Improving Road Safety with Two-Way Left-Turn LanesStatus: CompleteReport 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: Safety and Operational Characteristics of Two-Way Left-Turn Lanes (Report #2006-25) Improving Road Safety with Two-Way Left-Turn Lanes (Research Summary) Related Materials: Related Research: