National Highway Freight Network (NHFN)

The National Highway Freight Network (NHFN) dataset was compiled on January 27, 2023 from 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). Congress established a new National Highway Freight Program (NHFP) in 23 U.S.C. 167 to improve the efficient movement of freight on the National Highway Freight Network (NHFN) and support several goals. The law required the FHWA Administrator to strategically direct Federal resources and policies toward improved performance of the network. The NHFP provides formula funding apportioned annually to States, for use on the NHFN. The definition of the NHFN is established under 23 U.S.C. 167(c) and consists of four separate highway network components: the PHFS; Critical Rural Freight Corridors (CRFCs); Critical Urban Freight Corridors (CUFCs); and those portions of the Interstate System that are not part of the PHFS. Primary Highway Freight System (PHFS): This is a network of highways identified as the most critical highway portions of the U.S. freight transportation system determined by measurable and objective national data. The network consists of 41,800 centerlines miles, including 38,014 centerline miles of Interstate and 3,785 centerline miles of non-Interstate roads. Other Interstate portions not on the PHFS: These highways consist of the remaining portion of Interstate roads not included in the PHFS. These routes provide important continuity and access to freight transportation facilities. These portions amount to an estimated 10,265 centerline miles of Interstate, nationwide, and will fluctuate with additions and deletions to the Interstate Highway System. Critical Rural Freight Corridors (CRFCs): These are public roads not in an urbanized area which provide access and connection to the PHFS and the Interstate with other important ports, public transportation facilities, or other intermodal freight facilities. Nationwide, there are 5,389 centerline miles designated as CRFCs as of January 27, 2023. CRFCs are not included in GIS data base. Critical Urban Freight Corridors (CUFCs): These are public roads in urbanized areas which provide access and connection to the PHFS and the Interstate with other ports, public transportation facilities, or other intermodal transportation facilities. Nationwide, there are 2,656 centerline miles designated as CUFC as of January 27, 2023. CUFCs are not included in GIS data base. Data was subset to the Thrive Study Region in late 2025. For more information, visit https://ops.fhwa.dot.gov/freight/infrastructure/nfn/index.htm本国家公路货运网络（National Highway Freight Network, NHFN）数据集于2023年1月27日由美国联邦公路管理局（Federal Highway Administration, FHWA）编制，隶属于美国运输部（U.S. Department of Transportation, USDOT）/美国运输统计局（Bureau of Transportation Statistics, BTS）国家运输地图集数据库（National Transportation Atlas Database, NTAD）。美国国会于《美国法典第23编》第167条（23 U.S.C. 167）中设立全新的国家公路货运计划（National Highway Freight Program, NHFP），旨在优化国家公路货运网络（NHFN）上的货运高效流通，并支撑多项政策目标。该法案要求联邦公路管理局局长统筹调配联邦资源与政策，以提升该网络的运行效能。国家公路货运计划将按公式核算并每年向各州拨付定额资金，用于国家公路货运网络（NHFN）相关建设。国家公路货运网络（NHFN）的定义见于《美国法典第23编》第167条(c)款，由四类独立的公路网络组成：主要公路货运系统（Primary Highway Freight System, PHFS）、重点乡村货运通道（Critical Rural Freight Corridors, CRFCs）、重点城市货运通道（Critical Urban Freight Corridors, CUFCs），以及未纳入主要公路货运系统的州际公路路段。主要公路货运系统（PHFS）：该网络由经可量化、客观的国家级数据筛选出的美国货运交通系统中最关键的公路路段组成，总长度达41800中心线英里，其中包含38014英里州际公路中心线里程与3785英里非州际公路中心线里程。未纳入主要公路货运系统的其余州际公路路段：此类公路为未被纳入主要公路货运系统的剩余州际公路路段，承担着重要的通行连续性保障功能，并可连接货运交通设施。据估算，全美此类路段的州际公路中心线里程总计达10265英里，其里程数将随州际公路系统的新增与删减而动态波动。重点乡村货运通道（CRFCs）：此类公共道路位于非城市化区域，用于连接主要公路货运系统（PHFS）与州际公路，并对接其他重要港口、公共交通设施或多式联运货运设施。截至2023年1月27日，全美共划定5389英里中心线里程的重点乡村货运通道，且该类通道未纳入地理信息系统（Geographic Information System, GIS）数据库。重点城市货运通道（CUFCs）：此类公共道路位于城市化区域，用于连接主要公路货运系统（PHFS）与州际公路，并对接其他港口、公共交通设施或多式联运交通设施。截至2023年1月27日，全美共划定2656英里中心线里程的重点城市货运通道，且该类通道未纳入地理信息系统（GIS）数据库。本数据集已于2025年末针对Thrive研究区域完成子集化筛选。如需获取更多信息，请访问：https://ops.fhwa.dot.gov/freight/infrastructure/nfn/index.htm