Tool Box
Neighborhood Traffic Management Program

FORCED-TURN ISLAND

Forced turn islands are raised islands that prohibit certain movements on approaches to an intersection.

Advantages

• Can improve safety at an intersection by prohibiting critical turning movements
• Reduces traffic volumes

Disadvantages

• If designed improperly, drivers can maneuver around the island to make an illegal movement
• May divert a traffic problem to a different street

For additional information please contact:

Tracy Whitley
Project Engineer
Sacramento County Department of Transportation
whitleyt@SacCounty.net