Resource Type: Books, Reports, Papers, and Research Articles
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)…MoreLighting Systems
Effects of Mounting Height, Offset Distance, and Number of Light Towers on Drivers’ Visual Performance and Discomfort Glare in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
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 e…MoreDocumentation of Semi-Permanent High-Mast Lighting for Construction (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
This report documents the first-time use by New York State of semi-permanent, high-mast pole-mounted fixtures used to illuminate nighttime road work construction and maintenance. This illumination app…MoreShedding Danger: Today’s Light Towers Provide Technology to Make Jobsites Safer and More Productive (Publication)
Resource Type: News and Other Non-research Articles
The presence of light source is crucial to environments, applications and sites where nighttime work takes place. This article discusses how manufacturers have made great strides to introduce new tec…MoreEffect of Work Zone Lighting on Drivers’ Visual Performance and Perceptions of Glare (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Nighttime crashes at work zones are a major concern for construction workers and motorists. Although a majority of the state department of transportations (DOT) specifications of work zone lighting in…MoreImpact of Temporary Portable Work Zone and Personal Lighting on Vehicle Speeds in Nighttime Highway Preservation Projects (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Every year thousands of people are killed or injured in work zone crashes in the US due to excessive speed, distraction, inattentiveness, or low visibility. Many highway construction, maintenance, and…MoreInvestigation of Effectiveness of Radar Speed Signs and Additional Lighting for Speed Control in Highway Construction and Maintenance Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Safely controlling and reducing vehicle speeds through work zones decreases the safety risk associated with highway construction and maintenance work. Work zone speed control has been the subject of…MoreEffect of Work Zone Lighting on Drivers’ Visual Performance and Perceptions of Glare (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Nighttime crashes at work zones are major concerns for construction workers and motorists. Although in a majority of the U.S. states, department of transportation specifications for work zone lighting…MoreGlare and Light Characteristics of Conventional and Balloon Lighting Systems (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
With the increasing needs to adopt nighttime construction strategies in order to avoid disruption of traffic flow, state agencies are currently experimenting with a new class of light towers known as …MoreToward Modeling the Effect of Vertical Illuminance on Perceived Glare in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
In the United States, in most of the states, glare from the portable light towers in the work zones is evaluated subjectively. Subjective evaluation of glare usually has the inherent bias of the perso…MoreUse of Additional Lighting for Traffic Control and Speed Reduction in Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Performing roadway construction work at night exposes workers to hazards that are not present or as great during the daytime. Working at night requires illuminating the area where work is taking place…MoreOptimizing Work Zone Lighting (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Work zones are inherently complex and confusing visual environments, where the usual patterns of traffic flow are perturbed, and where lights used by workers for task visibility can create glare not o…MoreSafer Cone Collection with X-Cone Among the Latest Safety Innovations (Publication)
Resource Type: News and Other Non-research Articles
A cone collection system to further isolate workers from traffic and improved worksite lighting are among the latest safety and demarcation products. This article discusses the features and operati…MoreSolid-State Roadway Lighting Design Guide: Volume 1: Guidance (Publication)
Resource Type: Books, Reports, Papers, and Research Articles, Manuals, Policies, Guidelines, and Handbooks, etc.
The lighting industry has changed dramatically over the past decade. The optical system design of legacy high-intensity discharge (HID) luminaires was restricted to the lamp, refractor, and reflector …MoreIllumination and Visibility of Workers in Nighttime Highway Work Zones (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
Much of the construction work that occurs on high-speed roadways takes place at night to minimize impacts on drivers. Performing work at night exposes workers to hazards that are not present during th…MoreWork Zone Lighting’s Effect on Driver Visibility (Publication)
Resource Type: Books, Reports, Papers, and Research Articles
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 e…More