roadgraph_builder Trajectory + centerlines + reachability + HD-lite lane boundaries on OSM (WGS84) Layer Paris grid (OSM highways + turn restrictions, HD-lite lanes, ODbL) Berlin Mitte (OSM highways, HD-lite lanes, ODbL) Tokyo Ginza (OSM highways + turn restrictions, HD-lite lanes, ODbL) San Francisco North Beach (OSM highways + turn restrictions, HD-lite lanes, ODbL) Paris (OSM public GPS traces, ODbL) OSM sample (Berlin area, GPS-derived) Toy (synthetic meters → map) Mode Basic (centerlines + nodes) SD (+ route + turn restrictions) HD (+ lanes + semantics + reachability) Full (everything) Slope (signed gradient: blue=down, red=up; 3D lifted by elevation; legend in degrees + percent) Clear route Download route GeoJSON Reach 250 m 500 m 1000 m 2000 m Reach from click 2D 3D Click two graph nodes to route between them. Diagram viewer Lanelet2 OSM GitHub