roadgraph_builder

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Validation Surface

Post-release results

Current main combines the Paris turn-restriction map preview, lane-count baselines, cross-city tuning, and float32 dtype checks.

Paris road graph with a highlighted route, reachability overlay, and turn-restriction junctions

Interactive Map Paris grid route + reachability OSM-highway graph · 10 mapped turn restrictions · 500 m service-area overlay 855 nodes · 1081 edges · ODbL assets

Routing 909 m Paris TR-aware route; unrestricted baseline is 878 m, with explain diagnostics. Accuracy 0.938 MAE Paris 20e lane-count baseline at 20 m matching. Tuning 40 / 8 Conservative max-step / merge-endpoint start across 3 cities. Memory float64 Default retained after float32 replay showed small RSS wins and ID drift.

Observable Routing Route search work is visible, not guessed route --explain emits engine choice, fallback reason, expanded states, queued states, route edge count, and total length. This panel loads the generated sample and compares safe A* against the Paris turn-restriction fallback. Open generated diagnostics JSON

Loading route diagnostics…