Changeable message signs (CMSs) and dynamic speed displays (DSDs) for speed management applications have been deployed to address multiple situations. These have often been reported to produce … [Read more...] about Preliminary Evaluation of Dynamic Speed Displays with Conditional Messaging
Traffic Speed
Comparison of Vehicle Speeds Adjacent to Maintenance Work Zones with and Without a Mobile Barrier
Highway maintenance and construction activities are oftentimes performed in a travel lane, median, or shoulder adjacent to vehicles traveling at relatively high speeds and in close proximity to the … [Read more...] about Comparison of Vehicle Speeds Adjacent to Maintenance Work Zones with and Without a Mobile Barrier
Calibration of VISSIM for Freeway Work Zones with Time-Varying Capacity
This paper presents a systematic procedure for calibration of a VISSIM model to replicate time dependent capacity, speed, and queue length for a 2-to-1 freeway work zone. The procedure models time … [Read more...] about Calibration of VISSIM for Freeway Work Zones with Time-Varying Capacity
Driving Speed Behavior of Cars and Trucks on Six-Lane Highway Work Zone Considering Lane and Location Deviation
Work zones are not only traffic bottlenecks, but also critical points for the safety of both vehicle occupants and workers. Vehicle speed is a key factor to estimate traffic efficiency and understand … [Read more...] about Driving Speed Behavior of Cars and Trucks on Six-Lane Highway Work Zone Considering Lane and Location Deviation
Evaluation of Spatial and Temporal Speed Limit Compliance in Highway Work Zones
Typically, speed limits are reduced in work zones to safely accommodate construction activities and motorists on the roadway. This paper presents a methodology to evaluate the temporal and spatial … [Read more...] about Evaluation of Spatial and Temporal Speed Limit Compliance in Highway Work Zones
Modeling Speed-Flow Relationship and Merging Behavior in Work Zone Merging Areas
This paper aims to investigate the speed-flow relationship and drivers' merging behavior in work zone merging areas. It first proposes lane-based speed-flow models, incorporating traffic conflicts … [Read more...] about Modeling Speed-Flow Relationship and Merging Behavior in Work Zone Merging Areas