This fact sheet details the application of an innovative end-of-queue warning system developed by the Texas A&M Transportation Institute to reduce the risk of crashes on a project to widen 96 … [Read more...] about Innovative End-of Queue Warning System Reduces Crashes Up to 45%
Traffic Queuing
Work Zone Data Collection & Analysis: What, Why, and How
This podcast is a companion to the Work Zone Safety Data Collection and Analysis Guide, which was also developed under the Work Zone Safety Grant and is available at … [Read more...] about Work Zone Data Collection & Analysis: What, Why, and How
Work Zone Lane Closure Analysis Model
At the Alabama Department of Transportation (ALDOT), the tool used by traffic engineers to predict whether a queue will form at a freeway work zone is the Excel-based "Lane Rental Model" developed at … [Read more...] about Work Zone Lane Closure Analysis Model
Assessment of the Effect of Freeway Posted Speed Limit Reduction on Vehicular Delay at a Work Zone
The reduction of posted speed limit at a freeway work zone plays an important role in ensuring safety of transportation system users and construction workers. However, it increases vehicular delay. … [Read more...] about Assessment of the Effect of Freeway Posted Speed Limit Reduction on Vehicular Delay at a Work Zone
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
WorkZoneQ User Guide for Two-Lane Freeway Work Zones
WorkZoneQ was developed in Visual Basic for Applications (VBA) to implement the results of the previous study, “Queue and Users’ Costs in Highway Work Zones.” This report contains the WorkZoneQ user … [Read more...] about WorkZoneQ User Guide for Two-Lane Freeway Work Zones