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Improving Road Safety with Two-Way Left-Turn Lanes

Status:  Complete
Report Date:  07/03/2006

Summary:

Researchers examined the effect on safety and operations of converting traditional four-lane roadways to three-lane roadways with two-way left-turn lanes by analyzing before and after data from nine Minnesota sites. They found that such conversions can improve safety with little impact on operational conditions.

Final Deliverables:

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Related Research: