[OSM-dev] Matching live bus position to route?
tom at macwright.org
Tue Oct 22 14:17:28 UTC 2013
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.
On Tue, Oct 22, 2013 at 10:13 AM, Grant Slater
<openstreetmap at firefishy.com>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.
> * 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
> dev mailing list
> dev at openstreetmap.org
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