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
Glare
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
Effects of Mounting Height, Offset Distance, and Number of Light Towers on Drivers’ Visual Performance and Discomfort Glare in Work Zones
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 Effects of Mounting Height, Offset Distance, and Number of Light Towers on Drivers’ Visual Performance and Discomfort Glare in Work Zones
Examination of the Current Practice of Lighting in Virginia: Nighttime Work Zones and Improving Safety Through the Development of Nighttime Lighting Specifications
This project evaluated current nighttime work zone lighting practices for limited-access highways and primary routes in Virginia through (1) an on-site evaluation of lighting levels in work zones; (2) … [Read more...] about Examination of the Current Practice of Lighting in Virginia: Nighttime Work Zones and Improving Safety Through the Development of Nighttime Lighting Specifications