METHODOLOGY
The study utilized the existing Utah DOT datasets to identify freeway bottlenecks and identified selected locations that could benefit from the coordinated ramp metering. A…
METHODOLOGY
This summary focus on the 12 DI deployments. According to ITS America, DI is the data, communication systems, servers, routers, hardware, sensors, software applications, and…
METHODOLOGY
In this study, the researchers first performed a before-and-after study to measure the effect of VMS on Utah freeway diversion rates during incidents, focusing on the freeway I-15. After…
METHODOLOGY
Performance measures studied included Roadway Clearance Time (RCT) and Incident Clearance Time (ICT), as well as Response Time (RT). These performance measures were calculated for IMT…
METHODOLOGY
Two surveys were conducted during the project period to better understand the passenger experience and the opinions of the general public regarding automated shuttles. The first survey…
Methodology
Data were collected in 2018 via video recordings and site visits at 17 marked crosswalk locations which met Annual Average Daily Traffic (AADT), number of lanes, and posted speed limit…
METHODOLOGY
Researchers collected data on a biweekly basis during October 2018, October 2019, January 2019, and January 2020. Vehicle travel speeds and traffic flow data were collected from…
Consider detector data accuracy rate in selecting algorithms. Researchers determined that loop detectors were not entirely accurate in their reporting of volume and occupancy data. The volumes…
The Utah Autonomous Shuttle Pilot, a collaboration between the Utah Department of Transportation (UDOT) and the Utah Transit Authority (UTA) provided passenger service at eight locations across Utah…