Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
This document summarizes available methods for transportation agencies and road contractors to design and operate work zones to reduce the risk of large truck crashes. Large trucks include vehicles co…MoreRear End Crashes
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Guidelines on Use of Exposure Control Measures (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
Guidelines on Use of Exposure Control Measures summarizes the various types of exposure control measures and discusses how each can improve the safety of workers and motorists in work zones. The docum…MoreTreating Potential “Back-of-Queue” Safety Hazards (module) (Training)
The purpose of this document is to highlight strategies that can help reduce the work zone congestion that increases back-of-queue crash risk. Studies have shown that rear-end crashes in the advance w… More
Treating Potential Back-of-Queue Safety Hazards (Publication)
Resource Type: Brochures and Fact Sheets
This fact sheet is designed to highlight common pitfalls in estimating potential impacts that can result from implementing a traffic control plan as well as strategies that can help reduce work zone c…MoreSafe Trucking Through Work Zones (Publication)
Resource Type: Brochures and Fact Sheets
This brochure offers safety tips for trucking through work zones. Statistics and the most commonly occurred types and locations of large truck crashes in work zones are also provided.MoreSWZ: 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
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…MoreSmart 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…MoreSurrogate Safety Assessment of Work Zone Rear-End Collisions in a Connected Vehicle Environment: Agent-Based Modeling Framework (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper presents an agent-based modeling and simulation (ABMS) framework to evaluate the safety performance impacts of connected vehicle (CV) technologies in a work zone setting. This research is p…MoreAnalysis of Expected Crash Reduction Benefits and Costs of Truck-Mounted Attenuator Use in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A truck-mounted attenuator (TMA) is a device that attaches to the back of a work truck to help protect work crews and the traveling public from the severe consequences of rear-end crashes between moto…MoreAnalysis of Injury Severity of Rear-End Crashes in Work Zones: A Random Parameters Approach With Heterogeneity in Means and Variances (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Rear-end crash is the predominant crash type in work zones. This study employs a random parameters logit approach with heterogeneity in means and variances to investigate factors affecting the injury …MoreMicro-Level Analysis on Traffic Flow Parameters at Work-Zone Road Section Using Vehicular Trajectory Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The research work is carried out to examine microscopic and macroscopic traffic parameters at work zone on high speed urban roads. Due to construction of elevated metro rail project over the study sec…MoreDriving Simulator Evaluation of Driver Performance During Hands-Free Cell Phone Operation in a Work Zone: Driving Without a Clue. (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Crashes continue to be a problem in work zones. Analyses have indicated that rear-end and sideswipe crashes are the most frequent. Investigators have hypothesized that distractions are often the cause…MoreIn-Depth Analysis of Drivers’ Merging Behavior and Rear-End Crash Risks in Work Zone Merging Areas (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study investigates the drivers’ merging behavior and the rear-end crash risk in work zone merging areas during the entire merging implementation period from the time of starting a merging maneu…MoreAssessing the Impacts of Connected-Vehicle Technology on Work Zone Rear-End Collisions: Agent-Based Modeling Approach (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The objective of this paper is to assess the impacts of connected vehicle technology on work zone rear-end collisions through an agent-based modeling approach. This research is primarily motivated by …MoreFatality Assessment and Control Evaluation (FACE) Report for Oklahoma: Hispanic Laborer Died after Being Struck by a Vehicle in a Roadway Work Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
A 23-year-old Hispanic utility contracting company worker died on December 30, 2003 from head injuries he received after being struck by a vehicle in a roadway work zone. He and a co-worker were clean…MoreAccident Characteristics Before, During, and After Safety Upgrading Projects on Ohio’s Rural Interstate System (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In 1973, minor safety upgrading projects were conducted at 21 locations on the rural Interstate system of Ohio, involving 618 km (384 miles) of freeways. In 1972, the accident rate per million vehicle…MoreHighway Accident Report: Multivehicle Collision, Interstate 44 Eastbound, Gray Summit, Missouri, August 5, 2010 (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
On August 5, 2010, in Gray Summit, Missouri, traffic slowed in the approach to an active work zone on eastbound Interstate 44. A 2007 Volvo truck-tractor with no trailer was traveling in the right lan…MoreIntelligent Work Zone System and Connected Vehicle Technologies to Reduce Crashes in Roadway Construction Area (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Even though a lot of countermeasures have been implemented in construction area (or called work zone), there are still many crashes in work zone reported in the United States. Angle and rear-end crash…MoreFlagger Effects in Reducing the Likelihood of Rear-End Collisions for In-Platoon Vehicles in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Rear-end collisions are among the most dominant crash types in work zones. Three factors may increase the potential of rear-end collisions in work zones: following too closely, speeding, and faster tr…MoreWoman, 52, Rear Ends Log Truck in Work Zone on Oregon 140 (Publication)
Resource Type: News and Other Non-research Articles
A 52-year-old woman who was driving with her cruise control set to 55 mph rear-ended an empty log truck on Oregon 140. The woman did not see the flagger who was signaling her to stop and forced him to…MoreWork Zones Versus Nonwork Zones: Risk Factors Leading to Rear-End and Sideswipe Collisions (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Tens of thousands of vehicular collisions occur annually in work zones with nearly double the fatality risk as compared to all collisions (work zone and nonwork zone). Due to this increase in risk, th…MoreAnalysis of Work Zone Rear-End Crash Risk for Different Vehicle-Following Patterns (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This study evaluates rear-end crash risk associated with work zone operations for four different vehicle-following patterns: car—car, car—truck, truck—car and truck—truck. The deceleration rat…MoreEvaluation of Rear-End Crash Risk at Work Zone Using Work Zone Traffic Data (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper aims to evaluate the rear-end crash risk at work zone activity area and merging area, as well as analyze the impacts of contributing factors by using work zone traffic data. Here, the rear-…MoreSafety Effects of Portable End-of-Queue Warning System Deployments at Texas Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The reduction of upstream end-of-queue (EOQ) crashes at work zone lane closures has been a focus of the Texas Department of Transportation, Austin, for several years. An ongoing widening effort on…MoreSafe and Environment-Friendly Forward Collision Warning Messages in the Advance Warning Area of a Construction Zone (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Collisions in construction zones have always been a contributing factor in compromising safety on urban roadways. National Highway Traffic Safety Administration (NHTSA) and state transportation author…MoreInvestigating Factors Contributing to Injury Severity in Work Zone Rear-End Crashes (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Egypt's National Road Project is a large infrastructure project which presently aims to upgrade 2500 kilometers of road networks as well as construct 4000 kilometers of new roads to meet today's need.…MoreFatal Work Zone and Non-Work Zone Rear-End Collisions by Functional Classification
Many of the fatal crashes in work zones involve rear-end collisions. As shown above, rear-end collision involvement in fatal work zone crashes is consistently higher on rural roadways than urban… More
Queue Length Detector Reduces Risk of Rear-End Accidents in Work Zones (Publication)
Resource Type: News and Other Non-research Articles
Motorists and workers in the work zones on U.S. Route 22 in Pennsylvania will be safer thanks to the infrared intrusion alarm and the queue length detector, two work zone safety devices developed unde…MoreStudy Cites Rear-End Collisions as Number 1 Work-Site Danger for Drivers (Publication)
Resource Type: News and Other Non-research Articles
According to a study conducted by the Liberty Mutual Research Center for Safety and Health, rear-end collisions account for 41% of all vehicular accidents that occur at roadway construction sites. The…MoreDriver-Eye-Movement-Based Investigation for Improving Work-Zone Safety (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Crashes continue to be a problem in work zones. Analyses have indicated that rear-end and sideswipe crashes are the most frequent. Investigators have hypothesized that distractions are often the cause…MoreDesign and Operation of Work Zone Strategies to Improve Large Truck Safety (Publication)
Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.
This document summarizes available methods for transportation agencies and road contractors to design and operate work zones to reduce the risk of large truck crashes. Large trucks include vehicles co…More