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GTFS Realtime feed

Chicago Transit Authority (CTA)

This page is designed for developers, analysts, and other transit data users. Looking for rider information? Find an operator in Transitland Explore.

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This feed's record is kept in Transitland Atlas, where you can view or edit the record on GitHub. Transit agencies are also welcome to send updates to hello@transit.land.

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Overview

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Onestop IDA globally unique identifier for this feed
f-cta~rt
FormatData specification or format for this feed
GTFS Realtime
Operator
Chicago Transit Authority (CTA)
URLs
  • GTFS Realtime vehicle positions:
    https://transitdata.transitchicago.com/GtfsRealtime/VehiclePositions.pb
  • GTFS Realtime trip updates:
    https://transitdata.transitchicago.com/GtfsRealtime/TripUpdates.pb
  • GTFS Realtime service alerts:
    https://transitdata.transitchicago.com/GtfsRealtime/ServiceAlerts.pb
Authorization
  • Type: query_param
  • Parameter name: key
  • Info URL:
    https://transitdata.transitchicago.com/

License

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License URL
https://www.transitchicago.com/developers/terms/
Use without attribution
Yes
Derived products
Yes

Static feeds

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These GTFS feeds share operators with this feed. Each row shows the feed's latest fetch.

FeedLast fetched
f-dp3-cta

Download

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When a feed's license allows redistribution, Transitland keeps a recent copy of each GTFS Realtime endpoint: vehicle positions, trip updates, and service alerts. Sign in with a Transitland subscription to view or download them.