Warning beacons are critical for the safety of transportation, construction, and utility workers. These devices need to produce sufficient luminous intensity to be visible without creating glare to … [Read more...] about Impacts of Fog Characteristics, Forward Illumination, and Warning Beacon Intensity Distribution on Roadway Hazard Visibility
Safety Factors
Assessment of Drivers’ Visual Perception of Information Displayed in LED Traffic Signs at Road Construction Sites
This study investigated drivers' visual perception of information displayed in LED traffic signs under different levels of environmental luminance. Concerning the information displayed, the … [Read more...] about Assessment of Drivers’ Visual Perception of Information Displayed in LED Traffic Signs at Road Construction Sites
Effect of Work Zone Lighting on Drivers’ Visual Performance and Perceptions of Glare
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 … [Read more...] about Effect of Work Zone Lighting on Drivers’ Visual Performance and Perceptions of Glare
Toward Modeling the Effect of Vertical Illuminance on Perceived Glare in Work Zones
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 … [Read more...] about Toward Modeling the Effect of Vertical Illuminance on Perceived Glare in Work Zones
MDOT to Pay More for Brighter Orange Barrels
Despite concerns among suppliers of orange construction barrels, the Michigan Department of Transportation has decided to join about 20 other states in switching to the new and more costly reflective … [Read more...] about MDOT to Pay More for Brighter Orange Barrels
Analysing the Influence of Visible Roadwork Activity on Drivers’ Speed Choice at Work Zones Using a Video-Based Experiment
The present study used a video-based experimental design to investigate the influence of visible roadwork activity on speed preferences at work zones. Four videos from real work zones in Norway were … [Read more...] about Analysing the Influence of Visible Roadwork Activity on Drivers’ Speed Choice at Work Zones Using a Video-Based Experiment