Speeding is known to be related to a significant portion of highway collisions. As part of the efforts to seek safety improvements of the California highway network, the California Department of … [Read more...] about Assessing Automated Speed Enforcement in California
Navigation Systems
GPS Problems in Construction Zones
In Washington, DC, GPS units have caused confusion, especially in construction zones. It could be due to the lag time between the road changes are made and the updates are released. Drivers are … [Read more...] about GPS Problems in Construction Zones
Synthesis of Traffic Calming Techniques in Work Zones
Nationwide, over 1,000 fatalities and 40,000 injuries occur annually in work zones, which include both construction zones and areas where maintenance is performed. The majority (85%) of work zone … [Read more...] about Synthesis of Traffic Calming Techniques in Work Zones
Use of drone radar, safety intrusion alarms, CB Wizard, and automated flaggers in work zones
TxDOT has used drone radar in both rural and urban work zones, mostly in mobile operations. It was perceived to be somewhat effective as a speed control measure. Problem: It targets only road users … [Read more...] about Use of drone radar, safety intrusion alarms, CB Wizard, and automated flaggers in work zones
Use of drone radar in work zones
Kansas has used drone radar in work zones. It was perceived to be very effective as a speed control measure. The drone radar has been used in urban stationary construction zones. KDOT does not have a … [Read more...] about Use of drone radar in work zones
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