The Federal Highway Administration (FHWA) has worked to develop minimum levels of retroreflectivity for traffic signs and pavement markings that would enhance mobility and increase safety for the … [Read more...] about Status of Rulemaking for Minimum Retroreflectivity Guidelines
Materials
Retroreflectivity: Making Sure Signs Measure up
This article discusses the definition of retroreflectivity and offers advice on maintaining retroreflective films. It then presents a list of guidelines that can be used when conducting a nighttime … [Read more...] about Retroreflectivity: Making Sure Signs Measure up
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
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?
Road Crews to Brighten up Their Wardrobe: Fluorescent Yellow-Green Shirts with Reflective Stripes Designed to Boost Safety in Construction Zones
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 – The Latest
The AASHTO Board of Directors recently recommended a change in Section 406 of the present law regarding establishment of minimum retroreflectivity values for signs and pavement markings. This would … [Read more...] about Retroreflectivity – The Latest