Evaluation of portable retroreflectometer for use on pavement marking materials.

Shepard, Frank D

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Evaluation of portable retroreflectometer for use on pavement marking materials.

1981-01-01
By Shepard, Frank D

File Language:

English

Details

Creators:

Shepard, Frank D
Corporate Creators:

Virginia Highway & Transportation Research Council
Subject/TRT Terms:
- Reflectometer--Testing
- Road markings
Publication/ Report Number:

VHTRC 82-R25
Resource Type:

Tech Report
Geographical Coverage:

Virginia
Corporate Publisher:

Virginia Transportation Research Council (VTRC)
Abstract:

The subjective rating of the night visibility of pavement marking materials is difficult as it can be influenced by many variables. In an attempt to provide an improved method of determining the night visibility of these materials, a portable retroreflectometer was fabricated, and its precision and accuracy in determining night visibility were evaluated. It was concluded that the apparatus can be used to accurately measure the relative amount of reflected light for the entrance and observation angles built into it.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/19008/dot_19008_DS1.pdf
File Type:

[PDF - 1.49 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:dbf3dcb7f3bc7c763170f28f5107f9b8dbefb975765bf294f8d321d71ceee442

File Language:

English

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