Instrumental Color Measurement of Retroreflective Highway Sign Materials

Nimeroff, Isadore; United States. Federal Highway Administration. Office of Research

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Instrumental Color Measurement of Retroreflective Highway Sign Materials

1971-11-01
By Nimeroff, Isadore

[PDF-923.81 KB]

English

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Details:

Creators:

Nimeroff, Isadore
Corporate Creators:

United States. Federal Highway Administration. Office of Research
Corporate Contributors:

National Bureau of Standards
Subject/TRT Terms:

[+]

Color Retroreflectivity Traffic Signs
Publication/ Report Number:

FHWA-RD-71-001
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration. Office of Research
Abstract:

The colorimetric properties of seventy-four samples of retroreflective highway sign materials were obtained at nbs by visual measurements outdoors using five observers having normal color vision, and by three photoelectric tristimulus colorimeters and a recording spectrophotometer. Cooperative measurements by two industrial color laboratories are also reported. The results obtained indicate that measurements made with five colorimeters having 45,0 deg. Geometry are in general agreement. Measurements made with five instruments having diffuse illumination and unidirectional viewing geometry are also in general agreement; in addition, these measurements agree more closely with the visual color evaluations than those made with the 45,0 deg. Geometry instruments.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:bf9b956420682393bde1919a48b472853dadac1dc923022d8fa3d70bc7b0527c
Download URL:

https://rosap.ntl.bts.gov/view/dot/41866/dot_41866_DS1.pdf
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Instrumental Color Measurement of Retroreflective Highway Sign Materials

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