Flagger safety is an important issue in work zones due to the proximity of the flagger to traffic. Some strategies for improving flagger safety include slowing down approaching vehicles or removing … [Read more...] about Evaluation of Automated Flagger Assistance Devices: Interim Report
Measures of Effectiveness
Evaluation of Work Zone Split Traffic Symbol Sign
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 … [Read more...] about Evaluation of Work Zone Split Traffic Symbol Sign
Highway Construction Work-Zone Safety: Effectiveness of Traffic-Control Devices
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 … [Read more...] about Highway Construction Work-Zone Safety: Effectiveness of Traffic-Control Devices
Field Measurements on the Effect of Temporary Rumble Strips in Work Zone Flagging Operations
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 … [Read more...] about Field Measurements on the Effect of Temporary Rumble Strips in Work Zone Flagging Operations
Improved Business Driveway Channelizing Treatments in Work Zones
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 … [Read more...] about Improved Business Driveway Channelizing Treatments in Work Zones
Improved Business Driveway Delineation in Urban Work Zones
This report documents the efforts and results of a two-year research project aimed at improving driveway delineation in work zones. The first year of the project included a closed-course study to … [Read more...] about Improved Business Driveway Delineation in Urban Work Zones