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Transit Developers ListServ

Transit Developers This group is for software developers both inside and outside transit agencies who want to discuss reuse of transit software, open transit data, and interesting things that they've built.

  • Slack workspace name change = "GTFS" -> "MobilityData IO"
    by Sean Barbeau on October 10, 2019 at 9:53 pm

    Hi all, I just wanted to give everyone a heads up that to accommodate a growing interest in the community for formats beyond GTFS, the "GTFS" Slack workspace is changing names to "MobilityData IO". As you may know MobilityData ( has been working with the community to […]

  • Fw: ATL Solicitation No. 20-003: RFP for General Transit Feed Specification (GTFS) Consulting
    by Barbeau, Sean on July 29, 2019 at 3:27 pm

    FYI ________________________________ From: Leanna Pierre Sent: Wednesday, July 24, 2019 3:17 PM To: Leanna Pierre Subject: ATL Solicitation No. 20-003: RFP for General Transit Feed Specification (GTFS) Consulting Good afternoon, The ATL is seeking […]

  • Siri Stop Next Departures
    by Paul Harrington on July 26, 2019 at 8:25 am

    I've been asked to put together a simple proof of concept demo where for some feed (doesn't matter which one) the next departures at a bus stop are returned. I've started googling but unlike GTFS SIRI a bit of a quagmire. Basically what I would be hoping for is an example request to a live open […]

  • [Help] Getting off the ground developing with GTFS data
    by Christian Overton on May 30, 2019 at 8:40 am

    I am a college student looking to make an application with GTFS data for the first time. I'm doing my best to review the reference ( to figure out what everything is but I'm still finding it a little hard to figure out where to begin. I'm […]

  • fare structure variations
    by Nikhil VJ on May 13, 2019 at 2:16 pm

    Hello, Two questions about fares in GTFS 1. If we have different ticket prices for children and people (by children they generally mean babies, toddlers and kids up to age 6 or 10 or up to a certain height like 4 feet), then how can we express that in GTFS? How are other agencies handling this? […]

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