National Capital Planning Commission



NCPC supports a multi-modal regional transportation system and transit-oriented development to improve mobility and air quality throughout the region.

Improving Crosstown Mobility

The closure of portions of E Street and Pennsylvania Avenue to protect the White House disrupted east-west travel in the capital.

The White House Area Transportation Study (WHATS) explored ways to improve traffic flow by restoring the street grid, improving transit services, or improving traffic operations.

The study broke new ground as one of the first applications of TRANSIMS, a traffic modeling tool recently developed through FHWA.

WHATS Information Presentation [PDF 6.5 MB]
October 2010

WHATS Final Report [PDF 4 MB]
June 2011

WHATS Technical Appendix [PDF 4 MB]
June 2011

Creating Choices

The Circulator bus provides direct links between important cultural, entertainment, and business destinations in the District. NCPC recommended this type of system in its 1997 Legacy Plan. Today, Circulator improves mobility and reduces traffic congestion.

The Monumental Core Framework Plan envisions a future with even more ways to get around the city. Ideas include:

  • A water taxi to connect the up-and-coming Anacostia waterfront with destinations like Georgetown and the Kennedy Center

  • A new Metro stop in East Potomac Park to make this recreation space a more central part of city life

  • Additional bike lanes to provide a cleaner and more convenient transit option for everyday commutes

Reducing Car Travel

Federal agencies must prepare a Transportation Management Plan (TMP) that demonstrates an effort to reduce their employees' reliance on single-occupant vehicles.

The TMP Handbook helps agencies meet strict limits on the number of parking spaces at their facilities. It outlines strategies for agencies to increase the use of ridesharing, biking, walking, & mass transit.

By employing best practices in transportation planning, the federal government can help
can minimize the impact of vehicular traffic on local communities and reduce fossil fuel consumption.

NCPC collaborated with the General Services Administration and the Metropolitan Washington Council of Governments to produce the handbook.     

Increasing Rail Efficiency

Each year over 22 million tons of freight move through the capital’s monumental core on obsolete rail lines. This outdated infrastructure creates a bottleneck hampering freight and passenger rail operations along the entire east coast.

Channeling freight rail traffic out of the city’s center will improve the reliability of both freight and passenger service, and it will reduce truck travel on the region’s roadways.

The Freight Railroad Realignment Feasibility Study provides an in-depth examination of the costs and benefits associated with several alternative routes.

Related Publications

Comprehensive Plan: Transportation Element

Extending the Legacy

Monumental Core Framework Plan

New Way for K Street

NY/FLA Ave Charrette

DC Tour Bus Management

Mall Roads Streetscape Manual

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