North American Roads

The North American Roads dataset was compiled on October 27, 2020 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). On March 31, 2025, the errant records with a value of 2 in the "NHS" field were corrected to have a value of 7 (Other NHS). This dataset contains geospatial information regarding major roadways in North America. The data set covers the 48 contiguous United States plus the District of Columbia, Alaska, Hawaii, Canada and Mexico. The nominal scale of the data set is 1:100,000. The data within the North American Roads layer is a compilation of data from Natural Resources Canada, USDOT’s Federal Highway Administration, and the Mexican Transportation Institute. North American Roads is a digital single-line representation of major roads and highways for Canada, the United States, and Mexico with consistent definitions by road class, jurisdiction, lane counts, speed limits and surface type. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529071北美道路数据集（North American Roads）于2020年10月27日由美国运输统计局（Bureau of Transportation Statistics, BTS）汇编完成，隶属于美国运输部（U.S. Department of Transportation, USDOT）/美国运输统计局（BTS）国家交通地图集数据库（National Transportation Atlas Database, NTAD）。2025年3月31日，该数据集中「国家公路系统（National Highway System, NHS）」字段取值为2的错误记录已被修正为7（其他国家公路系统（Other NHS））。本数据集涵盖北美主要道路的地理空间信息，覆盖范围包含美国本土48州、哥伦比亚特区、阿拉斯加州、夏威夷州，以及加拿大与墨西哥。该数据集的标称比例尺为1:100000。北美道路图层的数据整合了加拿大自然资源部、美国运输部联邦公路管理局及墨西哥交通研究院的相关数据。北美道路数据集以数字化单线形式呈现加拿大、美国及墨西哥的主要道路与高速公路，其道路等级、管辖主体、车道数量、限速标准及路面类型均采用统一定义标准。该数据集的数据字典及其他属性信息可通过https://doi.org/10.21949/1529071获取。