Before UAS, overhead sign inspections were a time consuming process. These inspections, which look for missing rivets and bolts after installation, could only cover two to three signs per day with…
The Utah Department of Transportation (UDOT) developed a smartphone app, The Citizen Reporter, that provides a conduit for the traveling public to report road and weather conditions in real time to…
This PVSL system used a dynamic variable speed limit (VSL) algorithm to raise and lower the regulatory speed limits. The PVSL system also provided a queue warning algorithm that operated independent…
FINDINGSIn interviews with UDOT operators, estimates of up to 1 or 2 minutes in time saved to get the incident entered and located were reported. This improvement was recognized as a two-fold time…
This PVSL system used a dynamic variable speed limit (VSL) algorithm to raise and lower regulatory speed limits. The PVSL system also provided a queue warning algorithm that operated independent of…
The Utah Department of Transportation (UDOT) was selected as a recipient of FHWA’s Accelerated Innovation Deployment (AID) Demonstration grant to fund the use of a portable variable speed limit (PVSL…