In recent years, fluorescent orange signs have become a viable option for increasing the visibility of traffic control devices in temporary traffic control zones due to the fact that the fluorescent … [Read more...] about Evaluation of Fluorescent Orange Signs
Safety
Guidelines for the Effective Use and Procurement of Advanced Warning Arrow Panels
This digest summarizes the results of NCHRP Project 5-14, "Advanced Warning Arrow Panel Visibility." The project evaluated the factors affecting the detection and recognition of arrow panels and … [Read more...] about Guidelines for the Effective Use and Procurement of Advanced Warning Arrow Panels
A Computational Vision Model-based Method to Address Work Zone Conspicuity
A computational means to assess the conspicuity of highway features was developed, verified, then applied to a sample construction work zone scene. This work was conceived as a balance between … [Read more...] about A Computational Vision Model-based Method to Address Work Zone Conspicuity
Synthesis of Best Practice for Increasing Protection and Visibility of Highway Maintenance Vehicles
The purpose of this research project is to study the current practices in enhancing visibility and protection of highway maintenance vehicles involved in mocing operations such as snow removal and … [Read more...] about Synthesis of Best Practice for Increasing Protection and Visibility of Highway Maintenance Vehicles
How Retroreflectivity Makes Our Roads Safer
Signs that seem to glow in the dark can help motorists navigate the roadway safely at night. They are made with retroreflective sheeting materials that return light from headlights back toward the … [Read more...] about How Retroreflectivity Makes Our Roads Safer
Evaluation of the Paddle Pal, a Device for Increasing the Visibility of Flagger Paddles
The Paddle Pal is a product of Safe-T-Proof. The product consists of a black plastic case and four arrays of three flashing LED's, two red arrays on one side and two amber arrays on the other side. … [Read more...] about Evaluation of the Paddle Pal, a Device for Increasing the Visibility of Flagger Paddles