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OTD Resources

Need some help? Not sure where to get started? Check out the resources below.  If you know of other sites or groups that would help your fellow transit data peeps send them on to


Transit Data and GTFS

Google Transit Overview - including the gtfs specification



Features and Ideas requested by the public


Developer Forums and Groups

OneBusAway Users Google group

OneBusAway Developers Google group

OneBusAway API Google group

OneBusAway on Github

Open Transit Data on Github


Puget Sound OBA Data Status

OneBusAway Github Commits Google group


API Information


Calls: OneBusAway API Library/Information







*A note on names:  Sometimes One Bus Away refers to the actual app (open source supported) and sometimes it refers to the data store (Sound Transit supported) used by both the app with the same name and others like Sound Transit's Trip Planner. You may also see RDS (Regional Data Services) in places where it would be hard to change - that's the old name for OTD (Open Transit Data)