Roadway Configuration: Three Lanes without Raised Median (one lane each way with two-way left-turn lane)

Roadway Configuration: Three Lanes without Raised Median (one lane each way with two-way left-turn lane)

Countermeasure recommendations differ based on the level of traffic and posted speed limit.    Use the guide below to locate the countermeasures that address your safety issue.

For three lane configurations without a raised median with

Three Lanes without Raised Median (one lane each way with two-way left-turn lane); photo by FHWA
Photo courtesy of FHWA


AZ STEP Guide Decision Tree


Decision Tree is also available to assist you.