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

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

Analyzing Highway Work Zone Crashes and Traffic Control Effectiveness: Utilizing Effective Safety Countermeasures to Reduce Vehicle Crash Risks (Publication)

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

Highway work zones create an inevitable disruption to regular traffic flows and have resulted in traffic safety problems. Systematically investigating work zone vehicle crashes is a critical step towa…More

Examining Driver Behavior in Response to Work Zone Interventions: A Driving Simulator Study (Publication)

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

Construction zones pose a significant threat to both workers and drivers causing numerous injuries and deaths each year. Innovations in work zone safety could reduce these numbers. However, implementi…More

Evaluation of Technology-Enhanced Flagger Devices: Focus Group and Survey Studies in Kansas (Publication)

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

instiFlagger-controlled work zones, by their very nature tend to utilize fewer traffic control measures than other work zones. Often these work zones are in place for only a short duration of time, so…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

Use of Innovative Traffic Control Devices to Improve Safety at Short-Term Rural Work Zones (Publication)

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

This is the summary report for Project 0-1879: Investigation and Evaluation of Newly Developed and Innovative Traffic Control Devices for Application at Construction Work Zones to Alert Drivers and/or…More

Building Safer Highway Work Zones: Measures to Prevent Worker Injuries from Vehicles and Equipment (Publication)

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

To better understand worker injury risks, NIOSH reviewed the current literature on highway safety, analyzed data on worker fatalities in the highway and street construction industry, and held a worksh…More

A Report on Questionnaire Survey on Highway Work Zone Safety Audits: Appendix B

Full Report APPENDIX B: Graphic Presentations of Survey Results Distribution of Survey Respondents 1. Leading causes of highway work zone safety problems 2. Effective measures for im… 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

Indiana Department of Transportation Policies, Processes & Procedures on Work Zone Safety & Mobility (Publication)

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

In this document, Indiana Department of Transportation outlines policies and procedures that apply to work zones and incident management. Those policies and procedures also apply to local, federal-aid…More

Work 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 project…More

Development of Work Zone Lighting Standards for Nighttime Highway Work (Publication)

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

The results of a study to develop illumination guidelines for nighttime highway work are presented. Nighttime highway construction activities were identified and the seeing-task visual requirements fo…More

Innovative Traffic Control Devices for Improving Safety at Rural Short-Term Maintenance Work Zones (Publication)

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

The Texas Department of Transportation (TxDOT) and the Federal Highway Administration (FHWA) sponsored a Texas Transportation Institute (TTI) research project to determine if innovative traffic contro…More

A Report on Questionnaire Survey on Highway Work Zone Safety Audits: Appendix A

Full Report APPENDIX A: FHWA Grant DTFH61-06-G-00005: Highway Work Zone Safety Audit Guidelines Development and Training Questionnaire Survey on Highway Work Zone Safety Audits PURPOSE OF THIS QUE… More

Evaluation of Supplementary Traffic Control Measures for Freeway Work-zone Approaches (Publication)

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

Controlling traffic in work-zones to improve safety continues to be a major concern for highway agencies. Three traffic control devices: white lane drop arrows, the CB wizard alert system, and orange …More

High Speeds Put Metro Detroit Road Workers in Danger (Publication)

Resource Type: News and Other Non-research Articles

Thousands of Metro Detroit motorists driving through construction zones are reaching speeds on average of more than 20 mph above posted limits, endangering workers and themselves. Several countermeasu…More

Safety Effects of Fluorescent Yellow Warning Signs at Hazardous Sites in Daylight (Publication)

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

Yellow warning signs are an important and abundant type of traffic control device. Improving warning signs could be a cost-effective countermeasure at hazardous locations. The use of fluorescent yello…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

A Report on Questionnaire Survey on Highway Work Zone Safety Audits

PDF Version Highway Work Zone Safety Grant: Highway Work Zone Safety Audit Guidelines Development and Training Award No: DTFH61-06-G-00005 Submitted To: Mr. Carl Rodriquez, HAAM-40F Federa… 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

I-35 Construction-Zone Fatalities Near Waco Spur TxDOT to Reconsider Safety Measures (Publication)

Resource Type: News and Other Non-research Articles

An increase in accidents including three construction zone related fatalities near Waco since September 18th has prompted the Texas Department of Transportation (TxDOT) to review its construction safe…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

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

Radio Frequency Identification-Based Drivers’ Smart Assistance System to Enhance Safety and Reduce Emissions in Work Zone (Publication)

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

A work zone is an area of roadway with highway construction, maintenance, or utility-work activities. According to the National Highway Traffic Safety Administration, many traffic accidents and fatali…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

Spatial and Temporal Analyses of Work Zone Crashes and Investigation of Relationships Between Work Zone Traffic Control Measures and Crash Characteristics (Publication)

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

The deterioration of highway infrastructure requires reconstruction, rehabilitation, resurfacing, widening, etc to better serve the users. In order to efficiently and safely manage the traffic for all…More

Countermeasures

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