Geospatial Data

We're providing geospatial data free of charge in both KML and KMZ format. Keyhole Markup Language (KML) is an XML notation for expressing geographic annotation and visualization, and KMZ is a compressed version the KML. BART is providing data to the general public under a simple License Agreement: you never need to register and we don't make you jump through hoops to access BART open data.


BART rail lines:


Frequently Asked Questions

Why are you doing this?
We want to foster innovative applications, reach a broader audience and encourage more people to choose BART.

Will you help me troubleshoot?
If we help you, it's only fair that we help everyone else, too. We simply don't have the resources for that. Let us know about any issues or enhancements you'd like to see, but unfortunately we aren't able to provide technical support for your development efforts.

What are your plans for future development?
All of our developer services are created on what we call "BART one percent time." So within that context we're doing our best to fix problems, add new features and keep it all going. Drop us a line with your suggestions and learn about changes through the opt-in email list or the BART Developers Google Group.