HPMS Section Movement

The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS section movement event polyline feature class identifies signalized and unsignalized intersection control features along roadway segments. These attributes describe signal type, timing characteristics, number of signals, stop control, and other at-grade traffic control devices that influence travel flow and operating conditions. The information is used by traffic engineers, planners, and modelers to assess corridor performance, determine capacity constraints, and support statewide transportation modeling and safety evaluation. Data are reviewed 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爱达荷州运输部（Idaho Transportation Department，ITD）的《道路与高速公路路网线性参考系统（Linear Referencing System，LRS）高速公路性能监测系统（Highway Performance Monitoring System，HPMS）路段移动事件折线要素类》，可识别道路路段沿线的信号控制与无信号控制交叉口管控设施。该数据集的属性涵盖信号类型、配时特征、信号机数量、停车管控规则，以及其他影响出行流与道路运行状况的平面交通管控设施。交通工程师、规划人员与交通建模人员可依托该信息评估走廊通行性能、识别通行能力瓶颈，并支撑全州范围的交通建模与交通安全评估工作。该数据会作为爱达荷州运输部向联邦公路管理局（Federal Highway Administration，FHWA）提交的HPMS报送材料的一部分，每年进行审核与更新。本图层由《道路与高速公路》系统导出，仅包含LRS中的有效记录，均为当前可用的“工作”数据。如需获取静态发布的官方数据，请参阅存储于以下网址的记录：https://www.fhwa.dot.gov/policyinformation/hpms.cfm。本内容项为HPMS权威要素图层的子图层。元数据。