Work Zone-Related News - Details
Date Posted: | 10/22/2014 |
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Description: | The Oregon Department of Transportation conducted a research study to investigate the impact of selected traffic control devices on vehicle speeds within highway paving project work zones. The research study, which follows a similar study conducted a year earlier, centered around two case studies on multi-lane paving projects in Oregon. On each case study, the researchers implemented combinations of multiple traffic control devices ("Speed 50" signs, portable changeable message signs (PCMS), and radar speed displays) and evaluated their impact on vehicle speed. The research findings suggest using a combination of reduced speed limit signs, radar speed monitoring displays, and PCMS signs on either trailers or rollers. The results of the present study complement those of the prior study and, combined with the prior study, provide ODOT with guidance on the selection of traffic control measures for freeway preservation projects. |
URL: | http://www.ops.fhwa.dot.gov/wz/traffic_mgmt/wzsm.htm#res |
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