Fluorescent Orange Sign Sheeting Evaluation by a State DOT

The following paper describes the first phase of the Arizona Department of Transportation (ADOT) fluorescent orange sign sheeting evaluation. The general goal of the evaluation was to develop a reasonable list of approved fluorescent orange sign sheeting products while ensuring the approved products will function adequately for the intended purpose. The evaluation used a human factors type test with an expert panel of test subjects. The evaluation resulted in the conditional approval of three fluorescent orange prismatic sign sheeting materials for use on rigid/semi -rigid substrate materials and four prismatic roll-up sign materials. The approval of the materials is conditional, pending a follow-up evaluation after one year of outdoor exposure.