Every year, over 60,000 work zone crashes are reported in the United States. Such work zone crashes have resulted in over 4,400 fatal and 200,000 non-fatal injuries in the last 5 years. Apart from the … [Read more...] about Connected Simulation for Work Zone Safety Applications
Mathematical Models
Applying Clustered KNN Algorithm for Short-Term Travel Speed Prediction and Reduced Speed Detection on Urban Arterial Road Work Zones
This study developed and verified a travel speed prediction model based on the travel speed and work zone statistics collected from the advanced traffic management system (ATMS) real-time data in … [Read more...] about Applying Clustered KNN Algorithm for Short-Term Travel Speed Prediction and Reduced Speed Detection on Urban Arterial Road Work Zones
Use of Virtual Reality to Minimize the Spread of COVID-19 on Construction Sites
The University of New Brunswick (UNB) first developed a virtual reality documentation (VR Doc) system in 2006 and has continued to make improvements. VR Doc has evolved into a web-based interface for … [Read more...] about Use of Virtual Reality to Minimize the Spread of COVID-19 on Construction Sites
Improved Traffic Analysis Methodology for Lane Closure on Two-Lane Highway Work Zone
Lane closures on two-lane highways allow a single lane to be used for both directions of traffic alternatively and this negatively impact operational performance. The sixth edition of the Highway … [Read more...] about Improved Traffic Analysis Methodology for Lane Closure on Two-Lane Highway Work Zone
Issues With Work Zone Free Flow Speed Computation in 6th Edition HCM and Proposed Improvements
Free flow speed (FFS) and capacity of work zones (WZ) directly affect queue length and delay in the WZ. The 6th Edition of Highway Capacity Manual introduced a new model to estimate WZ FFS and … [Read more...] about Issues With Work Zone Free Flow Speed Computation in 6th Edition HCM and Proposed Improvements
Calibration and Validation Methodology for Simulation Models of Intelligent Work Zones
Intelligent work zone (IWZ) systems use innovative technologies in real time to mitigate the negative impacts of work zones on the traveling public. The automatic queue detection (AQD) system is one … [Read more...] about Calibration and Validation Methodology for Simulation Models of Intelligent Work Zones