Case Study Tag: Intersections

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Reduced Conflict Intersections in North Carolina

North Carolina
Reduced Conflict Intersections reduced total crashes by 50% and frontal impact crashes by 80%.
Reduced Conflict Intersections WebpageAASHTO Case Study

All Way Stops (AWS) in North Carolina

North Carolina
All Way Stops at rural intersections reduced fatal and severe injury crashes by 92%.
All Way Stop WebpageAll Way Stop Summary BriefAASHTO Case Study

Natural Bridge Avenue Safety Project

Missouri
The Natural Bridge Ave road diet and safety project reduced speeds by 17%, reduced all crashes by 75% and fatal pedestrian crashes by 100%.
Project WebpageAASHTO Case Study

J-Turns Analysis

Missouri
J-turns reduced fatal and injury crashes by 54% and right-angle crashes by 80%.
Missouri J-Turns WebpageUniversity of Missouri ArticleAASHTO Case Study

Lane Constrictor Intersection Statewide Implementation

Minnesota
Lane constrictor intersections reduced fatal and injury crashes in Minnesota by 20%.
Traffic Safety Evaluation of Lane Constrictors ReportTRB Project PageAASHTO Case Study

J-Turn Statewide Implementation

Minnesota
J-turn intersections reduced angle crashes by 67% and fatal and serious injury angle crashes by 87%.
Minnesota J-Turn WebpageJ-Turn Driver TutorialAASHTO Case Study

Idaho’s US-20 Expansion from SH-55 to Locust Grove

Idaho
US-20 expansion and reflective backplating on signals reduced serious injury and fatal crashes by 75%.
Project Overview FlyerAASHTO Case Study

Exploring the Safety Benefits of All-Way Stop Control at Low-Volume Unsignalized Intersections

Delaware
All-Way Stop Control (AWSC) at low-volume intersections reduced fatal crashes by 75% and injury crashes by 90%.
Roadway Safety Foundation Case StudyNews ReleaseAASHTO Case Study
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