Netpas Now

def netpas_shortest_path(start, end, preferences): # Phase 1: Graph contraction (offline) contracted_graph = perform_contraction_hierarchies(base_graph) # Phase 2: Bidirectional Dijkstra on contracted nodes forward_dist = dijkstra(contracted_graph, start, preferences.alpha) backward_dist = dijkstra(contracted_graph, end, preferences.beta) # Phase 3: Unpack shortcuts to original road geometry raw_route = unpack_shortcuts(forward_dist, backward_dist) # Phase 4: Apply turn penalty smoothing final_route = apply_turn_penalties(raw_route) return final_route

[3] Bast, H., et al. (2016). "Route Planning in Transportation Networks." ArXiv preprint arXiv:1504.05140 . netpas

[4] Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan. (2025). Freight Vehicle Movement Survey . preferences.alpha) backward_dist = dijkstra(contracted_graph