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The goal of this project is to supplement OpenTripPlanner in Headway as an infill service for areas not covered by OpenTripPlanner instances. Memory mapping is used for the timetables with the aim of enabling planet-scale coverage with a single instance, and affordable hosting costs. GTFS-RT support is in scope. Per-request walking/cycling costing model tweaks will likely never be supported because RAPTOR requires pre-computation of transfers, but pre-defined costing models for walking, cycling, and wheelchair usage are in scope.
This project may be obsoleted by Valhalla's built-in multimodal support depending on its performance characteristics. Based on the information in the RAPTOR paper about its performance versus A* based methods, it seems likely that there will still be a place for farebox even once Valhalla can do multimodal trips. This project may also eventually support a rRAPTOR routing option which would allow simultaneous calculation of itineraries across a wide range of departure times, which isn't something you can do with an A* search through a time-dependant routing graph to my knowledge.
