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Unsignalized Intersections

Technical Implementation & Tools
Research
Resources

Technical Implementation & Tools

NEW Proven Safety Countermeasures
Corridor Access Management is featured as one of the nine Proven Safety Countermeasures that are the subject of the 2012 Guidance Memorandum on Promoting the Implementation of Proven Safety Countermeasures.
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
NCHRP Report 500, Volume 5: A Guide for Addressing Unsignalized Intersection Collisions

Program Contact

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

Jeffrey Shaw
jeffrey.shaw@dot.gov
708-283-3524

What’s New

Roundabout Outreach and Education Toolbox

Stop-Controlled Intersection Safety: Through Route Activated Warning Systems

Roundabouts: An Informational Guide, Second Edition (NCHRP Report 672)

Roundabouts Peer-to-Peer Assistance

How to drive a roundabout (WSDOT)

Modern Roundabouts: A Safer Choice

FHWA's Intersection Resources Library CD-ROM

Highlights

Roundabouts Technical Summary

Mini-Roundabouts Technical Summary

Access Management in the Vicinity of Intersections Technical Summary

Intersection Safety Case Studies

Intersection Safety Technologies

Presentation: Intersection Safety

Example Intersection Safety Implementation Plan

Intersection Safety Implementation Plan Workshop

Example Data Analysis Package and Straw Man Outline