Data graphic

Open data

CTA publishes a variety of data that we expect will be useful to software developers, researchers, urban planners, journalists and businesses, as well as interested citizens.

We encourage you to explore our data and make use of it.

If you have feedback about our data, send us an e-mail at and we'll do our best to respond to your inquiry.

Data on the City of Chicago Data Portal

The City of Chicago has engaged in an extensive open data program through their data portal at, releasing hundreds of datasets about how the city does business.Through a partnership with the City of Chicago, data from CTA, as a sister agency to the City, is being hosted in the city's data portal. The portal offers powerful, robust features for viewing, visualization and retrieval of public data.

How to view our data

You can browse any of the datasets listed on this page online by following the links below. Many datasets can also be exported for analysis or incorporation into software or other systems.

Data on the RTA's Regional Transparency Portal

Open data about contracts, payments, vendors and employees are available on the Regional Transportation Authority's Regional Transparency Portal.


Transit data for developers

We publish a variety of transit data, including our static GTFS feed, APIs into real-time data for Bus Tracker and Train Tracker, as well as detailed service alert information that you'd find on our website and in our own digital signage and app.

Visit our Developer Center for transit data with which you can build apps.

System status snapshot
‘L’ route status
Red Line
Normal Service
Brown Line
Normal Service
Green Line
Normal Service
Orange Line
Normal Service
Pink Line
Normal Service
Purple Line
Normal Service
Yellow Line
Normal Service
Bus routes w/alerts
Elevator alerts