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
Traffic Speed
Safety Impact of Connected Vehicles on Driver Behavior in Rural Work Zones Under Foggy Weather Conditions
Work zone (WZ) safety is one of the paramount goals of the safety community. Safety in WZs is a particular concern under foggy conditions as they represent an exogenous factor contributing to high … [Read more...] about Safety Impact of Connected Vehicles on Driver Behavior in Rural Work Zones Under Foggy Weather Conditions
Using Connected Vehicle Trajectory Data to Evaluate the Impact of Automated Work Zone Speed Enforcement
Work zone safety is a high priority for transportation agencies across the United States. Enforcing speed compliance in work zones is an important factor for reducing the frequency and severity of … [Read more...] about Using Connected Vehicle Trajectory Data to Evaluate the Impact of Automated Work Zone Speed Enforcement
Pennsylvania Study Looks at Work Zone Crashes, Risk Factors
A recent study by Carnegie Mellon University looked at the effects of traffic, weather and other factors impacting the safety of highway work zones and increased accident risks in these areas. … [Read more...] about Pennsylvania Study Looks at Work Zone Crashes, Risk Factors
Evaluation of Work Zone Mobility by Utilizing Naturalistic Driving Study Data, Phase II
The objective of this research was to study work zone mobility by utilizing the second Strategic Highway Research Program (SHRP2) Naturalistic Driving Study (NDS) data. The NDS data provides a unique … [Read more...] about Evaluation of Work Zone Mobility by Utilizing Naturalistic Driving Study Data, Phase II
Analysis of Headway and Speed Based on Driver Characteristics and Work Zone Configurations Using Naturalistic Driving Study Data
The objective of this paper is to analyze headway and speed distribution based on driver characteristics and work zone (WZ) configurations by utilizing Naturalistic Driving Study (NDS) data. The NDS … [Read more...] about Analysis of Headway and Speed Based on Driver Characteristics and Work Zone Configurations Using Naturalistic Driving Study Data