Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
The IWZ Toolbox has been prepared as a guideline for selecting an appropriate Intelligent Work Zone (IWZ) System for existing work zone traffic issues and to mitigate anticipated issues on scheduled p…MoreChangeable Message Signs
Featured Items:
Smart Speed Warnings Alert Drivers Nearing Freeway Work Zones (Publication)
Resource Type: News and Other Non-research Articles
Speeding in highway work zones has caused unexpected congestion and crashes. To combat this problem, the Minnesota Department of Transportation developed a Smart Work Zone Speed Notification (SWZSN) s…MoreARTBA’s Online Learning Center Promotes Safety (Publication)
Resource Type: News and Other Non-research Articles
The ARTBA Online Learning Center offers self-directed courses on a range of transportation construction topics. Those courses are developed by industry experts to help you train for career advancement…MoreNDDOT Deploys New Traffic Warning System for Construction Season (Publication)
Resource Type: News and Other Non-research Articles
The North Dakota Department of Transportation is deploying a new traffic warning system on Interstate 94 to reduce crashes during construction season. New interactive caution signs are connected to se…MoreCumbria Highways Signs are Multilingual (Publication)
Resource Type: News and Other Non-research Articles
Highways England has started giving warning in nine foreign languages on several of its portable electronic variable messages signs to better communicate road work and closure information to lorry dri…MoreCost Benefit: Wichita Eases Workzone Congestion (Publication)
Resource Type: News and Other Non-research Articles
Delays in work zones have caused about 10% of highway congestion in the US. The lack of accessible real-time traffic information to help motorists is a major contributor. One effective solution is the…MoreEvaluation of the Smart Work Zone Speed Notification System (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Smart Work Zone Speed Notification (SWZSN) system aims to alleviate congestion, queuing, and rear end crashes in work zones by informing drivers of the speed of the downstream segment using a type…MoreResearch on the Relationship Between Dynamic Message Sign Control Strategies and Driving Safety in Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Several studies have researched the effect of dynamic message signs (DMSs) on the driving safety in work zones. However, only a few studies have examined the design of DMS control strategies in work z…MoreToronto Safe Work Zone Pilot Brings Highway Safety Concept to City (Publication)
Resource Type: News and Other Non-research Articles
Highway drivers have become accustomed to bold signs in work zones, advising them about lane reductions and travel delays. The City of Toronto is testing a similar concept as part of its Smart Work Zo…MoreODOT Making Changes After Eighth Crashes off I-270 (Publication)
Resource Type: News and Other Non-research Articles
Eight trucks went off the highway since April. Those crashes have coincided with highway lanes narrowing and shifting caused by an I-270 widening project. To prevent such crashes in the future, Ohio D…MoreIowa Work Zones are Getting Smarter (Publication)
Resource Type: News and Other Non-research Articles
Intelligent Transportation Systems (ITS) tools including traffic sensors and cameras are deployed in 28 state highway work zones in Iowa. Those tools sent data on traffic speed, queue length, and imag…MorePractices in One-Lane Traffic Control on a Two-Lane Rural Highway (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Temporary traffic control, also known as maintenance of traffic, is critical to minimizing congestion and maintaining mobility during planned and unplanned activities as well as providing a safe work …MoreTheory of Safety Surrogates Using Vehicle Trajectories in Macroscopic and Microscopic Settings: Application to Dynamic Message Signs Controlled Traffic at Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper presents a new mathematical framework for obtaining quantitative safety measure using macroscopic as well as microscopic traffic data. The safety surrogate obtained from the macroscopic dat…MoreTemporary Construction Signage: Driver Preferences for Work Zone Safety (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A current concern in roadway construction is the behavior of drivers in response to the location and frequency of construction and permanent signage prior to and within the construction work zone. A r…MoreDigital Message Signs Being Installed Throughout Interstate 75 (Publication)
Resource Type: News and Other Non-research Articles
The Florida Department of Transportation is installing digital message signs on Interstate 75 as part of their $12 million project. This project will hopefully assist motorists with current travel inf…MoreIncreasing Speed Limit Compliance in Motorway Work Zones: A Human System Integration Approach (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding in motorway work zones lowers the perceived safety of road workers and increases the accident risks of traffic participants. In a work zone, traffic participants share the road with road work…MoreUsing Smartphones to Deliver Effective In-Vehicle Work Zone Messages (Publication)
Resource Type: News and Other Non-research Articles
This blog post provides a summary of what have been done with the Minnesota Department of Transportation (MnDOT) study on using smartphones to deliver in-vehicle work zone messages.MoreEffectiveness of End-of-Queue Warning Systems and Portable Rumble Strips on Lane Closure Crashes (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Texas Department of Transportation has been deploying work zone intelligent transportation systems in an effort to reduce the number of work zone crashes along the Interstate 35 (I-35) corridor. R…MoreEvaluating the Effects of Queue Warning Systems on Freeway Work Zones Using Traffic Simulation Software (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are a key component of the rehabilitation efforts that travelers on the U.S. national highway system interact with increasingly every day. Roadway construction, rehabilitation, and maintena…MoreIn-Vehicle Work Zone Messages (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones present an increased risk to drivers and the work crew. To mitigate these risks, this study investigated the potential effects of in-vehicle messages to communicate work zone events to the …MoreAnalyzing and Improving the Performance of Dynamic Message Sign Reporting Work Zone—Related Congestion (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Dynamic message sign (DMS) systems aim to provide realistic, reliable, and real-time traffic information to roadway users. This study investigated the performance of a DMS present at a work zone that …MoreWork Zone Sign Design for Increased Driver Compliance and Worker Safety (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Many studies have investigated the effect of dynamic message signs (DMS) on drivers’ speed reduction and compliance in work zones, yet only a few studies have examined the design of sign content of …MoreAnalyzing and Improving the Performance of Dynamic Message Sign Reporting Work Zone Related Congestion (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Dynamic Message Sign (DMS) systems aim to provide realistic, reliable, and real-time traffic information to roadway users. This study investigates performance of DMS present at work zone which warn dr…MoreBest Practices for Maximizing Driver Attention to Work Zone Warning Signs (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Studies have shown that rear-end crashes in the advance warning area for a work zone are the most common type of work zone crashes. Driver inattention (or distraction) is reported as the most commo…MoreImpact of Advisory Signs on Vehicle Speeds in Highway Nighttime Paving Project Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Pavement preservation projects typically require construction workers to conduct their work in close proximity to ongoing traffic. During paving operations, workers are located within a protected work…MoreVisual Warning System for Worker Safety on Roadside Workzones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Growing traffic on US roadways and heavy construction machinery on road construction sites pose a critical safety threat to construction workers. This report summarizes the design and development of a…MoreInnovative End-of Queue Warning System Reduces Crashes Up to 45% (Publication)
Resource Type: Brochures and Fact Sheets
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 mile…More