[Talk-transit] GTFS and the like

[Barbeau, Sean]

Patrick,
Thanks for the feedback!  If I recall correctly, we do have a basic route info sync, but it's meant for route properties, not the spatial representation of the route.  You can view the route diff view here:
https://code.google.com/p/gtfs-osm-sync/wiki/GettingStarted#Report_Route_Viewer

However, I believe MapQuest's XAPI changed shortly after we implemented this and removed the ability to get route information, and the feature currently isn't functional.

Routes can actually have several shapes based on the trip_ids and stop_times that run on different schedules or stop sequences.  So, this can get very complex and depends on temporal information as well.  In my opinion this would be a significant undertaking, and as I mentioned earlier I'm not convinced that maintaining temporal information in OSM is the best way to represent/store the data.

No future plans to include such functionality as of now (our work is grant funded, and we currently don't have funding source to continue development), although we'd be glad to accept contributions if someone else wants to take this on.

On a related note, I think tools like Transit Wand have a lot of promise in assisting agencies/others in creating more accurate shapes.txt information:
http://transitdata.openplans.org/

Sean


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Message: 1

Date: Fri, 04 Apr 2014 14:36:25 +0200

From: Patrick Brosi | geOps <patrick.brosi at geops.de<mailto:patrick.brosi at geops.de>>

To: talk-transit at openstreetmap.org<mailto:talk-transit at openstreetmap.org>

Subject: Re: [Talk-transit] GTFS and the like

Message-ID: <533EA749.5080502 at geops.de<mailto:533EA749.5080502 at geops.de>>

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Sean, it would be interesting to know whether GO-Sync's processing includes the GTFS route shapes (the exact vehicle paths stored in

shapes.txt) in any way. For example: if the GTFS feed only covers the location / attributes of stations and is missing shapes.txt information, does GO-Sync try to extract these shapes from OSM data? If so, what approach do you use? How are existing shapes compared to data already existent in OSM?



Many public transport companies have very good data regarding the position of their stops, but lack the exact paths vehicles take between succeeding stations. In my opinion, providing not only the possibility to extract these shapes from existing OSM data but also the tools to edit them via OSM would dramatically increase the geospatial quality of many GTFS feeds.



I just browsed GO-Sync's paper and couldn't find anything relating to this problem. Are there any future plans to include the functionality described above?



Thank you!



Best regards



Patrick Brosi



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