Search the Noteworthy Practices database UDOT's Advanced Data Collection Methods Result in Better Quality of Roadway/Asset Data and Improved Internal Management of DataSummary from: Collection and Use of Roadway Asset Data In Utah Roadway Safety Data and Analysis Case Study FHWA-SA-14-078Publication Year: 2014BackgroundThe Utah Department of Transportation (UDOT) maintains 5,869 centerline miles1 of roadway and 310 miles of freeway ramps, which together comprise 15 percent of the total roadway centerline miles (41,508) open to the public in Utah. 19,056 of these miles consist of unpaved roads. The UDOT-maintained roads carry 67 percent of the vehicle miles traveled in the State.1 The scope of the case study includes data collected on the State system only. Each road was driven in both directions during data collection, resulting in approximately 12,000 total miles driven. The data collection effort performed by UDOT was a first-of-its-kind, surveying the entire state roadway network and obtaining a wide set of data elements. LiDAR (a term that combines “light” and “radar”) was used by the selected vendor to collect a variety of asset data. The LiDAR technology creates a three dimensional model of the assets scanned along the roadway, and is performed in a single pass at highway speeds. Key Accomplishments
UDOT surveyed the entire State roadway network and obtained a wide set of data elements. LiDAR (a term that combines “light” and “radar”) was used to collect the asset data, and was also used to create a three dimensional model of the assets scanned along the roadway. UPlan was created as an online program to share all of the data needed to plan and program a project. UPlan is a spatial database of locations, location attributes and assets, supported in GIS and used by UDOT, their contractors, and the public. ResultsThrough this data collection effort, UDOT has improve their budgeting due to the enhanced knowledge of quantity and quality of roadway assets. The ability to share access to the roadway information enables divisions to work more closely together. UDOT's Traffic and Safety Division has enhanced safety analysis through improved roadway attributes and crash data. Reference
ContactStan Burns Utah Department of Transportation Publication Year: 2014 |