U.S. Department of Transportation
Federal Highway Administration
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Washington, DC 20590

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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations



Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-10-0033
Project Name:   Dilemma Zone Intelligent Transportation Systems for High-Speed Intersections
Project Status:   Active
Start Date:  May 1, 2014
End Date:  June 10, 2014
Contact Information
Last Name:  Huang
First Name:  Peter
Telephone:  202-493-3484
E-mail:  peter.huang@dot.gov
Office:   Office of Operations Research and Development
Team:   Trans Ops Concepts and Analysis Team [HRDO-20]
Program:   Small Business Innovation Program (SBIR) (2% of Adjusted CA)
Laboratory:   Saxton Transportation Operations Laboratory
Project detail
Roadmap/Focus area(s):   Intersections
Project Description:   The project will include hardware and software development and field testing.
Goals:   The key project objective is to reduce the risk of the dilemma zone, which is a safety problem at high-speed intersections when a driver sees a yellow light and does not know whether to go or stop. This project will develop a warning system to help drivers overcome the dilemma zone problem.
Field Test:   The field test was performed at Turner-Fairbank Highway Research Center's (TFHRC's) Saxton Transportation Operations Laboratory (TOL) testbed, and on public roads in Maryland and Virginia.
Product Type:   Hardware
Research report
Test Methodology:   Simulation and field testing
Expected Benefits:   The expected benefit is improved safety at high-speed intersections.
Deliverables: Name: Final report and a prototype system.
Product Type(s): Research report, Hardware, Software
Description: The prototype system will be installed at Turner-Fairbank Highway Research Center (TFHRC) for testing and demo. The final report will be published for public distribution.
FHWA Topics:   Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:   Intersections
Dilemma Zone
Traffic Signals
FHWA Disciplines:   Operations
Subject Areas:   Safety and Human Factors
Operations and Traffic Management


Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101