Traffic Studies

Pedestrians crossing an intersection.

The Los Angeles County Department of Public Works (Public Works) receives nearly 1,500 traffic-related requests annually, from residents, community groups, school organizations, and others throughout unincorporated Los Angeles County. When residents have concerns about traffic conditions in their neighborhoods, they should notify Public Works by submitting a request below or calling (626)300-4709. Public Works will assign a Traffic Investigator who will contact you to discuss your concerns. After which, they will conduct a study and prepare a report with their recommendation and contact you with their findings.


Request a Traffic Study