New Retroreflectivity Requirements for Signs and Pavement Markings

Section 406(a) of the 1993 DOT Appropriations act required the Secretary of Transportation the insert language into the Manual on Uniform Traffic Control Devices (MUTCD) to include a standard for a minimum level of retroreflectivity that must be maintained for traffic signs and pavement markings. This article summarizes the FHWA’s efforts on developing these minimum requirementd.