Developer Resources

CMRT does not guarantee the accuracy of the data nor does it warrant or endorse any application that uses this data. Data is updated frequently, so check back for the latest upload.

Disclaimer Agreement

Disclaimer and Liability Statement: Data is provided on an “AS IS” basis. Central Maryland Regional Transit (CMRT) specifically disclaims any warranty, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular use. The entire risk as to quality and performance is with the user. In no event will CMRT or its staff be liable for any direct, indirect, incidental, special, consequential, or other damages, including loss of profit, arising out of the use of this data even if CMRT has been advised of the possibility of such damages. CMRT may update, modify, or revise the data in this site at any time, without notice. Additionally, when using CMRT data or software in projects, maps, etc.; you agree to acknowledge CMRT as a data source.

General Transit Feed Specification (GTFS)

CMRT provides open data in General Transit Feed Specification (GTFS) format for several transit providers in Maryland. TRIP publishes GTFS feeds for use in Google Maps, but encourages third-party developers to utilize the feeds in other web and smartphone applications. To view a list of these agencies, please visit our Developer Resources page.