This report details the findings of a study on the Utah Department of Transportation's (UDOT's) Advanced Traveler Information Systems (ATIS's). The purpose of the study was to determine the public's awareness and use of four main ATIS's, namely variable message signs (VMS), highway advisory radio (HAR)...

Congestion in Salt Lake City is showing an increasing trend and, as congestion reaches higher levels, benefits of the HOV lanes will also increase. It needs to be determined whether the Salt Lake Valley HOV lanes are performing effectively in terms of travel time benefits, safety and the ability to carry...