<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `map_model/src/make/traffic_signals/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="stylesheet" type="text/css" href="../../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../../ayu.css" disabled ><script id="default-settings"></script><script src="../../../../storage.js"></script><script src="../../../../crates.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="icon" 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class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../../../settings.html" title="settings"><img src="../../../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span> <span id="2"> 2</span> <span id="3"> 3</span> <span id="4"> 4</span> <span id="5"> 5</span> <span id="6"> 6</span> <span id="7"> 7</span> <span id="8"> 8</span> <span id="9"> 9</span> <span id="10"> 10</span> <span id="11"> 11</span> <span id="12"> 12</span> <span id="13"> 13</span> <span id="14"> 14</span> <span id="15"> 15</span> <span 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id="438">438</span> <span id="439">439</span> <span id="440">440</span> <span id="441">441</span> <span id="442">442</span> <span id="443">443</span> <span id="444">444</span> <span id="445">445</span> <span id="446">446</span> <span id="447">447</span> <span id="448">448</span> <span id="449">449</span> <span id="450">450</span> <span id="451">451</span> <span id="452">452</span> <span id="453">453</span> <span id="454">454</span> <span id="455">455</span> <span id="456">456</span> <span id="457">457</span> <span id="458">458</span> <span id="459">459</span> <span id="460">460</span> <span id="461">461</span> <span id="462">462</span> <span id="463">463</span> <span id="464">464</span> <span id="465">465</span> <span id="466">466</span> <span id="467">467</span> <span id="468">468</span> <span id="469">469</span> <span id="470">470</span> <span id="471">471</span> <span id="472">472</span> <span id="473">473</span> <span id="474">474</span> <span id="475">475</span> <span id="476">476</span> <span id="477">477</span> <span id="478">478</span> <span id="479">479</span> <span id="480">480</span> <span id="481">481</span> <span id="482">482</span> <span id="483">483</span> <span id="484">484</span> <span id="485">485</span> <span id="486">486</span> <span id="487">487</span> <span id="488">488</span> <span id="489">489</span> <span id="490">490</span> <span id="491">491</span> <span id="492">492</span> </pre><pre class="rust"> <span class="doccomment">//! The various traffic signal generators live in the traffic signal module. Eventually, we</span> <span class="doccomment">//! might want to move to a trait. For now, there's a single make_traffic_signal static method</span> <span class="doccomment">//! in each generator file, which is called to generate a traffic signal of a particular flavor.</span> <span class="doccomment">//!</span> <span class="doccomment">//! For example, lagging_green.rs contains a one public fn:</span> <span class="doccomment">//! pub fn make_traffic_signal(map: &Map, i: IntersectionID)->Option<ControlTrafficSignal></span> <span class="kw">use</span> <span class="ident">std::collections</span>::{<span class="ident">BTreeSet</span>, <span class="ident">HashSet</span>}; <span class="kw">use</span> <span class="kw">crate</span>::{ <span class="ident">ControlTrafficSignal</span>, <span class="ident">DrivingSide</span>, <span class="ident">Intersection</span>, <span class="ident">IntersectionCluster</span>, <span class="ident">IntersectionID</span>, <span class="ident">Map</span>, <span class="ident">MovementID</span>, <span class="ident">RoadID</span>, <span class="ident">Stage</span>, <span class="ident">StageType</span>, <span class="ident">TurnPriority</span>, <span class="ident">TurnType</span>, }; <span class="kw">use</span> <span class="ident">geom::Duration</span>; <span class="kw">mod</span> <span class="ident">lagging_green</span>; <span class="doccomment">/// Applies a bunch of heuristics to a single intersection, returning the valid results in</span> <span class="doccomment">/// best-first order. The signal configuration is only based on the roads connected to the</span> <span class="doccomment">/// intersection.</span> <span class="doccomment">///</span> <span class="doccomment">/// If `enforce_manual_signals` is true, then any data from the `traffic_signal_data` crate that</span> <span class="doccomment">/// matches the map will be validated against the current map. If the config is out-of-date, this</span> <span class="doccomment">/// method will panic, so that whoever is running the importer can immediately fix the config.</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_possible_policies</span>( <span class="ident">map</span>: <span class="kw-2">&</span><span class="ident">Map</span>, <span class="ident">id</span>: <span class="ident">IntersectionID</span>, <span class="ident">enforce_manual_signals</span>: <span class="ident">bool</span>, ) <span class="op">-</span><span class="op">></span> <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">String</span>, <span class="ident">ControlTrafficSignal</span>)<span class="op">></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">let</span> <span class="ident">i</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_i</span>(<span class="ident">id</span>); <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">raw</span>) <span class="op">=</span> <span class="ident">traffic_signal_data::load_all_data</span>() .<span class="ident">unwrap</span>() .<span class="ident">remove</span>(<span class="kw-2">&</span><span class="ident">i</span>.<span class="ident">orig_id</span>.<span class="number">0</span>) { <span class="kw">match</span> <span class="ident">ControlTrafficSignal::import</span>(<span class="ident">raw</span>, <span class="ident">id</span>, <span class="ident">map</span>).<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">ts</span><span class="op">|</span> <span class="ident">ts</span>.<span class="ident">validate</span>(<span class="ident">i</span>).<span class="ident">map</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> <span class="ident">ts</span>)) { <span class="prelude-val">Ok</span>(<span class="ident">ts</span>) <span class="op">=</span><span class="op">></span> { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"manually specified settings"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span><span class="op">></span> { <span class="kw">if</span> <span class="ident">enforce_manual_signals</span> { <span class="macro">panic!</span>( <span class="string">"traffic_signal_data data for {} ({}) out of date, go update it: {}"</span>, <span class="ident">i</span>.<span class="ident">orig_id</span>, <span class="ident">i</span>.<span class="ident">name</span>(<span class="prelude-val">None</span>, <span class="ident">map</span>), <span class="ident">err</span> ); } <span class="kw">else</span> { <span class="macro">warn!</span>( <span class="string">"traffic_signal_data data for {} no longer valid with map edits: {}"</span>, <span class="ident">i</span>.<span class="ident">orig_id</span>, <span class="ident">err</span> ); } } } } <span class="comment">// As long as we're using silly heuristics for these by default, prefer shorter cycle</span> <span class="comment">// length.</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ts</span>) <span class="op">=</span> <span class="ident">four_way_two_stage</span>(<span class="ident">map</span>, <span class="ident">i</span>) { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"two-stage"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ts</span>) <span class="op">=</span> <span class="ident">three_way</span>(<span class="ident">map</span>, <span class="ident">i</span>) { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"three-stage"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ts</span>) <span class="op">=</span> <span class="ident">four_way_four_stage</span>(<span class="ident">map</span>, <span class="ident">i</span>) { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"four-stage"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ts</span>) <span class="op">=</span> <span class="ident">half_signal</span>(<span class="ident">i</span>) { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"half signal (2 roads with crosswalk)"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ts</span>) <span class="op">=</span> <span class="ident">degenerate</span>(<span class="ident">map</span>, <span class="ident">i</span>) { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"degenerate (2 roads)"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ts</span>) <span class="op">=</span> <span class="ident">lagging_green::make_traffic_signal</span>(<span class="ident">map</span>, <span class="ident">i</span>) { <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"lagging green"</span>.<span class="ident">to_string</span>(), <span class="ident">ts</span>)); } <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"stage per road"</span>.<span class="ident">to_string</span>(), <span class="ident">stage_per_road</span>(<span class="ident">map</span>, <span class="ident">i</span>))); <span class="ident">results</span>.<span class="ident">push</span>((<span class="string">"arbitrary assignment"</span>.<span class="ident">to_string</span>(), <span class="ident">greedy_assignment</span>(<span class="ident">i</span>))); <span class="ident">results</span>.<span class="ident">push</span>(( <span class="string">"all walk, then free-for-all yield"</span>.<span class="ident">to_string</span>(), <span class="ident">all_walk_all_yield</span>(<span class="ident">i</span>), )); <span class="comment">// Make sure all possible policies have a minimum crosswalk time enforced</span> <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">signal</span>) <span class="kw">in</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">results</span> { <span class="kw">for</span> <span class="ident">stage</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">signal</span>.<span class="ident">stages</span> { <span class="kw">let</span> <span class="ident">crosswalks</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">MovementID</span><span class="op">></span> <span class="op">=</span> <span class="ident">stage</span> .<span class="ident">protected_movements</span> .<span class="ident">iter</span>() .<span class="ident">filter</span>(<span class="op">|</span><span class="ident">id</span><span class="op">|</span> <span class="ident">id</span>.<span class="ident">crosswalk</span>) .<span class="ident">cloned</span>() .<span class="ident">collect</span>(); <span class="kw">for</span> <span class="ident">id</span> <span class="kw">in</span> <span class="ident">crosswalks</span> { <span class="ident">stage</span>.<span class="ident">enforce_minimum_crosswalk_time</span>(<span class="kw-2">&</span><span class="ident">i</span>.<span class="ident">movements</span>[<span class="kw-2">&</span><span class="ident">id</span>]); } } } <span class="ident">results</span>.<span class="ident">retain</span>(<span class="op">|</span><span class="ident">pair</span><span class="op">|</span> <span class="ident">pair</span>.<span class="number">1</span>.<span class="ident">validate</span>(<span class="ident">i</span>).<span class="ident">is_ok</span>()); <span class="ident">results</span> } <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">id</span>: <span class="ident">IntersectionID</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ControlTrafficSignal</span> { <span class="ident">ControlTrafficSignal</span> { <span class="ident">id</span>, <span class="ident">stages</span>: <span class="ident">Vec::new</span>(), <span class="ident">offset</span>: <span class="ident">Duration::ZERO</span>, } } <span class="kw">fn</span> <span class="ident">greedy_assignment</span>(<span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ControlTrafficSignal</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="comment">// Greedily partition movements into stages that only have protected movements.</span> <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">remaining_movements</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">MovementID</span><span class="op">></span> <span class="op">=</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">keys</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">current_stage</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">loop</span> { <span class="kw">let</span> <span class="ident">add</span> <span class="op">=</span> <span class="ident">remaining_movements</span> .<span class="ident">iter</span>() .<span class="ident">position</span>(<span class="op">|</span><span class="kw-2">&</span><span class="ident">g</span><span class="op">|</span> <span class="ident">current_stage</span>.<span class="ident">could_be_protected</span>(<span class="ident">g</span>, <span class="ident">i</span>)); <span class="kw">match</span> <span class="ident">add</span> { <span class="prelude-val">Some</span>(<span class="ident">idx</span>) <span class="op">=</span><span class="op">></span> { <span class="ident">current_stage</span> .<span class="ident">protected_movements</span> .<span class="ident">insert</span>(<span class="ident">remaining_movements</span>.<span class="ident">remove</span>(<span class="ident">idx</span>)); } <span class="prelude-val">None</span> <span class="op">=</span><span class="op">></span> { <span class="macro">assert!</span>(<span class="op">!</span><span class="ident">current_stage</span>.<span class="ident">protected_movements</span>.<span class="ident">is_empty</span>()); <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">push</span>(<span class="ident">current_stage</span>); <span class="ident">current_stage</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">if</span> <span class="ident">remaining_movements</span>.<span class="ident">is_empty</span>() { <span class="kw">break</span>; } } } } <span class="ident">expand_all_stages</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ts</span>, <span class="ident">i</span>); <span class="ident">ts</span> } <span class="kw">fn</span> <span class="ident">degenerate</span>(<span class="ident">map</span>: <span class="kw-2">&</span><span class="ident">Map</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ControlTrafficSignal</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">roads</span> <span class="op">=</span> <span class="ident">i</span>.<span class="ident">get_sorted_incoming_roads</span>(<span class="ident">map</span>); <span class="kw">if</span> <span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">!</span><span class="op">=</span> <span class="number">2</span> { <span class="kw">return</span> <span class="prelude-val">None</span>; } <span class="kw">let</span> (<span class="ident">r1</span>, <span class="ident">r2</span>) <span class="op">=</span> (<span class="ident">roads</span>[<span class="number">0</span>], <span class="ident">roads</span>[<span class="number">1</span>]); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="ident">make_stages</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ts</span>, <span class="ident">map</span>.<span class="ident">config</span>.<span class="ident">driving_side</span>, <span class="ident">i</span>, <span class="macro">vec!</span>[<span class="macro">vec!</span>[(<span class="macro">vec!</span>[<span class="ident">r1</span>, <span class="ident">r2</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>)]], ); <span class="prelude-val">Some</span>(<span class="ident">ts</span>) } <span class="kw">fn</span> <span class="ident">half_signal</span>(<span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ControlTrafficSignal</span><span class="op">></span> { <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">!</span><span class="op">=</span> <span class="number">2</span> { <span class="kw">return</span> <span class="prelude-val">None</span>; } <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">vehicle_stage</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ped_stage</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">for</span> (<span class="ident">id</span>, <span class="ident">movement</span>) <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">i</span>.<span class="ident">movements</span> { <span class="kw">if</span> <span class="ident">id</span>.<span class="ident">crosswalk</span> { <span class="ident">ped_stage</span>.<span class="ident">edit_movement</span>(<span class="ident">movement</span>, <span class="ident">TurnPriority::Protected</span>); } <span class="kw">else</span> { <span class="ident">vehicle_stage</span>.<span class="ident">edit_movement</span>(<span class="ident">movement</span>, <span class="ident">TurnPriority::Protected</span>); } } <span class="ident">vehicle_stage</span>.<span class="ident">stage_type</span> <span class="op">=</span> <span class="ident">StageType::Fixed</span>(<span class="ident">Duration::minutes</span>(<span class="number">1</span>)); <span class="ident">ped_stage</span>.<span class="ident">stage_type</span> <span class="op">=</span> <span class="ident">StageType::Fixed</span>(<span class="ident">Duration::seconds</span>(<span class="number">10.0</span>)); <span class="ident">ts</span>.<span class="ident">stages</span> <span class="op">=</span> <span class="macro">vec!</span>[<span class="ident">vehicle_stage</span>, <span class="ident">ped_stage</span>]; <span class="prelude-val">Some</span>(<span class="ident">ts</span>) } <span class="kw">fn</span> <span class="ident">three_way</span>(<span class="ident">map</span>: <span class="kw-2">&</span><span class="ident">Map</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ControlTrafficSignal</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">roads</span> <span class="op">=</span> <span class="ident">i</span>.<span class="ident">get_sorted_incoming_roads</span>(<span class="ident">map</span>); <span class="kw">if</span> <span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">!</span><span class="op">=</span> <span class="number">3</span> { <span class="kw">return</span> <span class="prelude-val">None</span>; } <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="comment">// Picture a T intersection. Use turn angles to figure out the "main" two roads.</span> <span class="kw">let</span> <span class="ident">straight</span> <span class="op">=</span> <span class="ident">i</span> .<span class="ident">movements</span> .<span class="ident">values</span>() .<span class="ident">find</span>(<span class="op">|</span><span class="ident">g</span><span class="op">|</span> <span class="ident">g</span>.<span class="ident">turn_type</span> <span class="op">=</span><span class="op">=</span> <span class="ident">TurnType::Straight</span>)<span class="question-mark">?</span>; <span class="kw">let</span> (<span class="ident">north</span>, <span class="ident">south</span>) <span class="op">=</span> (<span class="ident">straight</span>.<span class="ident">id</span>.<span class="ident">from</span>.<span class="ident">id</span>, <span class="ident">straight</span>.<span class="ident">id</span>.<span class="ident">to</span>.<span class="ident">id</span>); <span class="kw">let</span> <span class="ident">east</span> <span class="op">=</span> <span class="ident">roads</span> .<span class="ident">into_iter</span>() .<span class="ident">find</span>(<span class="op">|</span><span class="ident">r</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">r</span> <span class="op">!</span><span class="op">=</span> <span class="ident">north</span> <span class="op">&&</span> <span class="kw-2">*</span><span class="ident">r</span> <span class="op">!</span><span class="op">=</span> <span class="ident">south</span>) .<span class="ident">unwrap</span>(); <span class="comment">// Two-stage with no protected lefts, right turn on red, turning cars yield to peds</span> <span class="ident">make_stages</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ts</span>, <span class="ident">map</span>.<span class="ident">config</span>.<span class="ident">driving_side</span>, <span class="ident">i</span>, <span class="macro">vec!</span>[ <span class="macro">vec!</span>[ (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Left</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>], <span class="ident">TurnType::Crosswalk</span>, <span class="ident">PROTECTED</span>), ], <span class="macro">vec!</span>[ (<span class="macro">vec!</span>[<span class="ident">east</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>], <span class="ident">TurnType::Left</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Crosswalk</span>, <span class="ident">PROTECTED</span>), ], ], ); <span class="prelude-val">Some</span>(<span class="ident">ts</span>) } <span class="kw">fn</span> <span class="ident">four_way_four_stage</span>(<span class="ident">map</span>: <span class="kw-2">&</span><span class="ident">Map</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ControlTrafficSignal</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">roads</span> <span class="op">=</span> <span class="ident">i</span>.<span class="ident">get_sorted_incoming_roads</span>(<span class="ident">map</span>); <span class="kw">if</span> <span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">!</span><span class="op">=</span> <span class="number">4</span> { <span class="kw">return</span> <span class="prelude-val">None</span>; } <span class="comment">// Just to refer to these easily, label with directions. Imagine an axis-aligned four-way.</span> <span class="kw">let</span> (<span class="ident">north</span>, <span class="ident">west</span>, <span class="ident">south</span>, <span class="ident">east</span>) <span class="op">=</span> (<span class="ident">roads</span>[<span class="number">0</span>], <span class="ident">roads</span>[<span class="number">1</span>], <span class="ident">roads</span>[<span class="number">2</span>], <span class="ident">roads</span>[<span class="number">3</span>]); <span class="comment">// Four-stage with protected lefts, right turn on red (except for the protected lefts),</span> <span class="comment">// turning cars yield to peds</span> <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="ident">make_stages</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ts</span>, <span class="ident">map</span>.<span class="ident">config</span>.<span class="ident">driving_side</span>, <span class="ident">i</span>, <span class="macro">vec!</span>[ <span class="macro">vec!</span>[ (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), ], <span class="macro">vec!</span>[(<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Left</span>, <span class="ident">PROTECTED</span>)], <span class="macro">vec!</span>[ (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), ], <span class="macro">vec!</span>[(<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Left</span>, <span class="ident">PROTECTED</span>)], ], ); <span class="prelude-val">Some</span>(<span class="ident">ts</span>) } <span class="kw">fn</span> <span class="ident">four_way_two_stage</span>(<span class="ident">map</span>: <span class="kw-2">&</span><span class="ident">Map</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ControlTrafficSignal</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">roads</span> <span class="op">=</span> <span class="ident">i</span>.<span class="ident">get_sorted_incoming_roads</span>(<span class="ident">map</span>); <span class="kw">if</span> <span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">!</span><span class="op">=</span> <span class="number">4</span> { <span class="kw">return</span> <span class="prelude-val">None</span>; } <span class="comment">// Just to refer to these easily, label with directions. Imagine an axis-aligned four-way.</span> <span class="kw">let</span> (<span class="ident">north</span>, <span class="ident">west</span>, <span class="ident">south</span>, <span class="ident">east</span>) <span class="op">=</span> (<span class="ident">roads</span>[<span class="number">0</span>], <span class="ident">roads</span>[<span class="number">1</span>], <span class="ident">roads</span>[<span class="number">2</span>], <span class="ident">roads</span>[<span class="number">3</span>]); <span class="comment">// Two-stage with no protected lefts, right turn on red, turning cars yielding to peds</span> <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="ident">make_stages</span>( <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ts</span>, <span class="ident">map</span>.<span class="ident">config</span>.<span class="ident">driving_side</span>, <span class="ident">i</span>, <span class="macro">vec!</span>[ <span class="macro">vec!</span>[ (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Left</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), ], <span class="macro">vec!</span>[ (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Straight</span>, <span class="ident">PROTECTED</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">east</span>, <span class="ident">west</span>], <span class="ident">TurnType::Left</span>, <span class="ident">YIELD</span>), (<span class="macro">vec!</span>[<span class="ident">north</span>, <span class="ident">south</span>], <span class="ident">TurnType::Right</span>, <span class="ident">YIELD</span>), ], ], ); <span class="prelude-val">Some</span>(<span class="ident">ts</span>) } <span class="kw">fn</span> <span class="ident">all_walk_all_yield</span>(<span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ControlTrafficSignal</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">all_walk</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">all_yield</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">for</span> <span class="ident">movement</span> <span class="kw">in</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">values</span>() { <span class="kw">match</span> <span class="ident">movement</span>.<span class="ident">turn_type</span> { <span class="ident">TurnType::Crosswalk</span> <span class="op">=</span><span class="op">></span> { <span class="ident">all_walk</span>.<span class="ident">protected_movements</span>.<span class="ident">insert</span>(<span class="ident">movement</span>.<span class="ident">id</span>); } <span class="kw">_</span> <span class="op">=</span><span class="op">></span> { <span class="ident">all_yield</span>.<span class="ident">yield_movements</span>.<span class="ident">insert</span>(<span class="ident">movement</span>.<span class="ident">id</span>); } } } <span class="ident">ts</span>.<span class="ident">stages</span> <span class="op">=</span> <span class="macro">vec!</span>[<span class="ident">all_walk</span>, <span class="ident">all_yield</span>]; <span class="ident">ts</span> } <span class="kw">fn</span> <span class="ident">stage_per_road</span>(<span class="ident">map</span>: <span class="kw-2">&</span><span class="ident">Map</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) <span class="op">-</span><span class="op">></span> <span class="ident">ControlTrafficSignal</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ts</span> <span class="op">=</span> <span class="ident">new</span>(<span class="ident">i</span>.<span class="ident">id</span>); <span class="kw">let</span> <span class="ident">sorted_roads</span> <span class="op">=</span> <span class="ident">i</span>.<span class="ident">get_roads_sorted_by_incoming_angle</span>(<span class="ident">map</span>); <span class="kw">for</span> <span class="ident">idx</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">sorted_roads</span>.<span class="ident">len</span>() { <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">sorted_roads</span>[<span class="ident">idx</span>]; <span class="kw">let</span> <span class="ident">adj1</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">abstutil::wraparound_get</span>(<span class="kw-2">&</span><span class="ident">sorted_roads</span>, (<span class="ident">idx</span> <span class="kw">as</span> <span class="ident">isize</span>) <span class="op">-</span> <span class="number">1</span>); <span class="kw">let</span> <span class="ident">adj2</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">abstutil::wraparound_get</span>(<span class="kw-2">&</span><span class="ident">sorted_roads</span>, (<span class="ident">idx</span> <span class="kw">as</span> <span class="ident">isize</span>) <span class="op">+</span> <span class="number">1</span>); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">stage</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">for</span> <span class="ident">movement</span> <span class="kw">in</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">values</span>() { <span class="kw">if</span> <span class="ident">movement</span>.<span class="ident">turn_type</span> <span class="op">=</span><span class="op">=</span> <span class="ident">TurnType::Crosswalk</span> { <span class="kw">if</span> <span class="ident">movement</span>.<span class="ident">id</span>.<span class="ident">from</span>.<span class="ident">id</span> <span class="op">=</span><span class="op">=</span> <span class="ident">adj1</span> <span class="op">|</span><span class="op">|</span> <span class="ident">movement</span>.<span class="ident">id</span>.<span class="ident">from</span>.<span class="ident">id</span> <span class="op">=</span><span class="op">=</span> <span class="ident">adj2</span> { <span class="ident">stage</span>.<span class="ident">protected_movements</span>.<span class="ident">insert</span>(<span class="ident">movement</span>.<span class="ident">id</span>); } } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">movement</span>.<span class="ident">id</span>.<span class="ident">from</span>.<span class="ident">id</span> <span class="op">=</span><span class="op">=</span> <span class="ident">r</span> { <span class="ident">stage</span>.<span class="ident">yield_movements</span>.<span class="ident">insert</span>(<span class="ident">movement</span>.<span class="ident">id</span>); } } <span class="comment">// Might have a one-way outgoing road. Skip it.</span> <span class="kw">if</span> <span class="op">!</span><span class="ident">stage</span>.<span class="ident">yield_movements</span>.<span class="ident">is_empty</span>() { <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">push</span>(<span class="ident">stage</span>); } } <span class="ident">ts</span> } <span class="comment">// Add all possible protected movements to existing stages.</span> <span class="kw">fn</span> <span class="ident">expand_all_stages</span>(<span class="ident">ts</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ControlTrafficSignal</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>) { <span class="kw">for</span> <span class="ident">stage</span> <span class="kw">in</span> <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">iter_mut</span>() { <span class="kw">for</span> <span class="ident">g</span> <span class="kw">in</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">keys</span>() { <span class="kw">if</span> <span class="ident">stage</span>.<span class="ident">could_be_protected</span>(<span class="kw-2">*</span><span class="ident">g</span>, <span class="ident">i</span>) { <span class="ident">stage</span>.<span class="ident">protected_movements</span>.<span class="ident">insert</span>(<span class="kw-2">*</span><span class="ident">g</span>); } } } } <span class="kw">const</span> <span class="ident">PROTECTED</span>: <span class="ident">bool</span> <span class="op">=</span> <span class="bool-val">true</span>; <span class="kw">const</span> <span class="ident">YIELD</span>: <span class="ident">bool</span> <span class="op">=</span> <span class="bool-val">false</span>; <span class="kw">fn</span> <span class="ident">make_stages</span>( <span class="ident">ts</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">ControlTrafficSignal</span>, <span class="ident">driving_side</span>: <span class="ident">DrivingSide</span>, <span class="ident">i</span>: <span class="kw-2">&</span><span class="ident">Intersection</span>, <span class="ident">stage_specs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Vec</span><span class="op"><</span>(<span class="ident">Vec</span><span class="op"><</span><span class="ident">RoadID</span><span class="op">></span>, <span class="ident">TurnType</span>, <span class="ident">bool</span>)<span class="op">></span><span class="op">></span>, ) { <span class="kw">for</span> <span class="ident">specs</span> <span class="kw">in</span> <span class="ident">stage_specs</span> { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">stage</span> <span class="op">=</span> <span class="ident">Stage::new</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">explicit_crosswalks</span> <span class="op">=</span> <span class="bool-val">false</span>; <span class="kw">for</span> (<span class="ident">roads</span>, <span class="kw-2">mut</span> <span class="ident">turn_type</span>, <span class="ident">protected</span>) <span class="kw">in</span> <span class="ident">specs</span>.<span class="ident">into_iter</span>() { <span class="comment">// The heuristics are written assuming right turns are easy and lefts are hard, so</span> <span class="comment">// invert in the UK.</span> <span class="kw">if</span> <span class="ident">driving_side</span> <span class="op">=</span><span class="op">=</span> <span class="ident">DrivingSide::Left</span> { <span class="kw">if</span> <span class="ident">turn_type</span> <span class="op">=</span><span class="op">=</span> <span class="ident">TurnType::Right</span> { <span class="ident">turn_type</span> <span class="op">=</span> <span class="ident">TurnType::Left</span>; } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">turn_type</span> <span class="op">=</span><span class="op">=</span> <span class="ident">TurnType::Left</span> { <span class="ident">turn_type</span> <span class="op">=</span> <span class="ident">TurnType::Right</span>; } } <span class="kw">if</span> <span class="ident">turn_type</span> <span class="op">=</span><span class="op">=</span> <span class="ident">TurnType::Crosswalk</span> { <span class="ident">explicit_crosswalks</span> <span class="op">=</span> <span class="bool-val">true</span>; } <span class="kw">for</span> <span class="ident">movement</span> <span class="kw">in</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">values</span>() { <span class="kw">if</span> <span class="op">!</span><span class="ident">roads</span>.<span class="ident">contains</span>(<span class="kw-2">&</span><span class="ident">movement</span>.<span class="ident">id</span>.<span class="ident">from</span>.<span class="ident">id</span>) <span class="op">|</span><span class="op">|</span> <span class="ident">turn_type</span> <span class="op">!</span><span class="op">=</span> <span class="ident">movement</span>.<span class="ident">turn_type</span> { <span class="kw">continue</span>; } <span class="ident">stage</span>.<span class="ident">edit_movement</span>( <span class="ident">movement</span>, <span class="kw">if</span> <span class="ident">protected</span> { <span class="ident">TurnPriority::Protected</span> } <span class="kw">else</span> { <span class="ident">TurnPriority::Yield</span> }, ); } } <span class="comment">// If the specification didn't explicitly include crosswalks, add them in here. Some</span> <span class="comment">// crosswalks stretch across multiple roads when some parts of a road are missing a</span> <span class="comment">// sidewalk, so it's hard to specify them in all cases.</span> <span class="kw">if</span> <span class="op">!</span><span class="ident">explicit_crosswalks</span> { <span class="comment">// TODO If a stage has no protected turns at all, this adds the crosswalk to multiple</span> <span class="comment">// stages in a pretty weird way. It'd be better to add to just one stage -- the one</span> <span class="comment">// with the least conflicting yields.</span> <span class="kw">for</span> <span class="ident">movement</span> <span class="kw">in</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">values</span>() { <span class="kw">if</span> <span class="ident">movement</span>.<span class="ident">turn_type</span> <span class="op">=</span><span class="op">=</span> <span class="ident">TurnType::Crosswalk</span> <span class="op">&&</span> <span class="ident">stage</span>.<span class="ident">could_be_protected</span>(<span class="ident">movement</span>.<span class="ident">id</span>, <span class="ident">i</span>) { <span class="ident">stage</span>.<span class="ident">edit_movement</span>(<span class="ident">movement</span>, <span class="ident">TurnPriority::Protected</span>); } } } <span class="comment">// Filter out empty stages if they happen.</span> <span class="kw">if</span> <span class="ident">stage</span>.<span class="ident">protected_movements</span>.<span class="ident">is_empty</span>() <span class="op">&&</span> <span class="ident">stage</span>.<span class="ident">yield_movements</span>.<span class="ident">is_empty</span>() { <span class="kw">continue</span>; } <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">push</span>(<span class="ident">stage</span>); } <span class="kw">if</span> <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">len</span>() <span class="op">></span> <span class="number">1</span> { <span class="comment">// At intersections of one-ways like Terry and Denny, we could get away with a single stage.</span> <span class="comment">// Really weak form of this now, just collapsing the one smallest stage.</span> <span class="kw">let</span> <span class="ident">smallest</span> <span class="op">=</span> <span class="ident">ts</span> .<span class="ident">stages</span> .<span class="ident">iter</span>() .<span class="ident">min_by_key</span>(<span class="op">|</span><span class="ident">p</span><span class="op">|</span> <span class="ident">p</span>.<span class="ident">protected_movements</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="ident">p</span>.<span class="ident">yield_movements</span>.<span class="ident">len</span>()) .<span class="ident">cloned</span>() .<span class="ident">unwrap</span>(); <span class="kw">if</span> <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">iter</span>().<span class="ident">any</span>(<span class="op">|</span><span class="ident">p</span><span class="op">|</span> { <span class="ident">p</span> <span class="op">!</span><span class="op">=</span> <span class="kw-2">&</span><span class="ident">smallest</span> <span class="op">&&</span> <span class="ident">smallest</span> .<span class="ident">protected_movements</span> .<span class="ident">is_subset</span>(<span class="kw-2">&</span><span class="ident">p</span>.<span class="ident">protected_movements</span>) <span class="op">&&</span> <span class="ident">smallest</span>.<span class="ident">yield_movements</span>.<span class="ident">is_subset</span>(<span class="kw-2">&</span><span class="ident">p</span>.<span class="ident">yield_movements</span>) }) { <span class="ident">ts</span>.<span class="ident">stages</span>.<span class="ident">retain</span>(<span class="op">|</span><span class="ident">p</span><span class="op">|</span> <span class="ident">p</span> <span class="op">!</span><span class="op">=</span> <span class="kw-2">&</span><span class="ident">smallest</span>); } } } <span class="doccomment">/// Simple second-pass after generating all signals. Find pairs of traffic signals very close to</span> <span class="doccomment">/// each other with 2 stages each, see if the primary movement of the first stages lead to each</span> <span class="doccomment">/// other, and flip the order of stages if not. This is often wrong when the most common movement is</span> <span class="doccomment">/// actually turning left then going straight (near Mercer for example), but not sure how we could</span> <span class="doccomment">/// know that without demand data.</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">synchronize</span>(<span class="ident">map</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Map</span>) { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">seen</span> <span class="op">=</span> <span class="ident">HashSet::new</span>(); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pairs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); <span class="kw">let</span> <span class="ident">handmapped</span> <span class="op">=</span> <span class="ident">traffic_signal_data::load_all_data</span>().<span class="ident">unwrap</span>(); <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">all_intersections</span>() { <span class="kw">if</span> <span class="op">!</span><span class="ident">i</span>.<span class="ident">is_traffic_signal</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">seen</span>.<span class="ident">contains</span>(<span class="kw-2">&</span><span class="ident">i</span>.<span class="ident">id</span>) <span class="op">|</span><span class="op">|</span> <span class="ident">handmapped</span>.<span class="ident">contains_key</span>(<span class="kw-2">&</span><span class="ident">i</span>.<span class="ident">orig_id</span>.<span class="number">0</span>) { <span class="kw">continue</span>; } <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">list</span>) <span class="op">=</span> <span class="ident">IntersectionCluster::autodetect</span>(<span class="ident">i</span>.<span class="ident">id</span>, <span class="ident">map</span>) { <span class="kw">let</span> <span class="ident">list</span> <span class="op">=</span> <span class="ident">list</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">></span><span class="op">></span>(); <span class="kw">if</span> <span class="ident">list</span>.<span class="ident">len</span>() <span class="op">=</span><span class="op">=</span> <span class="number">2</span> <span class="op">&&</span> <span class="ident">map</span>.<span class="ident">get_traffic_signal</span>(<span class="ident">list</span>[<span class="number">0</span>]).<span class="ident">stages</span>.<span class="ident">len</span>() <span class="op">=</span><span class="op">=</span> <span class="number">2</span> <span class="op">&&</span> <span class="ident">map</span>.<span class="ident">get_traffic_signal</span>(<span class="ident">list</span>[<span class="number">1</span>]).<span class="ident">stages</span>.<span class="ident">len</span>() <span class="op">=</span><span class="op">=</span> <span class="number">2</span> { <span class="ident">pairs</span>.<span class="ident">push</span>((<span class="ident">list</span>[<span class="number">0</span>], <span class="ident">list</span>[<span class="number">1</span>])); <span class="ident">seen</span>.<span class="ident">insert</span>(<span class="ident">list</span>[<span class="number">0</span>]); <span class="ident">seen</span>.<span class="ident">insert</span>(<span class="ident">list</span>[<span class="number">1</span>]); } } } <span class="kw">for</span> (<span class="ident">i1</span>, <span class="ident">i2</span>) <span class="kw">in</span> <span class="ident">pairs</span> { <span class="kw">let</span> <span class="ident">ts1</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_traffic_signal</span>(<span class="ident">i1</span>); <span class="kw">let</span> <span class="ident">ts2</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_traffic_signal</span>(<span class="ident">i2</span>); <span class="kw">let</span> <span class="ident">flip1</span> <span class="op">=</span> <span class="ident">ts1</span>.<span class="ident">stages</span>[<span class="number">0</span>].<span class="ident">protected_movements</span>.<span class="ident">iter</span>().<span class="ident">any</span>(<span class="op">|</span><span class="ident">m1</span><span class="op">|</span> { <span class="op">!</span><span class="ident">m1</span>.<span class="ident">crosswalk</span> <span class="op">&&</span> <span class="ident">ts2</span>.<span class="ident">stages</span>[<span class="number">1</span>] .<span class="ident">protected_movements</span> .<span class="ident">iter</span>() .<span class="ident">any</span>(<span class="op">|</span><span class="ident">m2</span><span class="op">|</span> <span class="op">!</span><span class="ident">m2</span>.<span class="ident">crosswalk</span> <span class="op">&&</span> (<span class="ident">m1</span>.<span class="ident">to</span> <span class="op">=</span><span class="op">=</span> <span class="ident">m2</span>.<span class="ident">from</span> <span class="op">|</span><span class="op">|</span> <span class="ident">m1</span>.<span class="ident">from</span> <span class="op">=</span><span class="op">=</span> <span class="ident">m2</span>.<span class="ident">to</span>)) }); <span class="kw">let</span> <span class="ident">flip2</span> <span class="op">=</span> <span class="ident">ts1</span>.<span class="ident">stages</span>[<span class="number">1</span>].<span class="ident">protected_movements</span>.<span class="ident">iter</span>().<span class="ident">any</span>(<span class="op">|</span><span class="ident">m1</span><span class="op">|</span> { <span class="op">!</span><span class="ident">m1</span>.<span class="ident">crosswalk</span> <span class="op">&&</span> <span class="ident">ts2</span>.<span class="ident">stages</span>[<span class="number">0</span>] .<span class="ident">protected_movements</span> .<span class="ident">iter</span>() .<span class="ident">any</span>(<span class="op">|</span><span class="ident">m2</span><span class="op">|</span> <span class="op">!</span><span class="ident">m2</span>.<span class="ident">crosswalk</span> <span class="op">&&</span> (<span class="ident">m1</span>.<span class="ident">to</span> <span class="op">=</span><span class="op">=</span> <span class="ident">m2</span>.<span class="ident">from</span> <span class="op">|</span><span class="op">|</span> <span class="ident">m1</span>.<span class="ident">from</span> <span class="op">=</span><span class="op">=</span> <span class="ident">m2</span>.<span class="ident">to</span>)) }); <span class="kw">if</span> <span class="ident">flip1</span> <span class="op">|</span><span class="op">|</span> <span class="ident">flip2</span> { <span class="macro">info!</span>( <span class="string">"Flipping stage order of {} and {} to synchronize them"</span>, <span class="ident">i1</span>, <span class="ident">i2</span> ); <span class="ident">map</span>.<span class="ident">traffic_signals</span>.<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="ident">i1</span>).<span class="ident">unwrap</span>().<span class="ident">stages</span>.<span class="ident">swap</span>(<span class="number">0</span>, <span class="number">1</span>); } } } </pre></div> </section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="map_model" data-search-index-js="../../../../search-index.js" data-search-js="../../../../search.js"></div><script src="../../../../main.js"></script><script src="../../../../source-script.js"></script><script src="../../../../source-files.js"></script></body></html>