Unsignalized Intersection Guide

Approximately 90% of intersections in the United States are unsignalized with over 6,000 fatalities estimated to have occurred at these types of intersections in 2007. It is vital that state and local transportation agencies consider how the design and operation of unsignalized intersections can better address safety performance, operations, multimodal needs, and other impacts. A majority of unsignalized intersections are owned and operated by local agencies. Many smaller jurisdictions do not have professional engineers on staff but must frequently make decisions on treatments at unsignalized intersections. All transportation agencies need practical guidance to assist them in arriving at and justifying these decisions to policy makers and the public. The objective of this research is to develop a comprehensive guide to enhance the safe operation for all users of unsignalized intersections. The guide should be practical and multimodal and aid practitioners in selecting design, operational, maintenance, enforcement, and other types of treatments to improve safety, mobility, and accessibility.


  • English


  • Status: Proposed
  • Contract Numbers:

    Project 03-104

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Derr, B

  • Start Date: 20111130
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 28997

Subject/Index Terms

Filing Info

  • Accession Number: 01463297
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 03-104
  • Files: TRB, RiP, USDOT
  • Created Date: Jan 3 2013 2:21PM