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Office of Research, Development and Technology at the Turner-Fairbanks Highway Research Center

Evaluation of Additional Alternatives of, and Arrow Sizes for, Overhead Arrow-Per-Lane Guide Signs

Publication Information

Publication Type:
TechBrief
Publication Number:
FHWA-HRT-23-036
Abstract:

This TechBrief discusses how complex interchanges with multiple exit lanes, including an option lane, can be confusing to navigate. Roadway signs provide navigational, lane assignment, and roadway geometry information that explain complex interchanges to drivers. Well-designed roadway signs help drivers make timely and accurate decisions. Signs that are confusing or that violate driver expectations may lead to unnecessary lane changes, sudden lane changes, and mistakes that may compromise roadway system efficiency and driver safety.

 

 

Recommended citation: Federal Highway Administration, Evaluation of Additional Alternatives of, and Arrow Sizes for, Overhead Arrow-per-Lane Guide Signs (Washington, DC: 2023) https://doi.org/10.21949/1521980

Publishing Date:
March 2023
Posting Date:
Digital Object Identifier:
https://doi.org/10.21949/1521980
Author(s):
Ahmed, Ananna (ORCID: 0000-0002-5353-508X)
Weaver, Starla (ORCID: 0000-0002-9559-8337)
Chao, Szu-Fu (ORCID: 0000-0002-2037-5200)
Marchese, Matthew (ORCID: 0000-0002-6899-8810)
FHWA Program(s):
Research
Safety
AMRP Program(s):
Safety Data and Analysis
FHWA Activities:
Data and Analysis
Subject Area:
Research