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The Traffic Engineering Section is dedicated to providing the residents and motorists in the County with an efficient and safe transportation system. The Traffic Engineering Section coordinates the following Traffic Engineering Programs: Traffic Engineering Investigations, Radar Speed Enforcement, Traffic Control Devices, Traffic Counts, and Highway Safety Review.

Enforcement of traffic laws in unincorporated Riverside County is done by the California Highway Patrol.

List of Functions

  • Transportation System Management
  • Traffic Investigations
  • Traffic Control Device Request
  • Traffic Surveillance
  • Traffic Safety Program
  • Signal / Striping Plan Review / Coordination

On-Line Support / Services

Traffic Control Device Request Form 

Traffic Public Information Series

Traffic Counts Online

Contact Info

Traffic Engineering Section
(951) 955-6800

Office Locations

3525 14th Street
Riverside, CA 92501

Related Links

California Highway Patrol

National Traffic Highway Safety Administration

Federal Highways Administration (FHWA)

AAA Effective Speed Zoning Booklet

Man fixing signal light