Field evaluation of unlighted overhead guide signs using older drivers : executive summary report.

Zwahlen, Helmut T.; Ohio University. Ohio Research Institute for Transportation and the Environment. Human Factors and Ergonomics Laboratory

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Field evaluation of unlighted overhead guide signs using older drivers : executive summary report.

2003-08-01
By Zwahlen, Helmut T.

[PDF-24.71 KB]

English

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Details:

Creators:

Zwahlen, Helmut T.
Corporate Creators:

Ohio University. Ohio Research Institute for Transportation and the Environment. Human Factors and Ergonomics Laboratory
Corporate Contributors:

Ohio. Office of Traffic Engineering ; United States. Federal Highway Administration

Ohio. Office of Traffic Engineering ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Aged Drivers Evaluation Luminaires Overhead Traffic Signs Retroreflectivity Traffic Signs And Signals--Testing
Publication/ Report Number:

FHWA/OH-2003/015
Resource Type:

Tech Report
Edition:

Executive summary report.
Corporate Publisher:

Ohio Research Institute for Transportation and the Environment. Human Factors and Ergonomics Laboratory
Abstract:

Problem: In the preceding Unlighted Overhead Guide

Sign Feasibility Study, it was determined that

the lighting of overhead guide signs on

freeways could be eliminated if white

microprismatic Type VII or Type IX legends

were used on green beaded Type III

backgrounds. Because the expert panel in that

study was limited to ODOT engineers who

were relatively young (average age 38), it was

considered necessary to conduct a second

study to ensure that these unlighted overhead

guide signs would meet the needs of older

drivers, who have typically degraded visual

capabilities. Additionally, there was interest

in evaluating Type VIII and m icroprismatic

Type III sheeting materials, which were not

included in the first study.
Format:

PDF
Funding:

State Job No. 14812(0)
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:eb0dea9c60892b9025877afd283c5317bcdc7206737634e37684e7de883dbcb8
Download URL:

https://rosap.ntl.bts.gov/view/dot/17522/dot_17522_DS1.pdf
File Type:

No Additional Files

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Field evaluation of unlighted overhead guide signs using older drivers : executive summary report.

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