Smart work zones (SWZs) are being deployed around the United States as a way to inform drivers dynamically about traffic conditions within a work zone. SWZs use sensors to detect traffic flow … [Read more...] about Assessing the Benefits of Smart Work Zone Systems
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Work Zone Crashes Involving Traffic Control Devices, Safety Features, and Work Vehicles and Equipment
This paper examines 461 work zone crashes involving Category 3 and Category 4 work zone safety features, portable traffic signs, and work vehicles and equipment. Category 3 devices include crash … [Read more...] about Work Zone Crashes Involving Traffic Control Devices, Safety Features, and Work Vehicles and Equipment
Data Collection Needs for Work Zone Incidents
Roadway construction has become a common fixture in our daily travels. According to the Federal Highway Administration, fatalities in highway work zones were up nearly 50% between 1997 and 2003. In … [Read more...] about Data Collection Needs for Work Zone Incidents
Influence of Heavy Vehicles on Traffic Flow in Freeway Work Zones
The proportion of heavy vehicles is very high on Chinese highways. Slowly moving heavy vehicles cause additional delay in a work zone especially when there is only one open lane in the work zone. In … [Read more...] about Influence of Heavy Vehicles on Traffic Flow in Freeway Work Zones
Study on Improving the Worker Safety at Roadway Worksites in Japan
Work-related accidents at construction sites in Japan resulted in 1,001 fatalities and 44,886 injuries in 1996, but by 2005 these had fallen to 487 fatalities and 27,193 injuries. Among accidents at … [Read more...] about Study on Improving the Worker Safety at Roadway Worksites in Japan