A series of field evaluations were performed to assess the speed reduction effects of a speed feedback trailer (SFT) positioned at various locations before and after a median crossover section within … [Read more...] about Evaluating Driver Response to a Speed Feedback Trailer at Median Crossovers Within Freeway Construction Work Zones
Speed Limits
Evaluating Driver Response to Speed Feedback Trailers and Digital Speed Limit Signs Positioned Near the Work Area Within Freeway Construction Work Zones
A series of field evaluations were conducted within work zone lane closures on rural freeways in Michigan to determine 1) the optimal positioning of a speed feedback trailer (SFT) approaching an … [Read more...] about Evaluating Driver Response to Speed Feedback Trailers and Digital Speed Limit Signs Positioned Near the Work Area Within Freeway Construction Work Zones
Examining Driving Stability and Traffic Capacity: A Simulation Study on Appropriate Speed Limits in Expressway Work Zones
In order to obtain proper speed limits in expressway work zones, CarSim and TruckSim software were used to determine the critical car and truck safe speeds and then VISSIM software was used to … [Read more...] about Examining Driving Stability and Traffic Capacity: A Simulation Study on Appropriate Speed Limits in Expressway Work Zones
Investigation of Factors Affecting Crash Severity of Rear-End Crashes With High Collision Speeds in Work Zones: A South Carolina Case Study
The aim of this study is to identify factors that affect injury severity levels of work zone rear-end crashes with high collision speeds (35 mi/hr). Using statewide crash data provided by the South … [Read more...] about Investigation of Factors Affecting Crash Severity of Rear-End Crashes With High Collision Speeds in Work Zones: A South Carolina Case Study
Effects of Speed Feedback Trailer Positioning and Police Enforcement on Vehicular Speeds in Freeway Work Zone Lane Closures
This field study sought to evaluate select strategies for improving compliance with work zone speed limits, which included a speed feedback trailer (SFT) and active police enforcement. The initial … [Read more...] about Effects of Speed Feedback Trailer Positioning and Police Enforcement on Vehicular Speeds in Freeway Work Zone Lane Closures
Work Zone Speed Limits
The purpose of this document is to provide a uniform guideline for the application of speed limits in street and highway work zones. This booklet outlines the guidelines, layouts, and procedures for … [Read more...] about Work Zone Speed Limits