Traffic Sign Life Expectancy

Project Details
STATUS

In-Progress

START DATE

09/01/16

END DATE

02/28/19

FOCUS AREAS

Safety

RESEARCH CENTERS InTrans, CTRE, Iowa LTAP
SPONSORS

Iowa Department of Transportation

Researchers
Principal Investigator
David Veneziano

Safety Circuit Rider, LTAP

About the research

At present, there is only a limited understanding of the service life of signage in the field (largely based on manufacturer guidance as opposed to field data and experience). Yet knowing how long a sign will maintain adequate retroreflectivity and remain in acceptable condition is essential in avoiding potentially unnecessary maintenance or replacement costs.

This project will attempt to evaluate the retroreflectivity service life of signage in the field to determine expected sign life values. The information and analysis through this project should be of value to agencies in understanding the service life of signs in the field and more effectively applying their selected management method of sign replacement.

 

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