Performance of Traffic Markings in Cold Regions

摘要

This study evaluated the performance of traffic marking materials used in Alaskaand other northwestern states, including Washington, Idaho, and Oregon. Primarily, this study included reviews of exisiting reports, past studies, and information databases; a filed survey that subjectly rated existing traffic markings in Alaska's central region; field measurements of the retro-reflectivity of trafffic markings marked by using a reflectometer in Alaska's Central region; and a subjective opinion survey about the performance of traffic markings. This report summarizes the findings from this study. The main results summarized in this report include impacts of pavement marking patterns on a driver's behavior, minimum reflectivity requirements, a general evaluation of traffic marking materials, reflectivity performance, subjective survey evaluation, and final conclusions. The traffic marking types evaluated in this study included traffic paint, thermoplastics, preformed tapes, and Methyl Methacrylate. These traffic marking materials have all been applied in Alaska.