These values represent the weighted average condition of high and low volume highways that are in good and fair condition, using the International Roughness Index (IRI), as the indicator.
These values represent the combined average Bridge Health Index (BHI) score, which is the health rating for bridge condition for bridges in the respective category.
These devices and signals are key infrastructure measurements to manage traffic, and provide a safe, and reliable movement of goods, services and people. The department tracks the health of these through ongoing preventative maintenance and performance monitoring.
This measure shows the percentage of ITS field devices communicating with the Traffic Operations Center (including CCTV, VMS, Traffic Signals, Ramp Meters, Traffic Monitoring Sensors).
These values represent the percent of UDOT traffic signals that are in good, average and poor condition.
Under the philosophy, "good roads cost less," UDOT manages more than 16,000 lane miles of pavement throughout the state. We take a proactive approach to preserve and rehabilitate these vital assets to avoid costly reconstruction treatments. Pavement is prioritized in two categories based on the volume of daily vehicle usage and the volume of freight:
> 1000 AADT
Centerline miles - 3,925, 67%
Lane miles - 80%
VMT - 98%
Surface areas - 81%
< 1000 AADT
Centerline miles - 1,955, 33%
Lane miles - 20%
VMT - 2%
Surface areas - 19%
The condition of bridges in our inventory is the envy of the country. We strategically invest our funding to proactively preserve, rehabilitate and reconstruct our structures. UDOT uses the Bridge Health Index (BHI) which measures and tracks the overall structural condition of the three categories of bridges in our system.
Ongoing monitoring of our traffic signals and Intelligent Transportation Systems ensures consistent reliability and extends the life-cycle of these devices. This proactive approach determines if devices are in good working condition or when they need to be replaced, upgraded, or decommissioned.