Case Study Filter: Rural Roads

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Two-Way to All-Way Stop Control

New Hampshire
When all-way stop control (AWSC) was applied as a systemic safety improvement in rural areas of New Hampshire, total crashes reduced by 71%; 90% in injury crashes, and 75% in fatal crashes.
NHDOT Newsletter ArticlePress Release, ConcordPress Release, SalisburyPresentation, Chester2024 Safety Summit Poster

Safe Truck Mobility for North Dakota Winter Roads

North Dakota
North Dakota Highway Patrol and North Dakota DOT studied crash risk and travel disruption due to severe winter storms through a Safe System lens. They found several proactive opportunities for safe truck mobility during winter storm events.
Research ReportResearch BriefTRID Record2024 Safety Summit Poster

Data for Proactive Road Safety: Continuous Pavement Friction Measurement

Kentucky
Pavement Friction Management (PFM) using Continuous Pavement Friction Measurement (CPFM) is a proactive approach for managing pavements for safety throughout the roadway lifecycle. Taking a lifecycle approach to designing, specifying, and maintaining friction performance saved Kentucky more than $1 billion annually and reduced fatal and severe crashes by up to 24%.
FHWA Case StudyPresentation SlidesUSDOT Flyer2024 Safety Summit Poster

Prioritizing Safe System Elements Along a Rural Continuum

FHWA
This pilot effort created a new way of looking at rural safety needs on a continuum. The project used six characteristics: block size, distance to fire stations, distance to public schools, distance to Level 1 & 2 trauma centers, intersection density, and undeveloped land.
2020 Census Block MapsHomeland Infrastructure Foundation-Level Data (HIFLD)National Transportation Atlas Database (NTAD)USDA National Land Cover Database2024 Safety Summit Poster

Pavement Marking Retroreflectivity

FHWA
The Final Rule on maintaining pavement marking retroreflectivity goes into effect September 6, 2026. Agencies can use recommended methodologies to better prioritize budgets, maximize the life of pavement markings, and improve roadway safety.
Methods ReportMUTCD 11th EditionMethodology Videos2024 Safety Summit Poster

American Samoa Road Safety

American Samoa
The rugged terrain and high-sloped roadsides of Pacific islands is prone to rockfall, landslides, and tidal waves. American Samoa employs a variety of strategies and traffic devices to improve safety.
Highway Safety Plan 2024-262024 AASHTO Safety Summit Poster

Using Innovative Financing to Expedite Rural Safety Improvements

Oklahoma
Innovative financing expedited rural safety improvements, reducing project timelines and both crash costs and project costs.
Build America Package 1Build America Package 5Press ReleaseAASHTO 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

Roundabouts at High-Speed Intersections in North Carolina

North Carolina
Roundabouts at high-speed intersections reduced total crashes by 41% and fatal and injury crashes by 79%.
Evaluation of Roundabouts on High-Speed RoadwaysRoundabouts WebpageAASHTO Case Study
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