HPMS Pavement

The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS pavement event polyline feature class represents physical condition indicators collected along Idaho’s state and local federal-aid roadway network. It includes surface roughness, rut depth, cracking, and joint faulting measurements used to evaluate pavement ride quality and structural health. Condition data are collected through automated pavement survey vehicles and processed in accordance with FHWA HPMS data item definitions. These indicators help assess pavement performance trends, support State of Good Repair analysis, and inform resurfacing and reconstruction programming. The dataset is maintained and updated annually as part of ITD’s Highway Performance Monitoring System (HPMS) submittal to the Federal Highway Administration (FHWA). This layer is an export from Roads and Highways that represents only the active records within the LRS. These are current “working” records. For the static, published data, please see the records stored at: https://www.fhwa.dot.gov/policyinformation/hpms.cfm This content item is a sub-layer of the Highway Performance Monitoring System (HPMS) authoritative feature layer. Metadata爱达荷州交通运输部（Idaho Transportation Department, ITD）的《道路与公路》道路网络线性参考系统（Linear Referencing System, LRS）HPMS路面事件折线要素类，收录了沿爱达荷州州级及地方联邦援助道路网络采集的物理状况指标。该数据集包含路面平整度、车辙深度、裂缝及接缝错台等测量数据，用于评估路面行驶质量与结构健康状况。路面状况数据通过自动化路面检测车辆采集，并严格遵循美国联邦公路管理局（Federal Highway Administration, FHWA）的HPMS数据项定义进行处理。上述指标可用于评估路面性能变化趋势、支撑“良好维修状态”分析工作，并为路面重铺与重建项目规划提供决策依据。本数据集作为爱达荷州交通运输部向美国联邦公路管理局提交的公路性能监测系统（Highway Performance Monitoring System, HPMS）子项，每年进行维护与更新。此图层为《道路与公路》模块导出的内容，仅包含线性参考系统中的有效记录，即当前的“工作”记录。如需获取静态发布数据，请参阅存储于以下地址的记录：https://www.fhwa.dot.gov/policyinformation/hpms.cfm 本内容项为公路性能监测系统（HPMS）权威要素图层的子图层。元数据