TxDOT Roadway Inventory 2023

The 2023 Roadway Inventory is a statewide dataset of attribute data routed to TxDOT's roadway network linework using linear referencing. Roadways are dynamically segmented whenever a single attribute changes, resulting in a highly segmented network that can be queried and filtered for specific attribute values. Attributes such as functional system, traffic counts, surface type, speed limits and many more are contained within. This layer is published annually based on end-of-year data that is reported to the Federal Highway Administration. This layer is highly segmented and thus in a different format than most of our regularly published datasets, which are segmented based on a single attribute. The 2023 Roadway Inventory layer can also be found on txdot.gov and TxDOT’s Open Data Portal. This product is created annually by the Transportation Planning and Programming Division at TxDOT in the Data Analysis, Mapping and Reporting Branch for internal and public use. Last Revision: 08/27/2025 TxDOT Roadway Inventory Specifications 2023 AGO Overview TxDOT Roadway Inventory Specifications 2023 PDF link in AGO Update Frequency: As Needed Source: Geospatial Roadway Inventory Database (GRID) Security Level: Public Owned by TxDOT: True Related Links Data Dictionary PDF [Generated 2025/08/27]

2023年道路库存数据集是一套全州范围的属性数据集，通过线性参照（linear referencing）技术将属性数据关联至德克萨斯州运输部（TxDOT）的道路网络线要素图层。每当单个属性发生变化时，道路要素会被动态分段，由此形成高度细分的道路网络，可针对特定属性值进行查询与筛选。该数据集涵盖道路功能分类、交通量、路面类型、限速等诸多属性字段。
此图层基于上报至美国联邦公路管理局(Federal Highway Administration)的年末数据每年更新发布。由于该图层细分程度极高，其格式与本部门多数常规发布的数据集存在差异——常规数据集仅基于单一属性进行分段。
用户可在TxDOT官网（txdot.gov）及TxDOT开放数据门户获取2023年道路库存图层。本产品由TxDOT运输规划与项目分部下设数据分析、制图与报告分支部门每年编制，供内部及公众使用。
最后修订日期：2025年8月27日
TxDOT 2023年道路库存规范AGO概述
TxDOT 2023年道路库存规范PDF链接（AGO内）
更新频率：按需更新
数据来源：地理空间道路库存数据库(Geospatial Roadway Inventory Database, GRID)
安全级别：公开
权属归属：TxDOT（权属属实）
相关链接：数据字典PDF文件【生成于2025年8月27日】