Hey Grant, Look into wmata-gtfsrealtime: https://github.com/kurtraschke/wmata-gtfsrealtime which aims to solve the same problem for DC.
It's semi-impenetrable Java code but the jist is that you create a 'unit space' (fancy word for distances in a bunch of dimensions) and use it to calculate nearest-neighbor from real life bus to theoretical routed bus. Tom On Tue, Oct 22, 2013 at 10:13 AM, Grant Slater <[email protected]>wrote: > Hi OSM-Dev, > > Dev challenge... > > I have a near live feed of bus positions for around 130 buses and > (soon) all the passenger bus routes. Routes are relations in OSM. > > Does anyone have experience or firm suggestions on how best to match a > live feed of bus positions to a set route? > > Feed Data: > * BusID (no direct match to route) > * Timestamp > * Position > * Travel Direction (Degrees) > > I also have 2 weeks worth of historical data. > > Typically: > * Bus A will drive from depot to start of route 1 and loop on route 1 > all day... maybe route 4 tomorrow. > * Bus B as above but does route 2 and then route 3... > * Bus C will be deployed on any route as required. > > All routes may share a few short segments. > > Kind regards > Grant > > _______________________________________________ > dev mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/dev >
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