Highway Performance Monitoring System (HPMS) 2024

The Highway Performance Monitoring System (HPMS) 2024 dataset was compiled December 23, 2025 by the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The data represents a snapshot of extent, usage, condition, and performance as of December 31, 2024. This file geodatabase download provides HPMS data for each state as an individual feature class. The HPMS has additional documentation available here: https://github.com/FHWA/HPMS/blob/2024-HPMS/README_2024_HPMS_All.md, which details known limitations and provides necessary disclaimers. The HPMS consists of the All Road Network of Linear Referenced Data (ARNOLD) geometry and the Section Data which is the attribution. ARNOLD and Sections are linked through linear referencing and are part of the HPMS data program. These data are analytical for supporting transportation programs, funding and policy decisions at a national level. Operational applications such as navigation and routing may use HPMS, understanding that it is not a “real-time” system, nor is it the primary focus of the data collection. The Highway Performance Monitoring System Field Manual contains a detailed description of each data element including coding instructions and attribute definitions. The Field Manual is available at: https://doi.org/10.21949/1519108. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/mrpb-7x82高速公路性能监测系统（Highway Performance Monitoring System, HPMS）2024数据集由美国联邦公路管理局（Federal Highway Administration, FHWA）于2025年12月23日编制，隶属于美国运输部（U.S. Department of Transportation, USDOT）/运输统计局（Bureau of Transportation Statistics, BTS）下属的国家交通地图集数据库（National Transportation Atlas Database, NTAD）。该数据集呈现了截至2024年12月31日的公路覆盖范围、使用情况、技术状况与运行性能快照。本次提供的文件地理数据库下载包，将各州的HPMS数据以独立要素类的形式分别存储。本数据集附带补充文档，详情可访问：https://github.com/FHWA/HPMS/blob/2024-HPMS/README_2024_HPMS_All.md，该文档详细说明了已知的数据集局限性，并提供了必要的免责声明。HPMS包含线性参考数据全道路网（All Road Network of Linear Referenced Data, ARNOLD）几何数据，以及作为属性数据的路段数据集。线性参考数据全道路网与路段数据集通过线性参考机制关联，二者均为HPMS数据项目的组成部分。本数据集为国家级交通规划、资金分配与政策制定提供分析支撑。导航、路径规划等运营类应用可参考本数据集，但需注意其并非实时系统，也并非本次数据采集的核心目标。《高速公路性能监测系统现场手册》详细说明了每个数据元素的编码规则与属性定义。该手册可通过以下链接获取：https://doi.org/10.21949/1519108。数据集字典或其他属性信息来源可通过以下链接获取：https://doi.org/10.21949/mrpb-7x82