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.
Bridge Health Index (BHI): The BHI is used as a structural performance measure and is made up of elements (deck, parapets, joints, overlay, etc.) rolling up to three separate scores (i.e. deck, superstructure, and substructure) that are weighted to underscore the importance of each category in overall bridge health. The element level evaluation is in accordance with the AASHTO Manual for Bridge Element Inspection (MBEI). Bridge condition data is by deck area and based on the annual March submittal to FHWA submittal in March in accordance with the Federal NBIS.
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 Intelligent Transportation Systems field devices communicating with the Traffic Operations Center (including Closed-circuit Television Devises, Variable Message Signs, Traffic Signals, Ramp Meters, Traffic Monitoring Sensors).
These values represent the percent of UDOT traffic signals that are in good, average and poor condition.