HPMS Year Last Construction

The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS year last construction event polyline feature class represents the calendar year when the latest major roadway construction activity was completed on a segment. Construction activities include new construction, reconstruction, major rehabilitation, resurfacing, or other substantial structural improvements that alter the pavement or cross-section. This attribute provides critical input for pavement condition modeling, deterioration rate calculations, and performance-based investment analyses. Data are derived from construction records, pavement management systems, and as-built documentation. The dataset is 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）的道路与公路路网线性参考系统（Roads and Highways Road Network Linear Referencing System, LRS）HPMS年度最新施工事件折线要素类，用于记录各路段最新大型道路施工作业的完成日历年。此处所指施工作业涵盖新建工程、改建工程、大修工程、路面加铺，或其他会改变路面结构或道路横断面的重大结构性改造项目。该属性字段可为路面状况建模、劣化速率计算以及基于绩效的投资分析提供关键输入数据。本数据集源自施工记录、路面管理系统及竣工文件。作为爱达荷州交通运输部向美国联邦公路管理局（Federal Highway Administration, FHWA）提交的公路性能监测系统（Highway Performance Monitoring System, HPMS）申报材料的一部分，该数据集每年更新一次。本图层为从《道路与公路》系统导出的内容，仅包含线性参考系统（LRS）中的有效记录，即当前的“工作”记录。如需获取静态发布数据，请访问：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