Fix formatting and update documentation

Claude · DennisOSRM · Claude · commit 080cf39a81a9 · 2026-03-01T21:42:53.000Z
- Apply clang-format to graph_compressor.cpp
- Add turning circle feature to CHANGELOG.md
- Document has_turning_facility field in profiles.md

Co-authored-by: DennisOSRM &lt;1067895+DennisOSRM@users.noreply.github.com&gt;
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Unreleased
   - Changes from 6.0.0
     - Routing:
+      - ADDED: Use turning circles, turning loops, and mini roundabouts for u-turns with zero penalty [#620](https://github.com/Project-OSRM/osrm-backend/issues/620)
       - FIXED: Crash when route starts or ends at `type=manoeuvre` relation via node [#7287](https://github.com/Project-OSRM/osrm-backend/issues/7287)
     - Extraction:
       - ADDED: Emit warning when ways reference nodes not present in input data [#1596](https://github.com/Project-OSRM/osrm-backend/issues/1596)
diff --git a/docs/profiles.md b/docs/profiles.md
@@ -416,6 +416,7 @@ angle                              | Read          | Float                     |
 number_of_roads                    | Read          | Integer                   | Number of ways at the intersection of the turn
 is_u_turn                          | Read          | Boolean                   | Is the turn a u-turn?
 has_traffic_light                  | Read          | Boolean                   | Is a traffic light present at this turn?
+has_turning_facility               | Read          | Boolean                   | Is a turning facility (turning_circle, turning_loop, or mini_roundabout) present at this intersection?
 is_left_hand_driving               | Read          | Boolean                   | Is left-hand traffic?
 source_restricted                  | Read          | Boolean                   | Is it from a restricted access road? (See definition in `process_way`)
 source_mode                        | Read          | Enum                      | Travel mode before the turn. Defined in `include/extractor/travel_mode.hpp`
diff --git a/src/extractor/graph_compressor.cpp b/src/extractor/graph_compressor.cpp
@@ -265,17 +265,17 @@ void GraphCompressor::Compress(ScriptingEnvironment &scripting_environment,
                                                              EdgePenalties &penalties)
                 {
                     // generate an artificial turn for the turn penalty generation
-                    ExtractionTurn fake_turn{from,
-                                             via,
-                                             to,
-                                             from_edge,
-                                             to_edge,
-                                             no_other_roads,
-                                             no_other_roads,
-                                             scripting_environment.m_obstacle_map.any(
-                                                 from, via, Obstacle::Type::TrafficSignals),
-                                             scripting_environment.m_obstacle_map.any(
-                                                 via, Obstacle::Type::Turning)};
+                    ExtractionTurn fake_turn{
+                        from,
+                        via,
+                        to,
+                        from_edge,
+                        to_edge,
+                        no_other_roads,
+                        no_other_roads,
+                        scripting_environment.m_obstacle_map.any(
+                            from, via, Obstacle::Type::TrafficSignals),
+                        scripting_environment.m_obstacle_map.any(via, Obstacle::Type::Turning)};
                     scripting_environment.ProcessTurn(fake_turn);
                     penalties.duration +=
                         to_alias<EdgeDuration>(fake_turn.duration * SECOND_TO_DECISECOND);
