Minimum retroreflectivity levels for blue and brown traffic signs
In 2003, the Federal Highway Administration published research recommendations for minimum maintained retroreflectivity (MR) levels for traffic signs. The recommendations included most sign types but not white-on-blue signs or white-on-brown signs. In addition, the 2003 recommended maintained retror...
|Corporate Authors:||, ,|
|Format:||Government Document Online Book|
McLean, VA :
U.S. Dept. of Transportation, Federal Highway Administration, Turner-Fairbank Highway Research Center,
|Online Access:||ONLINE VERSION|
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