A reflectance measuring system for field use : final report on Alabama State Highway Department, Project 930-076.

Author(s)
Webb, W.E. & Dudgeon, J.E.
Year
Abstract

A portable reflectance measuring system suitable for in situ measurement of road signs, pavement markers and road stripes has been constructed. The reflectometer has adequate sensitivity to allow measurements of road stripes at grazing incidence and to permit measurements to be made from off-the-road locations, thus avoiding obstructing traffic or exposing the operating personnel to unnecessary hazards. The use of phase-lock detection techniques to eliminate background radiation allows measurements to be made on a sun-lit target. The instrument's spectral response simulates the human photopic response when viewing under a 2856K (CIE standard source A) lamp as required by federal specification LS-300A.

Request publication

6 + 13 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

Publication

Library number
B 14434 /73.1/
Source

Alabama, University of Alabama, College of Engineering, 1977, III + 63 p., 7 ref.; HPR report No. 82 / NTIS PB-283 133

Our collection

This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.