Transit Planning


Montgomery County has a planned network of transitways to serve a variation of trip types and land use. These include two existing transitways (the WMATA Red Line and the MARC Brunswick Line) and 12 planned transitways (the Purple Line, the Corridor Cities Transitway, and 10 additional rapid transit corridors). Use our interactive map tool to see existing and planned transit corridors and stations in Montgomery County. The map also contains links to relative master plans. Click here for the full screen version.

Find a Transitway

Use our interactive map tool to see existing and planned transit corridors and stations in Montgomery County. Click here for the full screen version.

Purple Line

Purple Line Functional Plan cover

Design is currently underway for the Purple Line, a proposed 16-mile light rail (LRT) line with 21 stations, which will run from Bethesda to New Carrollton and provide direct connections to Metrorail, local and inter-city bus, the MARC train and Amtrak. An east-west route connector for Montgomery and Prince George’s counties, the Purple Line has been under study since 1992.

Corridor Cities Transitway


The Corridor Cities Transitway (CCT) is a planned bus rapid transit (BRT) line with 16 stations extending from the Shady Grove Metrorail Station to Clarksburg. Design is currently underway by the Maryland Transit Administration for the section between the Shady Grove Metrorail Station and the Metropolitan Grove MARC Station.

Countywide Transit Corridor Network

Bus Rapid Transit Study Map

The Countywide Transit Corridors Functional Master Plan was approved by the County Council in November 2013 and includes 10 bus rapid transit (BRT) corridors in addition to the Corridor Cities Transitway. Three corridors are currently undergoing more detailed alternative analyses to help determine the initial and ultimate configurations for the BRT. This work is being coordinated locally by the Montgomery County Department of Transportation (MCDOT). The corridors in include Veirs Mill Road (MD 586), US 29, and MD 355.

Transitway Right-of-Way


As part of the development review process, the Montgomery County Planning Board requires developers to set aside property required for a transitway as a dedication, easement, or reservation. These tools provide varying levels of protection for a transitway, to ensure that the land is available when the County is ready to construct the transitway. Learn More

Last Updated: March 8, 2018