Case Study Tag: Design

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WISDOT’s Approach to Reducing Intersection Crashes

Wisconsin
Intersection safety improvements and data enhancements prioritized effective safety countermeasures, leading to improvements at 175 intersections.
Intersection WebpageICE ResourcesSafety Certification ProcessAASHTO Case Study

Safety Design Build 1.0 and 2.0

Missouri
Design Build 1.0 WebpageDesign Build 2.0 WebpageAASHTO ArticleAASHTO 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

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

MD 187 (Old Georgetown Road) Quick Build Lane Reallocation to Address Bicyclist Safety

Maryland
Lane reallocation for new bicycle lanes on MD 187 reduced bicyclist fatal and injury crashes, and improved safety for vulnerable road users.
Community Meeting PresentationProject AnnouncementReport to General AssemblyAASHTO 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

Reconstruction, Widening, and Signalization at the Intersection of West Karcher Road (SH-55) and Lake Avenue

Idaho
Reconstruction and signalization at SH-55 and Lake Avenue reduced serious injury and fatal crashes by 100%
AASHTO Case Study

16th Street NW Bus Priority Project Analysis

District Columbia
16th Street NW Bus Priority Project improved bus travel times by 8-15% and reduced crashes by 28%.
Project Website, Report, and Story MapAASHTO 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
Other keywords:
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