In addition to lower speeds, the difference between vehicle speed and the average speed on the roadway has been identified as a factor in roadway crashes. For work zones, the potential for such speed … [Read more...] about Speed Variation and Safety in Work Zones
Mobile Operations
Mobile and Slow-Moving Operation at Work Zones for Aging Transportation Infrastructure Maintenance
Infrastructure maintenance is very important to the efficiency of our transportation system. In 2020 alone, USDOT spent a total of $24 Billion dollars to preserve national highway systems. In … [Read more...] about Mobile and Slow-Moving Operation at Work Zones for Aging Transportation Infrastructure Maintenance
Influence Range and Traffic Risk Analysis of Moving Work Zones on Urban Roads
There is a body of literature on the influence range and traffic risk of fixed work zones. However, relatively few studies have examined the effect of ubiquitous moving operating vehicles, such as … [Read more...] about Influence Range and Traffic Risk Analysis of Moving Work Zones on Urban Roads
Identification and Characterization of Mobile Work Zones Using Floating Car Data
This paper describes a methodology for the identifying active mobile roadworks zones based on detecting the forward forming shockwave associated with the congestion front with the use of vehicle probe … [Read more...] about Identification and Characterization of Mobile Work Zones Using Floating Car Data
Evaluation Methodology of Leader-Follower Autonomous Vehicle System for Work Zone Maintenance
Mobile and slow-moving operations, such as striping, sweeping, bridge flushing, and pothole patching, are critical for efficient and safe operation of a highway transportation system. However, … [Read more...] about Evaluation Methodology of Leader-Follower Autonomous Vehicle System for Work Zone Maintenance
Iowa DOT Using Audible Attenuators to Increase Short-Term Work Zone Awareness
The Iowa Department of Transportation is employing a number of safety practices including the use of audible attenuators on short-term, stationary, or slow-moving maintenance operations. The … [Read more...] about Iowa DOT Using Audible Attenuators to Increase Short-Term Work Zone Awareness