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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation
OFFICE OF RESEARCH, DEVELOPMENT, AND TECHNOLOGY AT THE TURNER-FAIRBANK HIGHWAY RESEARCH CENTER

Freeway Guide Sign Performance at Complex Interchanges: Reducing Information Overload

Project Information

Project ID:
FHWA-PROJ-20-0023
Project Abstract:

Complex freeway interchanges are known to be difficult to navigate. Transportation agencies are urgently in need of detailed and performance-based guidelines for guide sign design at freeway interchanges.

This study will fully demonstrate the power of the Strategic Highway Research Program (SHRP) 2 Naturalistic Driving Study data towards the following much needed research breakthroughs: 

  • Field data-based freeway interchange guide sign information overload thresholds (per location and for sign sequences) by roadway, traffic, background, and visibility conditions.
  • Impacts of sign information complexity levels on driver behavior relevant to safety.
  • Guidelines to reduce information overload and improve sign spreading.
  • Recommendations for changes to existing freeway signing standards and manuals.

The findings of this project will provide practical and field data-supported sign performance metrics at complex freeway interchanges that will likely significantly improve existing signing guidelines and tools. Freeway interchanges are crash hotspots; therefore, the findings of this study can be directly translated to large reductions in fatalities and injuries.

Project Status:
Active
Project Funding Amount (Contract Award Amount):
$349,785.00
Start Date:
End Date:
Public Access Plan:
Yes
Laboratory:
  • Safety Training and Analysis Center (STAC)
Grant/Contract ID:
  • 693JJ320F000050
FHWA Program Area:
  • Safety
FHWA AMRP Program:
  • Safety Data and Analysis
FHWA Activity:
  • Naturalistic Driving Study Pooled Fund

Contact Information

First Name:
Charles
Last Name:
Fay
Phone Number:
(202) 493-3336
Email Address:
Team:
Safety Data and Analysis Team
Office:
Office of Safety and Operations Research and Development
Office Code:
HRSO-20

Management Organizations

Sponsor Organization

Organization Role:
Sponsor Organization
Organization:
Federal Highway Administration: Office of Research, Development and Technology - Office of Safety and Operations Research and Development

Performing Organization

Organization Role:
Performing Organization
Organization:
Virginia Tech Transportation Institute