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

Instructing the Implementing Safe Work Zone Operations Strategies Training Course (Training)

This free one day course will provide safety managers, operations managers, engineers, directors, and other interested and qualified individuals responsible for instructing Implementing Safe Work Zone… More

Instructing the Implementing Safe Work Zone Operations Strategies Training Course

This is Day Two of a two-day course. See Day One course This free one day course will provide safety managers, operations managers, engineers, directors, and other interested and qualified in… More

Quick Reference Guide for Work Zone Crash Modification Factors (Publication)

Resource Type: Manuals, Policies, Guidelines, and Handbooks, etc.

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An Optimization Methodology to Improve Work Zone Safety Within a Limited Budget in a Roadway Network (Publication)

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

In the U.S., total 94,000 crashes (Fatal 710, Injury 36,290, and PDO 57,000) occurred in work zones in 2017. The economic cost to these crashes is estimated at nearly $17.5 billion. Data reveale…More

An Optimization Model to Determine an Appropriate Budget for Improving Work Zone Safety (Publication)

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

In order to keep up with demand, government agencies must maintain and rehabilitate roadways so the supply to the public is met. However, while maintaining and rehabilitating roadways, work zones are …More

Work Zone Crashes Climb During Pandemic, Even as Traffic Ebbs (Publication)

Resource Type: News and Other Non-research Articles

Work zone crashes and fatalities have increased in some states during the COVID-19 pandemic, despite the drop in traffic. Highway workers are at more risk than ever as distracted drivers speed through…More

Addressing Work Zone Speed and Safety Webinar (Training)

This 90-minute workshop discussed the effectiveness of various work zone countermeasures used to reduce speeds and address crashes in work zones. General countermeasures, such as dynamic speed feedb… More

Work Zone Intrusion Countermeasure Identification, Assessment, and Implementation Guidelines (Publication)

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

In this report, Texas Transportation Institute researchers documented the efforts undertaken to investigate and categorize the different types of work zone intrusion crashes that occur on California r…More

INDOT to Roll out New Work Zone Safety Measures Next Year (Publication)

Resource Type: News and Other Non-research Articles

Republican Jon Ford's bill on using cameras to catch speeders faced pushback in legislature. INDOT plans to roll out other new safety measures in work zones next year, which include additional police …More

Discussion of Active Safety Countermeasures of Motorway Work Zone (Publication)

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

A series of comparison analyses of work zone configurations, traffic organizations and work management among China and oversea countries are carried out. Taking into consideration of human, vehicles, …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

Countermeasures

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