Improving Regulatory Speed Limit Management in Texas Work Zones

Project Description

Speed limits in work zones are determined by TxDOT based on a number of site-specific factors, including the type of work being done in the work zone. Researchers conducted field studies to better understand the relationship between the site-specific factors used to justify reduced speed limits in work zones and motorists perceptions of the need to reduce their speed. The researchers also examined the technologies available for better managing short-term work zone speed limits. They evaluated flexible reflective roll-up static work zone speed limit signs, electronic work zone speed limit signs, trailer-mounted static work zone speed limit signs with flashing beacons, and full-matrix portable changeable message signs (PCMS). The researchers determined how motorists respond to the devices by assessing the public's understanding of them. As a result of their study, several recommendations were made by researchers based on the type of work zone activity and its configuration.

Project Publications

Studies to Improve the Management of Regulatory Speed Limits in Texas Work Zones 0-5561-1

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