Physical Phenomena

Effectiveness of Lighted Work Zone Apparel: Effects on Visibility

The goal of this study is to evaluate effectiveness of lighted work zone apparel under realistic conditions. More specifically, the goal is to compare the effectiveness of various kinds of lighted … [Read more...] about Effectiveness of Lighted Work Zone Apparel: Effects on Visibility

Workzone Lighting and Glare on Nighttime Construction and Maintenance Activities

Over the last two decades, an increasing number of highway construction and maintenance projects in the United States have been completed at night to avoid or alleviate traffic congestion delays. … [Read more...] about Workzone Lighting and Glare on Nighttime Construction and Maintenance Activities

Work Zone Lighting’s Effect on Driver Visibility

Portable light towers are a significant source of glare to motorists entering a work zone. Although existing research has evaluated the effect of light tower orientation on visibility and glare, the … [Read more...] about Work Zone Lighting’s Effect on Driver Visibility

Simulator and Field Study of Green Lights on Truck-Mounted Attenuators in Missouri During Mobile Operations

Mobile work zones for various types of moving operations (e.g., striping, pothole patching, sweeping) are an important component in highway maintenance activities which have particular safety issues. … [Read more...] about Simulator and Field Study of Green Lights on Truck-Mounted Attenuators in Missouri During Mobile Operations

Evaluation of Green Lights on TMAs

The use of green versus traditional amber lights on Truck Mounted Attenuators (TMAs) was investigated to see if their use could help to improve safety in mobile work zones. Four light color … [Read more...] about Evaluation of Green Lights on TMAs