Traffic Signals


As DDOT is charged with providing a safe transportation system by maintaining a high quality traffic control system, including traffic signals and street lights, DDOT shall:

  • regularly evaluate the need for adjustments to traffic signal timing to minimize unnecessary automobile idling.
  • review timing on pedestrian signals to ensure that adequate time is provided for crossing, particularly for locations with a large elderly population.
  • place and maintain traffic control devices on all District streets and highways as necessary to regulate, warn, or guide traffic.

Procedures & Services

Residents may request traffic signal issue investigations by calling the Mayor's Citywide Call center at 311, or visiting 311 Online, and submitting a request.

Traffic Signal FAQs

HAWK Pedestrian Signal Guide

Energy Savings Initiatives - LED Traffic Signals, Uninterruptible Power Supply (UPS), and Signal Optimization

DDOT shall adopt the Federal Highway Administration's (FHWA) Manual on Uniform Traffic Control Devices (MUTCD) as the official standard for traffic signs, traffic signals, pavement marking, and traffic control devices. (DCMR 18-2100).

See Related

Additional Information

Legal References

Design Standards & Specifications

Transportation Plans & Studies

Other Resources

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  File Modified

PDF File Energy Savings Initiatives.pdf

26 Mar, 2022 by James Graham

PDF File Hawk Pedestrian Signal Guide.pdf

26 Mar, 2022 by James Graham

PDF File Traffic Signal FAQs.pdf

26 Mar, 2022 by James Graham