King County Road Services - Traffic maintenance and engineering services

King County Traffic Engineering and Maintenance staff accept the 2010 Washington Traffic Safety Commission Target Zero Traffic Safety Award in the Run-Off-Road Crashes category.

2010 Washington Traffic Safety Commission Target Zero Traffic Safety Award winner!

On Wednesday, Sept. 22, 2010, the Washington Traffic Safety Commission (WTSC) honored King County traffic safety professionals for their outstanding contributions to traffic safety. Learn more.

Our services

Traffic services

Signs, signals, crosswalks and streetlights

Traffic cameras

Traffic sign bingo

Traffic signs and standards

Safety services

Be Safe, Be Smart

Injury prevention

Neighborhood traffic safety

Preparedness

Traffic accident reports

Traffic counts

Traffic laws

Traffic safety reports

Traffic tickets

Our vision

Over the next several years, King County's population is predicted to grow significantly, resulting in increased automobile, pedestrian, and bicycle traffic and congestion. Public/political scrutiny and expectations are also expected to escalate, while we continue to face limited resources. These challenges will be met by utilizing technology, emphasizing professional training, promoting regional coordination, and seeking innovative new solutions to increase traffic and safety management, program efficiency, and public confidence.

Contact us

King County Road Services Division
Traffic Engineering and Maintenance Section
201 S. Jackson St.
Seattle, WA 98104
206-296-6596
1-800-527-6237 toll-free
traffic.roads@kingcounty.gov
206-296-0176 fax
TTY: 711 Relay Service

Information from the Road Services Division's website is available to people with disabilities in alternate formats upon request by calling 206-263-6482 or 711 for the TTY relay service.

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About the Traffic Engineering and Maintenance Section

The King County Traffic Engineering and Maintenance Section provides traffic engineering, operations, traffic studies, signal systems operations and maintenance of all traffic signs and pavement markings in unincorporated King County and for contract cities. Led by the County Traffic Engineer, the Section is responsible for promoting safety in neighborhoods and on county arterials. We design, construct, maintain and operate the County's Intelligent Transportation System (ITS) through a Traffic Control Center.

The Traffic Section administers a Neighborhood Traffic Safety Program to help provide safer neighborhoods countywide. We also maintain a traffic accident record management program and a High Accident Location/High Accident Roadway Segment (HAL/HARS) program to focus remedial safety actions where they are needed most. We provide traffic engineering development review for developments in unincorporated King County. The Section is involved in a variety of activities with citizens and community groups to interact on any issue related to traffic safety.