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Unsignalized Intersections

Technical Implementation & Tools
Research
Resources

Technical Implementation & Tools

NCHRP Report 500: Volume 05: A Guide for Addressing Unsignalized Intersection Collisions [HTML, PDF 1.41 MB]
Unsignalized intersections pose a special problem for potential collisions because of the priority of traffic flow on the main road, particularly in rural and suburban areas. This guide addresses objectives for reducing collisions in unsignalized intersections, either by improving the intersections and their approaches, or addressing driver compliance.
TCRP Report 112: Innovative Pedestrian Treatments at Unsignalized Crossings [PDF 3.66 MB]
Strategies to Address Nighttime Crashes at Rural, Unsignalized Intersections [PDF 2.69 MB]
Center for Transportation Research and Education, Iowa State University, 2008 (IHRB Project TR-540, CTRE Project 05-220)

Research

Active Projects

Innovative Operational Safety Improvements at Unsignalized Intersections
Start date: 2006/8/3: End date: 2008/2/2
Status: Active
Source Organization: Florida Department of Transportation
High Crash Risk Unsignalized Intersections
Start date: 2005/9/2
Source Organization: Arizona Department of Transportation
Mitigating Crashes at High-Risk Rural Intersections with Two-Way Stop Control
Start date: 2005/7/1
Source Organization: Kansas Department of Transportation
Design Guidelines for Stop-Controlled Intersections along Curved, High-Speed Major Road Alignments
Start date: 2006/7/1: End date: 2008/9/30
Source Organization: Nebraska Department of Roads
Date Added: 07/25/2006

Resources

Training

Intersection Safety Workshop, FHWA-NHI-380077

Presentations

Safety at Unsignalized Intersections NEW
Unsignalized Intersection Safety Strategies NEW
NCHRP Report 500, Volume 5: A Guide for Addressing Unsignalized Intersection Collisions

Program Contact

Ed Rice
ed.rice@dot.gov
202-366-9064

What's New

FHWA Guidance Memo Contains Provisions to Improve Intersection Safety

Presentation: Safety at Unsignalized Intersections

Presentation: Safety Aspects of Roundabouts

Presentation: Unsignalized Intersection Safety Strategies (NCHRP Report 500, Vol. 5)

Presentation: Signalized Intersection Safety Strategies (NCHRP Report 500, Vol. 12)

Highlights

Presentation: Safety at Signalized Intersections

Presentation: Red Light Running

Strategic Intersection Safety Program Guide