Portable traffic signal systems are now being marketed by several manufacturers. These systems have the potential for replacing flaggers in many work zones that require alternating one-way traffic … [Read more...] about An Evaluation of Portable Traffic Signals at Work Zones
Portable Traffic Signals
Feasibility of Portable Traffic Signals to Replace Flaggers in Maintenance Operations
The purpose of the research project was to explore the use of portable traffic signal technology as a means for improving the efficiency of two-lane rural maintenance operations. The research findings … [Read more...] about Feasibility of Portable Traffic Signals to Replace Flaggers in Maintenance Operations
Traffic management techniques (beyond the MUTCD) used to reduce delay in work zones
In Texas, portable trailer-mounted closed circuit television (CCTV), portable changeable message signs (CMS), portable highway advisory radio (HAR), and portable traffic signals are used to reduce … [Read more...] about Traffic management techniques (beyond the MUTCD) used to reduce delay in work zones
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