Traffic Signals
Mission
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
-
Traffic Signs (Compendium)
-
Traffic Signals (Compendium)
-
Traffic Calming (Compendium)
-
Traffic (Compendium)
Additional Information
Legal References
- DCMR 10-A410.9: Action T-2.4.A: Pedestrian Signal Timing
- DCMR 10-A411.16: Action T-2.5.B: Signal Timing Adjustments
- DCMR 18-21: Traffic Signs, Signals, Symbols, and Devices
Design Standards & Specifications
- DDOT Design and Engineering Manual, Chapter 40: Traffic Signal Design
- DDOT Guidelines on Vehicular and Pedestrian Interval Calculation
- Manual on Uniform Traffic Control Devices (MUTCD)
Transportation Plans & Studies
Other Resources
- n/a