The work reported here quantitatively addresses the measurement of conspicuity of highway features and Caltrans work zones -- from the perspective of driver detection. The method focused on acquiring … [Read more...] about Roadway and Work Crew Conspicuity
Visibility
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
Be Seen, Stay Safe: ANSI Sets the Standard for High-Visibility Clothing
Construction crews along roads and highways are sometimes exposed to the hazards of not being seen by motorists and others. This "low visibility" is dangerous and can be potentially fatal. Until … [Read more...] about Be Seen, Stay Safe: ANSI Sets the Standard for High-Visibility Clothing
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