Resource Type: Books, Reports, Papers, and Research Articles
At highway construction and maintenance work zones and other locations where roadway alignment, road surface, and traffic flow conditions have contributed to high crash rates, crash risk may be reduce…MoreMeasures of effectiveness
Temporal Speed Reduction Effects of Drone Radar in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Three experiments were conducted to evaluate the effectiveness of using drone (passive or unmanned) radar guns on vehicle speeds in work zones. Experiment 1 was an exploratory study to determine the i…MoreSafety 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…MoreEvaluation of the Effectiveness of Dynamic Speed Feed Back Signs in Work Zones on High-Speed Kansas Roadways (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are essential to keeping our roadways preserved or reconstructed so that they are safe and efficient. Work zones tend to increase safety risks due to the normal driving’s changing conditi…MoreA Comparative Study of Machine Learning Classification for Color-Based Safety Vest Detection on Construction-Site Images (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Detecting the safety vests is an important foundation for various applications in safety management and productivity measurement. The fluorescent yellow-green color and fluorescent orange-red color of…MoreHighway Construction Work-Zone Safety: Effectiveness of Traffic-Control Devices (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Pavement preservation is a proactive approach to maintaining existing highways. Freeway-preservation projects typically require construction workers to conduct their work in close proximity to ongoing…MoreReview of Behavioural Studies, Accident Studies and Research Methods (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The present Deliverable 2 reports on the work carried out for Workpackage 2 of the ARROWS Project, titled Review of Behavioural Studies, Accident Studies and Research Methods. The main objectives of W…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…MoreImpact of Work Zone Signage on Driver Speeding Behavior: A Driving Simulator Study (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Speeding in a work zone needs to be tackled effectively to enhance work zone safety. This study evaluates the influence of three different work zone signs – speed photo enforced signs, dynamic speed…MoreEffectiveness of VSL Signs in Reducing Crash Rates on Roadway Construction Work Zones in Alaska (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
As a driver's speed increases, so do the probability of an incident and likelihood of injury. The presence of equipment, personnel, and a changing landscape in construction zones create greater potent…MoreEffects of Flashing Blue Lights Mounted on Paving Equipment on Vehicle Speed Behavior in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Vehicle speed in work zones is a significant concern to state transportation agencies and their construction partners. Prior research indicates that law enforcement vehicles within a work zone with ac…MoreField Measurements on the Effect of Temporary Rumble Strips in Work Zone Flagging Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Limited-scale field measurements were collected to quantify the impact of two temporary rumble strip (TRS) layouts at two different two-lane roadway construction projects in Iowa. The field work was n…MoreImproved Business Driveway Channelizing Treatments in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This paper documents the efforts and results of a human factors study of alternative business driveway channelizing treatments in work zones. The purpose of the research was to determine the effective…MoreAnalysis of Speed Profiles and Evaluation of Dynamic Signs in Kansas Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are essential for maintaining and improving roadways in the United States. Although reduced speed limits are used throughout work zones to increase worker and driver safety, motorists often…MoreEvaluating the Effects of Queue Warning Systems on Freeway Work Zones Using Traffic Simulation Software (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are a key component of the rehabilitation efforts that travelers on the U.S. national highway system interact with increasingly every day. Roadway construction, rehabilitation, and maintena…MoreEvaluation of Rumbler, Preformed Rumble Strip (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The Rumbler is a temporary rumble strip consisting of several plastic bumps that are six inches wide, four (to six) feet long, and between 0.15 and 0.25 inches high. They are affixed to the pavement w…MoreEvaluation of Truck-Mounted Automated Flagger Assistance Devices in Missouri: Case Study (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
To improve work zone safety by replacing human flaggers, a new Automated Flagger Assistance Device (AFAD) developed by the Missouri Department of Transportation (MoDOT) was investigated through field …MoreA Smart Highway Work Zone Merge System Enabled by Connected Vehicles (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Typical traffic control and operations at work zones usually are not very effective in mitigating the work zone bottleneck. A major reason is that the common early merge behaviors limits utilizing the…MoreEvaluating the Effectiveness of Toolbox Talks on Safety Awareness Among Highway Maintenance Crews (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway maintenance crews conduct various work operations, such as roadway repairs, bridges maintenance, landscaping, snow removal, etc. The proximity to speeding traffic, the extreme work environment…MoreImproved Road Safety at Work Zones Using Advanced Traveler Information Systems (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are road sections where road construction or maintenance activities take place. These work zones usually have different alignment and furniture than the original road and thus temporary low…MoreEffectiveness of Stationary Police Vehicles with Blue Lights in Freeway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zone safety affects both drivers and construction workers. Two main safety measures for reducing work zone crashes and their severity have been to reduce the vehicle speeds in work zones and to i…MoreOptimal Variable Speed Limit Control System for Freeway Work Zone Operations (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Improving operational safety and efficiency of variable speed limit (VSL) systems are the two core control objectives at work zone areas. In response to such need, this study presents a proactive …MoreEffectiveness Evaluation of Section Speed Control in Czech Motorway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
The goal of section speed control is to increase speed limit compliance in the monitored road sections, decrease speed variance and improve traffic safety. General experience with section speed contro…MoreSpeeding in Highway Work Zone: An Evaluation of Methods of Speed Control (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Highway workers frequently work in close proximity of live traffic in highway work zones, traffic accidents therefore have devastating effects on worker safety. In order to reduce the potential for su…MoreInvestigation of Flashing and Intensity Characteristics for Vehicle-Mounted Warning Beacons (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Reducing the potential for crashes involving front line service workers and passing vehicles is important for increasing worker safety in work zones and similar locations. Flashing yellow warning beac…MoreEvaluation of Work Zone Split Traffic Symbol Sign (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Effective signage that is easy to understand facilitates safe driving through a work zone. While the guidance for work zone signage in the Manual on Uniform Traffic Control Devices (MUTCD) is suitable…More