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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
Turner-Fairbank logo
OFFICE OF RESEARCH, DEVELOPMENT, AND TECHNOLOGY AT THE TURNER-FAIRBANK HIGHWAY RESEARCH CENTER

Evaluation of Additional Alternative Arrow Types and Sizes for Overhead Arrow-per-Lane (OAPL) Guide Signs

Project Information

Project ID:
FHWA-PROJ-20-0051
Project Abstract:

The objective of this project is to conduct a study to explore and evaluate the following with drivers from urban and rural regions:

1) the effectiveness of the alternatives for Partial-width Overhead Arrow-per-Lane (OAPL) guide signs for single and multiple exits.

2) the alternative arrow sizing for partial-width OAPL guide signs, including arrow height, proportionality, and form proportionate to the size of the sign legend.

The sign study shall address the following:

  • Drivers’ comprehension of partial-width OAPL guide sign alternatives.
  • Drivers’ understanding of the roadway and exit lane geometry associated with partial-width OAPL guide sign alternatives, especially for two exits closely spaced.
  • If the drivers’ comprehension and understanding of the sign alternatives and roadway geometry changes based on different locations of the sign legend and “EXIT ONLY” message, Drivers’ lane changing behavior for each signing alternative, Drivers’ comprehension of the arrows.
  • Time required for drivers’ to comprehend each arrow size and signing alternative.
  • Drivers’ preferences among the alternatives of arrow sizes and signs.
Project Status:
Active
Project Funding Amount (Contract Award Amount):
$261,995.00
Start Date:
End Date:
Public Access Plan:
Yes
Laboratory:
Grant/Contract ID:
  • 693JJ320F000393
FHWA Program Area:
  • Safety
Fiscal Year / AMRP Program / AMRP Activity:
  • FY 2002-2022 / Safety / Safety Design and Operations
FHWA Activity:
  • Traffic Control Device Pooled Fund

AMRP = Annual Modal Research Plan

Contact Information

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:
Leidos