{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) HPMS year last improvement event polyline feature class that identifies the most recent year in which an improvement project, other than new construction or reconstruction, was completed on a roadway segment, as reported through the Highway Performance Monitoring System (HPMS). The data supports maintenance history tracking, asset management, and pavement performance modeling.", "description": "
The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS year last improvement event polyline feature class represents the calendar year when the latest roadway improvement, rehabilitation, or resurfacing activity was completed. Improvements include projects intended to extend pavement life, enhance structural capacity, or improve ride quality without full reconstruction. <\/SPAN><\/P> This dataset provides critical input for pavement deterioration modeling and lifecycle planning. It reflects the timing of the last substantive upgrade that improved the functional or structural performance of the roadway. Data are updated annually as part of ITD\u2019s Highway Performance Monitoring System (HPMS) submittal to the Federal Highway Administration (FHWA). <\/SPAN><\/P>