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
Navigation Systems
Use of drone radar and automated flaggers in work zones
Illinois DOT has used drone radar in both urban and rural work zones, and it was perceived to be somewhat effective. One problem was that drivers soon realized that no police were present and they … [Read more...] about Use of drone radar and automated flaggers 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
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