>).<span class="ident">unwrap</span>().<span class="ident">add</span>(<span class="kw-2">*</span><span class="ident">t</span>);
            <span class="ident">pts_per_type</span>.<span class="ident">get_mut</span>(<span class="ident">agent_type</span>).<span class="ident">unwrap</span>().<span class="ident">push</span>((<span class="kw-2">*</span><span class="ident">t</span>, <span class="ident">count</span>));
        }

        <span class="kw">for</span> (<span class="ident">agent_type</span>, <span class="ident">pts</span>) <span class="kw">in</span> <span class="ident">pts_per_type</span>.<span class="ident">iter_mut</span>() {
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">window</span> <span class="op">=</span> <span class="ident">windows_per_type</span>.<span class="ident">remove</span>(<span class="ident">agent_type</span>).<span class="ident">unwrap</span>();

            <span class="ident">window</span>.<span class="ident">close_off_pts</span>(<span class="ident">pts</span>, <span class="ident">now</span>);
        }

        <span class="ident">pts_per_type</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>()
    }

    <span class="doccomment">/// Returns the contents of a CSV file</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">export_csv</span><span class="op">&lt;</span><span class="ident">F</span>: <span class="ident">Fn</span>(<span class="kw-2">&amp;</span><span class="ident">X</span>) -&gt; <span class="ident">usize</span><span class="op">&gt;</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">extract_id</span>: <span class="ident">F</span>) -&gt; <span class="ident">String</span> {
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">out</span> <span class="op">=</span> <span class="ident">String::new</span>();
        <span class="macro">writeln!</span>(<span class="ident">out</span>, <span class="string">&quot;id,agent_type,hour,count&quot;</span>).<span class="ident">unwrap</span>();
        <span class="kw">for</span> ((<span class="ident">id</span>, <span class="ident">agent_type</span>, <span class="ident">hour</span>), <span class="ident">count</span>) <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">counts</span> {
            <span class="macro">writeln!</span>(
                <span class="ident">out</span>,
                <span class="string">&quot;{},{:?},{},{}&quot;</span>,
                <span class="ident">extract_id</span>(<span class="ident">id</span>),
                <span class="ident">agent_type</span>,
                <span class="ident">hour</span>,
                <span class="ident">count</span>
            )
            .<span class="ident">unwrap</span>();
        }
        <span class="ident">out</span>
    }
}

<span class="doccomment">/// A sliding window, used to count something over time</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">SlidingWindow</span> {
    <span class="ident">times</span>: <span class="ident">VecDeque</span><span class="op">&lt;</span><span class="ident">Time</span><span class="op">&gt;</span>,
    <span class="ident">window_size</span>: <span class="ident">Duration</span>,
}

<span class="kw">impl</span> <span class="ident">SlidingWindow</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">window_size</span>: <span class="ident">Duration</span>) -&gt; <span class="ident">SlidingWindow</span> {
        <span class="ident">SlidingWindow</span> {
            <span class="ident">times</span>: <span class="ident">VecDeque::new</span>(),
            <span class="ident">window_size</span>,
        }
    }

    <span class="doccomment">/// Returns the count at time</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">add</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">time</span>: <span class="ident">Time</span>) -&gt; <span class="ident">usize</span> {
        <span class="self">self</span>.<span class="ident">times</span>.<span class="ident">push_back</span>(<span class="ident">time</span>);
        <span class="self">self</span>.<span class="ident">count</span>(<span class="ident">time</span>)
    }

    <span class="doccomment">/// Grab the count at this time, but don&#39;t add a new time</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">count</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">end</span>: <span class="ident">Time</span>) -&gt; <span class="ident">usize</span> {
        <span class="kw">while</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">times</span>.<span class="ident">is_empty</span>() <span class="op">&amp;&amp;</span> <span class="ident">end</span> <span class="op">-</span> <span class="kw-2">*</span><span class="self">self</span>.<span class="ident">times</span>.<span class="ident">front</span>().<span class="ident">unwrap</span>() <span class="op">&gt;</span> <span class="self">self</span>.<span class="ident">window_size</span> {
            <span class="self">self</span>.<span class="ident">times</span>.<span class="ident">pop_front</span>();
        }
        <span class="self">self</span>.<span class="ident">times</span>.<span class="ident">len</span>()
    }

    <span class="doccomment">/// Ensure the points cover up to `end_time`. The last event may occur before then, and it&#39;s</span>
    <span class="doccomment">/// necessary to draw more points to show the count drop off.</span>
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">close_off_pts</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>, <span class="ident">pts</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Vec</span><span class="op">&lt;</span>(<span class="ident">Time</span>, <span class="ident">usize</span>)<span class="op">&gt;</span>, <span class="ident">end_time</span>: <span class="ident">Time</span>) {
        <span class="comment">// Add a drop-off after window_size (+ a little epsilon!)</span>
        <span class="kw">let</span> <span class="ident">t</span> <span class="op">=</span> (<span class="ident">pts</span>.<span class="ident">last</span>().<span class="ident">unwrap</span>().<span class="number">0</span> <span class="op">+</span> <span class="self">self</span>.<span class="ident">window_size</span> <span class="op">+</span> <span class="ident">Duration::seconds</span>(<span class="number">0.1</span>)).<span class="ident">min</span>(<span class="ident">end_time</span>);
        <span class="kw">if</span> <span class="ident">pts</span>.<span class="ident">last</span>().<span class="ident">unwrap</span>().<span class="number">0</span> <span class="op">!</span><span class="op">=</span> <span class="ident">t</span> {
            <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">t</span>, <span class="self">self</span>.<span class="ident">count</span>(<span class="ident">t</span>)));
        }

        <span class="kw">if</span> <span class="ident">pts</span>.<span class="ident">last</span>().<span class="ident">unwrap</span>().<span class="number">0</span> <span class="op">!</span><span class="op">=</span> <span class="ident">end_time</span> {
            <span class="ident">pts</span>.<span class="ident">push</span>((<span class="ident">end_time</span>, <span class="self">self</span>.<span class="ident">count</span>(<span class="ident">end_time</span>)));
        }
    }
}
</code></pre></div>
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