At highway construction and maintenance work zones and other locations where roadway alignment, road surface, and traffic flow conditions have contributed to high crash rates, crash risk may be … [Read more...] about Effect of Radar Drone Operation on Speeds at High Crash Risk Locations
Navigation Systems
Devices and Technology to Improve Flagger/Worker Safety
The purpose of this study was to identify new work zone traffic control (WZTC) techniques and devices being used throughout the country to improve worker safety, and to evaluate their appropriateness … [Read more...] about Devices and Technology to Improve Flagger/Worker Safety
Use of drone radar in work zones
NYDOT has used drone radar in rural stationary work zones. It was effective in some locations, but generally has not been effective in reducing speeds. Drivers who travel the route routinely quickly … [Read more...] about Use of drone radar in work zones
Use of drone radar, safety intrusion alarms, and CB Wizard in work zones
16 units of drone radar were used statewide in Virginia. They were not perceived to be very effective as a speed control measure. A disadvantage was that project personnel had to keep them charged and … [Read more...] about Use of drone radar, safety intrusion alarms, and CB Wizard in work zones
A Methodology for Assessing the Impact of Radar Transmissions on a Work Zone
A new method of speed reduction in work zones is being investigated where an informational safety message is sent to drivers equipped with compatible receivers. The Safety Warning System, a currently … [Read more...] about A Methodology for Assessing the Impact of Radar Transmissions on a Work Zone
Use of drone radar and safety intrusion alarms in work zones
Caltrans has used radar speed trailers in work zones and has experimented with other drone-type speed advisory devices. The devices have been effective, especially on high-speed interstate freeways … [Read more...] about Use of drone radar and safety intrusion alarms in work zones