NCHRP Project 17-10 was conducted for the main purpose of revamping the 1994 edition of the AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals … [Read more...] about Structural Supports for Highway Signs, Luminaires, and Traffic Signals
Traffic Signals
Maintenance Work Zone Safety Devices Development and Evaluation
This report presents the findings of tests and evaluations of several new work zone safety devices. The prototypes of the 25 devices were designed, developed, fabricated, tested, evaluated, and … [Read more...] about Maintenance Work Zone Safety Devices Development and Evaluation
Use of automated flaggers in work zones
Ohio DOT has used automated flaggers in rural maintenance zones and found them to be very effective in controlling traffic. The specific type of automated flagger is not approved by FHWA and is not in … [Read more...] about Use of automated flaggers in work zones
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, 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 and automated flaggers in work zones
Wisconsin has used drone radar primarily in rural work zones (stationary construction zones/maintenance zones/mobile operations), and it was perceived to be somewhat effective as a speed control … [Read more...] about Use of drone radar and automated flaggers in work zones