Countermeasures

Treating 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

Integrated and Automated Systems for Safe Construction Sites (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Construction leads all industries in total worker fatal injuries in the U.S. Unsafe human behavior is considered a significant contributing factor to occupational incidents in construction. Technologi…More

Inventory 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…More

Evaluation of Speeding and Behaviour of Drivers in Roadwork Zones (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Due to the increased traffic flow, more and more roadwork zones are formed in highways. Accidents are a significant problem in all European countries in roadwork zones while noncompliance with speed l…More

Continued Crashes, Injuries and a Fatality in I-75 Construction Zone Prompts Action (Publication)

Resource Type: News and Other Non-research Articles

To address the growing number of crashes caused by speeding and distracted drivers, the Michigan Department of Transportation is implementing additional safety measures along the I-75 Rouge River cons…More

Looking Deep into the Eyes: Green Light on TMAs Could be Another Option for DOTs (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Truck-mounted attenuator (TMA) has been used as a countermeasure to help improve safety in mobile work zones. However, 139 TMA crashes occurred in Missouri from 2012 to 2017 with distracted driving be…More

ODOT 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…More

Estimating the Safety Effects of Work Zone Characteristics and Countermeasures: A Guidebook (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 869: Estimating the Safety Effects of Work Zone Characteristics and Countermeasures: A Guidebook provides practitioners who …More

Analysis of Work Zone Crash Characteristics and Countermeasures (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 240: Analysis of Work Zone Crash Characteristics and Countermeasures documents the research results of multiple analyses f…More

A Deep Learning Approach to Predict Severity Levels of Work Zone Crashes (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

The need for maintaining aging infrastructure and/or expanding road capacity leads to an increasing number of work zones presented on highways. Consequently, many crashes were observed in work zone ar…More

Intelligent 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…More

A Guide for Work Zone Crash Data Collection, Reporting, and Analysis (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

This guide describes the work zone crash data collection and reporting process, as well as the benefits and challenges in developing a unified system across the states. The quality and consistency of …More

Best 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…More

Setting Work Zone Speed Limits (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Increasing travel demands and an aging highway infrastructure drive the need for extensive construction, maintenance, and utility work zones. The introduction of work zone environments creates risks f…More

Development and Application of Work Zone Crash Modification Factors (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Crash modification factor (CMF) provides the expected change in crash frequency due to the implementation of a countermeasure or a change in a particular site condition. State and local transportation…More

Towards a European Guideline for Speed Management Measures in Work Zones (Publication)

Resource Type: Articles

Speed management in work zones is important to ensure that the driver safely can navigate the vehicle through the work zone routing. The ASAP project, Appropriate Speed saves All People, was designed …More

A Report on Questionnaire Survey on Highway Work Zone Safety Audits (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

This report documents the findings of a questionnaire survey conducted in mid-July 2007 to collect pertinent information to help the research team prepare and refine strategies and methodologies for d…More

Work Zone Intrusion Reporting: A Survey of State Practices (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

This report synthesizes practices of state DOTs for reporting and documenting vehicle intrusions into construction work zones.More

Work Zone Intrusion Prevention

Over the last decade, the number of occupationally-related work zone fatalities has not been reduced with an average of over 120 fatalities annually, the majority of which are the result of third-part… More

Work Zone Deaths Demand Wake-up Call (Publication)

Resource Type: Articles

The number of highway work zone fatalities is epidemic and averages more than 50 per month. Work zone deaths occur at a rate five times more than that of all law enforcement, fire, and rescue and EMS …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…More

2015 Work Zone Safety Conference at World of Asphalt

The National Work Zone Safety Conference was held March 16-17, 2015, in Baltimore, Maryland. The event, sponsored by ARTBA’s National Work Zone Safety Information Clearinghouse, was held in c… More

A Comparative Study to Evaluate Short-Term Work Zone Safety Control Measures’ Effectiveness Based on a Simplified Traffic Conflict Model (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

As traffic-related work zone crashes continue to increase across the nation, the safety of road users and workers has become a top priority for transportation agencies. This study compared three diffe…More

Work Zone Features Influencing Driver Speeds at Roadworks: Worker, Driver and Expert Views (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Roadworks are essential to a safe and efficient road network, yet somewhat paradoxically the necessary work is often associated with increased risk to motorists and workers, as well as with traffic fl…More

Common Hazards and Their Mitigating Measures in Work Zones: A Qualitative Study of Worker Perceptions (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Road construction and maintenance activities present challenges for ensuring the safety of workers and the traveling public alike. Hazards in work zones are typically studied using historical crash re…More

Making Informed Decisions on Selecting Promising Work Zone Safety Treatments (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Lack of detailed and accurate safety records on incidents in Australian work zones prevents a thorough understanding of the relevant risks and hazards. Consequently it is difficult to select appropria…More

Options for Automated Speed Enforcement Pilot Projects in Minnesota Work and School Zones (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Studies have shown that automated speed enforcement (ASE), when deployed in certain settings, increases roadway safety. Minnesota is one of the 36 states that do not use ASE. This is despite public op…More

Countermeasures

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