{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) HPMS turn lanes event polyline feature class which identifies the presence, type, and configuration of turn lanes along Idaho\u2019s public roadway segments as reported through the Highway Performance Monitoring System (HPMS). The data supports roadway design, traffic operations, safety studies, and intersection capacity evaluations.", "description": "
The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS turn lanes event polyline feature class describes whether exclusive turn lanes are provided along a segment and the manner in which they are configured. These data help determine lane continuity, intersection control, and operational characteristics that influence capacity and performance. <\/SPAN><\/P> Turn lane data are collected through field inventories, design records, and roadway management databases and are reviewed annually as part of ITD\u2019s Highway Performance Monitoring System (HPMS) submittal to the Federal Highway Administration (FHWA). <\/SPAN><\/P>