A Control Sign Facility Design to Meet the New FHWA Minimum Sign Retroreflectivity Standards

There currently is limited information about the long-term deterioration behavior of ASTM Type III and IX road signs. The establishment of an experimental sign retroreflectivity measurement facility (ESRMF) could help achieve a better understanding of long-term sign deterioration. An ESRMF is an arrangement of signs in a controlled area that mimics field conditions. The signs in the ESRMF would have their retroreflectivity measured at regular intervals to determine how it deteriorates as a function of time. This paper describes this proposed facility. A template is presented that can be used by agencies nationwide to ensure compliance with Federal Highway Administration minimum retroreflectivity standards. The authors believe that the ESRMF testing facilities should be built in each of the major climatic regions of the U.S. to best determine how signs in these areas deteriorate over time.


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  • Accession Number: 01147905
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 17 2010 2:23PM