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Understanding the MUTCD Retro Rule

Starting with the publishing of the 2009 edition of the Manual on Uniform Traffic Control Devices (MUTCD) agencies have been scrambling to understand what they need to do to be compliant with the rules governing retroreflectivity minimums of their … [Read More...]

Retroreflectometer Laboratory Measurements

Retroreflectometer Applications

Laboratory measurement of retroreflective materials is accomplished using tightly controlled procedures. These procedures are defined and controlled by the American Society for Testing of Materials (ASTM). The ASTM procedures for laboratory … [Read More...]

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