Metrobus Studies
WMATA's official website for the Priority Corridor Restructuring Series


Z Lines Silver Spring-Columbia Pike

P12 Eastover-Addison Line

Metrobus Transit Service Guidelines

Metrobus Late Night Service

Rhode Island Ave-Baltimore Ave Line

Little River Turnpike (29 Lines)

C2-C4 (Greenbelt-Twinbrook Line)

80 (North Capitol Street Line)

F4-F6 (East-West Highway, Maryland)

52-53-54 (14th Street Line)

A Lines (Anacostia-Congress Heights)

Y Line (Georgia Avenue-MD)

90s Line (U Street-Garfield)

K6 Line (New Hampshire Ave-MD)

X Line (Benning Road-H Street)

28-Leesburg Pike Line

Q Line (Veirs Mill Road)

S Line (16th Street)

30s Line (Pennsylvania and Wisconsin Ave)

Crystal City-Potomac Yard Transitway (Metroway)

Metrobus Service Evaluations:

WMATA's Homepage



What is Metroway?

Metroway is a new transit service offering a faster trip along Route 1 between Crystal City and Braddock Rd Metrorail stations, via Potomac Yard. The service will replace the current Metrobus 9S and feature dedicated bus-only lanes, consolidated bus stops, and more service, seven days a week. Because Metroway buses travel on bus-only lanes through congested areas, beating traffic is a breeze. Buses come often and make limited stops, so you’ll get where you need to go—faster.

Metroway launches in late Summer 2014.

Please find below an archive of all previous studies, technical memoranda, and presentation materials regarding Metroway. For more information about the service, visit

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Reports & Publications

1. Transitway Implementation

2. Environmental Review (Approved, March 2011) for Transitway Section B — Alexandria

Documented CE, Section BM (March 2011)

3. Environmental Review Update (Approved December 2010) for Transitway Sections D and E — Arlington

Updated Categorical Exclusion — December 2010:

Stakeholder Meeting—July 27, 2010

Stakeholder Meeting—March 17, 2010

4. Environmental Review (2006-07)

5. Implementation Strategy Study

  • The Crystal City/Potomac Yard Corridor Interim Improvement Project Summary. This 11-page report from December 2005 is a technical memorandum that outlines the phased service improvements in the corridor, station stops and amenities, project development and implementation, estimated capital and operating cost, and what steps will be taken next in the project.

  • The Crystal City/Potomac Yard Corridor Interim Improvement Project Environmental Scan. This 17-page report from November 2005 is a technical memorandum that documents potential impacts to the study area as a result of the proposed transit system. The environmental scan looks at soils, air quality, noise and vibration, water resources, protected species and critical habitats, environmental justice, parklands, hazardous and contaminated materials, neighborhood and community impacts, property and acquisition and displacement, historic and cultural resources, safety and security, and aenergy econsumption.

  • The Crystal City/Potomac Yard Corridor Interim Improvement Project Transit Connection. This community newsletter from Spring 2005 was distributed to members of the local community in Alexandria and Arlington. The newsletter features articles on the purpose of and need for transit improvements in the corridor, the project implementation plan, and operational characteristics of state-of-the-art transit systems.

6. Alternatives Analysis

  • The Crystal City/Potomac Yard Corridor Transit Alternatives Analysis Final Report(see links below). This March 2003 report, published by the Virginia Department of Rail and Public Transportation, contains an overview of the project and study area and explores the project's purpose and need, alternative transit technologies, potential maintenance facilities, and investment strategies. Central to the document are the identification of evaluation criteria, an analysis of the alternatives based on that criteria, and study recommendations. Because of the large size of the Alternatives Analysis, the document has been split here into five separate PDFs:

7. Other Studies

  • A related document, the Crystal City Metrorail Station Access Study final report, is also available. Prepared by Arlington County and the Washington Metropolitan Area Transit Authority (Metro) in 2002, the study makes recommendations for improvements to the Crystal City Metro Station, including station entrances, pedestrian and bicycle facilities, and internal station enhancements. A slide presentation of the study can also be downloaded.

  • For further information on the Crystal City/Potomac Yard Corridor Alternatives Analysis and Transit Improvements Project, please visit the City of Alexandria's Development page. And for general information about transportation and transit in Arlington, please visit the county's Department of Environmental Sciences Transportation Index Page.