Improved business driveway delineation in urban work zones.
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2015-04-01
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Abstract:This report documents the efforts and results of a two-year research project aimed at improving driveway ; delineation in work zones. The first year of the project included a closed-course study to identify the most ; promising driveway delineation alternatives for further study. In the second year of the research project, the ; researchers performed a human factors study of alternative business driveway channelizing treatments in real ; work zones. The purpose of the research was to determine the effectiveness of alternative business driveway ; channelizing treatments over standard drum treatments. The alternative treatments included combinations of ; 18-inch tall low-profile longitudinal channelizing devices and 42-inch tall cones (i.e., grabber cones). Using ; paid participants who drove a instrumented vehicles, the researchers used driver eye-tracking equipment to ; compare differences in drivers’ visual attention while approaching business driveways with the various ; channelization treatments deployed. Other measures of effectiveness (MOEs) considered were detection ; distance, percentage of missed driveways, driver perception/recall of treatments, and driver preferences. ; While differences in the MOE were less pronounced during the day, the alternative channelizing treatments ; generally performed better than the standard drum treatment at night.
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Main Document Checksum:urn:sha256:57f0cf26ebdc5c666d782311d4f2a82a1c19f61655e7b0e927846ce605552c29