| Title | Instrumental Color Measurement of Retroreflective Highway Sign Materials |
|---|---|
| Record ID | 47925 |
| Personal Name Creator |
Nimeroff, Isadore |
| Corporate Creator | United States. Department of Transportation. Federal Highway Administration. Office of Research |
| Corporate Contributor |
National Bureau of Standards |
| Publisher | United States. Department of Transportation. Federal Highway Administration. Office of Research |
| Publication Date | 19711101 |
| Language | English |
| 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. |
| Rosap ID | dot:41866 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/41866 |
| TRT Terms | Retroreflectivity; Traffic signs; Color |
| Geographical Coverage |
United States |
| Report Number | FHWA-RD-71-001 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/47000/47900/47925/FHWA-RD-71-1.pdf |
| Format | |
| Database | NTL Digital Repository |