Master Plan of Highways and Transitways

Transportation planners are reviewing and revising the county’s Master Plan of Highways and Transitways, an effort that classifies each Montgomery County road in the transportation network, in the first comprehensive update to the plan since 1955.

The plan will update the road network with current classifications, incorporate road changes, and align it with the County Road Code, which was comprehensively updated in 2008 and in 2014. The update will consolidate all roadway amendments that have been approved as part of Master Plans as well as limited functional Master Plan of Highways amendments. The new plan will also include transitways, rail stations, and other transit centers. To reflect the greater scope of the plans, the name will be changed to the Master Plan of Highways and Transitways.

A storymap is provided in the Functional Classification section below to demonstrate how highways and transitways are master planned within Montgomery County.

Due to budget constraints and scheduling changes, the update was on hiatus from July 1, 2010 to June 30, 2014. Our current schedule has planning board review in November 2017 – February 2018 and a plan completion date in August 2018.

Focused outreach occurred in September and October 2017 with a series of five meetings and the launching of a feedback map in August 2017. See the Outreach section below for more details. A public hearing was held by the Planning Board on February 15, 2018 to obtain input on draft recommendations. The Planning Board Draft was approved on May 3, 2018 and will be transmitted to the County Council and County Executive for review in mid-May.


The plan will encompass the entire County, less the seven municipalities that have their own planning authority: Rockville, Gaithersburg, Laytonsville, Brookeville, Poolesville, Washington Grove, and Barnesville.

Last Updated: May 23, 2018