The purpose of the MD 28/MD 198 Corridor Improvement Study, is to:

• Improve local traffic safety and operations for motorists, bicyclists, and pedestrians traveling along the MD 28/MD 198 corridor and across intersecting roads, while managing access; and
• Preserve the rural and suburban quality of life by addressing localized traffic issues, while considering local planning visions and state growth policies for communities along the corridor.

Because MD 28 and MD 198 are operating near capacity in areas between I-95 and MD 97, planned and future development is expected to cause stop-and-go conditions by 2040, with significant delays expected at area intersections. The project will address local operational and capacity deficiencies to meet this expected increase in travel demand, improve safety, and incorporate sidewalks and bicycle facilities, where possible. For additional details, click on the Purpose and Need document.

The study, first initiated in 2001, was placed on hold in 2009 due to the economic downturn. The study resumed in 2013 and an Informational Workshop was held in 2014 to provide an overview of the project, review changes in travel demand, and provide an opportunity to re-examine the project’s purpose and need.

Road Segments



Due to the length of the project, the corridor has been broken into five geographic segments.

A: MD 28 from MD 97 (Georgia Avenue) to MD 182 (Layhill Road)
B: Norbeck Road from MD 182 (Layhill Road) to MD 650 (New Hampshire Avenue)
C: MD 198 from MD 650 (New Hampshire Avenue) to Old Columbia Pike
D: MD 198 from Old Columbia Pike to US 29
E: Segment E: MD 198 from US 29 to I-95

By evaluating improvement options by segment, a mix of elements can be selected from a "menu" that may result in a final alternative that includes options from more than one alternative.

Alternatives Public Workshop
At the March 2015 Alternatives Public Workshop, the project team presented updated information on environmental impacts, traffic data and three preliminary alternatives and options:

Alternative 1 – No-Build
Alternative 2 – Transportation Systems Management/Transportation Demand Management (TSM/TDM)
Alternative 3 – Master Plan

Location Design Public Hearing Brochure.
Location/Design Public Hearing Display Boards.
Location/Design Public Hearing Transcript, Displays and Correspondence

• Fall 2017: The project team is evaluating comments received on the public hearing alternatives and will perform additional studies if necessary.


• 2018: The project team will select a Preferred Alternative and prepare the final environmental document. Once completed, the final environmental document will be submitted to the US Department of Transportation Federal Highway Administration (FHWA) for Location/Design Approval of the MDOT SHA Preferred Alternative.