Bracing for some $12 billion in construction projects over the next decade, the Indiana Department of Transportation is rolling out brighter, attention-grabbing apparel for its road workers. The … [Read more...] about Road Crews to Brighten up Their Wardrobe: Fluorescent Yellow-Green Shirts with Reflective Stripes Designed to Boost Safety in Construction Zones
Retroreflectivity
What is Retroreflectivity?
Signs and markings are effective at night because they have been designed to reflect light from a vehicle's headlamps back to the driver. The technical term for this characteristic is … [Read more...] about What is Retroreflectivity?
Factors Affecting Sign Retroreflectivity
This study was undertaken to better understand the factors that may affect road sign retroreflectivity, specifically age and physical orientation. A better understanding of these factors could provide … [Read more...] about Factors Affecting Sign Retroreflectivity
Brightness and Color of Fluorescent Yellow and Fluorescent Yellow Green Retroreflective Signs: Comparison of Laboratory and Field Measurements
There is a growing body of traffic engineering research indicating fluorescent-retroreflective signing can increase safer driver behavior on the road. However, missing from these studies are … [Read more...] about Brightness and Color of Fluorescent Yellow and Fluorescent Yellow Green Retroreflective Signs: Comparison of Laboratory and Field Measurements
Work Zone Safety Rule: Be Conspicuous!
Highway workers need to make themselves and their equipment as conspicuous as possible in order to reduce traffic congestion, and improve communication with motorists. … [Read more...] about Work Zone Safety Rule: Be Conspicuous!
Impacts of Maintaining Traffic Signs Within Minimum Retroreflectivity Guidelines
The primary objective of this study was to analyze the sign retroreflectivity data obtained from various state and local jurisdictions and estimate the percentage of signs that would not meet the … [Read more...] about Impacts of Maintaining Traffic Signs Within Minimum Retroreflectivity Guidelines