Evaluation of Traffic Markings in Cold Regions

Abstract

This paper summarizes a research project that evaluated the performance of traffic marking materials used in Alaska and other northwestern states. This study was conducted by reviewing existing reports, past studies, and information databases; conducting a field survey that rated existing traffic marking; conducting field measurements of retroreflectivity of traffic markings using a reflectometer; and conducting a subjective opinion survey about the performance of traffic markings used in cold regions. Results summarized in this paper include impacts of traffic marking patterns on driver behavior, minimum reflectivity requirements, a general evaluation of traffic marking materials, field survey, reflectivity performance, subjective survey evaluation, and final conclusions. The traffic marking material types evaluated in this study included traffic paint, thermoplastics, preformed tapes, and methyl methacrylate. These traffic marking materials have been applied in Alaska and some northern states.