Case Study Tag: Lane departure

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Crash Modification Factors for High-Tension Cable Median Barriers in Pennsylvania

Pennsylvania
High-tension cable median barriers reduced cross-median crashes by up to 83%.
ReportPress ReleaseLocal News ArticleAASHTO Case Study

Crash Modification Factors for High Friction Surface Treatments in Pennsylvania

Pennsylvania
High Friction Surface Treatments (HFST) reduced crash frequency by 30% to 76% at curves and intersections.
HFST WebpageVideoAASHTO Case Study

Installation of High-Tension Cable Barrier to Prevent Severe Cross Over Median Collisions

Oklahoma
High-tension cable barriers reduced cross-over median serious injury and fatality collisions significantly.
Local News ArticleAASHTO Case Study

Statewide Deployment of Center Line Rumble Strips

Oklahoma
Centerline rumble strips reduced fatal and serious injury collisions by 18%.
Local News ArticleFHWA GuidanceAASHTO Case Study

Shoulder and Centerline Rumble Strips on Rural Two-Lane Roadways in North Carolina

North Carolina
Rumble strips on rural two-lane roadways reduced lane departure crashes by 30%.
Local News ArticleLocal News ArticleAASHTO Case Study

Enhancing Curve Signing on Rural Two-Lane Roadways in North Carolina

North Carolina
Enhanced curve signing reduced lane departures by 33%, total crashes by 35% and fatal and injury crashes by 41%.
AASHTO Case Study

Examining the Impact of Centerline Rumble Strips on Reducing Rural Two-Lane Head-On Collisions in Maine

Maine
Centerline rumble strips reduced head-on and opposite sideswipe collisions by 28-48%.
Research PaperRumble Strips BrochureAASHTO Case Study
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Access mgt. Behavior Connected & automated vehicles Connected & autonomous vehicles Construction Context Design Electric vehicles Employee safety HSIP Innovation Intersections Land use Lane departure Leadership Outreach & education Planning Project development Quick build Road safety audits Roadway departure Safety cameras Safety planning Systemic approach Technology Training Transit Tribal safety Vulnerable road users Weather Wrong-way driving