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


----------------------------------------------------------------------



Message: 1

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

From: Patrick Brosi | geOps 
<[email protected]<mailto:[email protected]>>

To: [email protected]<mailto:[email protected]>

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

Message-ID: <[email protected]<mailto:[email protected]>>

Content-Type: text/plain; charset=windows-1252; format=flowed



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



--

geOps e.K.

--------------------------------

Commercial Registry A 702785, Freiburg

Kaiser-Joseph-Strasse 263

D-79098 Freiburg

--------------------------------

direct  +49 (0)761 458925 10

free    +800 436 436 436

--------------------------------

web www.geops.de<http://www.geops.de>

rss www.geops.de/blog/feed<http://www.geops.de/blog/feed>

follow www.twitter.com/geops<http://www.twitter.com/geops>

--------------------------------

_______________________________________________
Talk-transit mailing list
[email protected]
https://lists.openstreetmap.org/listinfo/talk-transit

Reply via email to