Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Large trucks have been significantly over-represented in work zone crashes. About one-half of those crashes involved a passenger vehicle running into the back of a large truck. One way to reduce crash…MoreWarning Systems
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SWZ: Technology Applications Types of Applications: Queue Warning
Queue warning systems are designed to quickly detect the presence of queues at the work zone and warning approaching motorists that traffic is slowed or stopped ahead.
Application guidelines … More
Use of drone radar, safety intrusion alarms, CB Wizard, and automated flaggers in work zones (Practice)
TxDOT has used drone radar in both rural and urban work zones, mostly in mobile operations. It was perceived to be somewhat effective as a speed control measure. Problem: It targets only road users wi… More
Use of drone radar, safety intrusion alarms, and CB Wizard in work zones (Practice)
16 units of drone radar were used statewide in Virginia. They were not perceived to be very effective as a speed control measure. A disadvantage was that project personnel had to keep them charged and… More
Smart Phone Based Forward Collision Warning Messages in Work Zones to Enhance Safety and Reduce Emissions (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Collisions in work zones have always been a contributing factor in compromising safety on urban roadways. National Highway Traffic Safety Administration (NHTSA) and State Transportation Authorities ha…MoreUse of drone radar and safety intrusion alarms in work zones (Practice)
Caltrans has used radar speed trailers in work zones and has experimented with other drone-type speed advisory devices. The devices have been effective, especially on high-speed interstate freeways fr… More
Direction Aware Bluetooth Low Energy Based Proximity Detection System for Construction Work Zone Safety (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Over the last decade, the rate of fatality of workers in construction work zones has been of serious concern. One of the most frequent accidents happens due to a ground worker being struck by construc…MoreSouth Dakota Department of Transportation Uses New Technology in Construction Project Near Sioux Falls (Publication)
Resource Type: News and Other Non-research Articles
South Dakota Department of Transportation is using an advance queue detection system on an I-29 project to warn drivers of the construction zone. This technology is still new to South Dakota with cons…MoreITS technologies, lane rental, A+B bidding, queue detection, and other new and innovative strategies (Practice)
Indiana uses ITS technologies, modified form of lane rental, A+B bidding, and queue detection on Indiana lane merges. The Indiana Expert System has potential use in construction work zones. More
Use of safety intrusion alarms in work zones (Practice)
After testing two models of the work zone intrusion alarm, Vermont DOT's research unit purchased a model that uses an infrared beam sent from a transmitter unit to a receiver unit that also houses the… More
Pro-active Warning System for the Crossroads at Construction sites Based on Computer Vision (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
To improve insufficient management by artificial management, especially for traffic accidents that occur at crossroads, this paper develops a pro-active warning system for crossroads at construction s…MoreNevada:Use of safety intrusion alarms in work zones (Practice)
Nevada DOT has used safety intrusion alarms in work zones. The type of safety intrusion alarm used is electrical. The system was effective at first, but construction vehicles began running through the… More
Indiana DOT Beefing up Work Zone Safety for 2021 Construction Season (Publication)
Resource Type: News and Other Non-research Articles
The Indiana Department of Transportation (DOT) oversees the investment of more than $2 billion in 1,300 road construction projects and preventative maintenance activities in 2021. To improve work zone…MoreWork Zone Up Ahead: Other States Call TTI for Work Zone Research (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The safety of traffic operations in work zones has been a priority nationwide. This article describes the Texas Transportation Institute (TTI)'s involvement in three recent work zone research projects…MoreLeveraging Technology to Improve Roadway and Work Zone Safety in Nevada (Publication)
Resource Type: News and Other Non-research Articles
In an effort to prevent collisions and reduce congestion brought by the population growth, the Regional Transportation Commission of Southern Nevada (RTC)’s Traffic Management Center has actively te…MoreTraffic management techniques (beyond the MUTCD) used to reduce accidents in work zones (Practice)
Nevada uses the following: speed reductions prior to and through work zones, intrusion alarm systems, fluorescent orange sheeting for all construction signs for improved visibility, and night work dur… More
Evaluating the Effects of Connected Vehicle Weather and Work Zone Warnings on Truck Drivers’ Workload and Distraction Using Eye Glance Behavior (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study acts in support of the Wyoming Department of Transport (WYDOT) connected vehicle pilot efforts in the deployment of effective, safe, and user-centered connected vehicle (CV) applications an…MoreNew Technology Could Reduce Roadway and Work Zone Crashes (Publication)
Resource Type: News and Other Non-research Articles
About 800 people are killed in roadway work zones every year and at least 100 of them are workers. New and better technology from car manufacturers is here to help. As of May 2018, all new cars sold i…MoreAlabama DOT Deploys Queue Detection System in Tuscaloosa Work Zone (Publication)
Resource Type: News and Other Non-research Articles
After the widening of I-20/I-59 in Tuscaloosa, Alabama, began, traffic conditions worsened with long queues, secondary crashes, and extreme delayed travel times. To help mitigate the issues, Alabama D…MoreUse of safety intrusion alarms in work zones (Practice)
New York DOT compared three models of intrusion alarm during a series of demonstrations and field evaluations across the state in the summer of 1994. Errant vehicles set off the intrusion alarms sever… More
Work Zone Intrusion: Technology to Reduce Injuries and Fatalities (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zone incident statistics indicate that there is room for improvement in safety for both workers and motorists. - Safety technologies such as work zone intrusion alert technologies are not widely …MoreInventory of Best Practices to Prevent Incursions into Work Zones – Literature Review (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The aim of this report was to review the literature to identify existing best practices used to prevent incursions into work zones and improve safety of road users and road workers. A systematic liter…MoreIowa DOT Using Warning Sirens to Protect Road Crews (Publication)
Resource Type: News and Other Non-research Articles
Iowa Department of Transportation (IDOT) crews are using a visible and audible warning system made by the agency to enhance driver awareness of road work. IDOT has not had any crashes for two and a …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…MoreSafety Effects of Work Zone Advisory Systems Under the Intelligent Connected Vehicle Environment: A Microsimulation Approach (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The maintenance is essential to keep good roadway conditions. Nevertheless, it is inevitable that crash risks increase in work zones. There have been many efforts to minimize crash risks in the work z…MoreUsing Worker’s Naturalistic Response to Determine and Analyze Work Zone Crashes in the Presence of Work Zone Intrusion Alert Systems (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zone Intrusion Alert Systems (WZIAS) are alert mechanisms that detect and alert workers of vehicles intruding into a work zone. These systems pre-dominantly employ two components-sensors placed n…MoreUse of Smart Work Zone Technology to Improve Work Space Access Point Safety (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Large trucks have been significantly over-represented in work zone crashes. About one-half of those crashes involved a passenger vehicle running into the back of a large truck. One way to reduce crash…MoreA Connected Work Zone Hazard Detection System for Highway Construction Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In order to reduce the risk of collisions for roadway construction workers, this research aims to develop an innovative holistic solution at roadway work zones. In this research, a connected hazard de…More