WSDOT - Freight Data Primary Highway Freight System (NHFN)
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The National Highway Freight Network (NHFN) consists of four components: 1) 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; 2) Other Interstate portions not on the PHFS: these highways consistof the remaining portion of Interstate roads not included in the PHFS; 3)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; 4) Critical Urban Freight Corridors (CUFCs):these are public roads in urbanized areas which provide access and connection to the PHFSand the Interstate with other ports, public transportation facilities, or other intermodal transportation facilities. FHWA designates the PHFS, while states and in certain cases, Metropolitan Planning Organizations (MPOs), are responsible for designating public roads for the CRFCs and CUFCs in accordance with U.S.C Title 23, Section 167. This GIS dataset provides an inventory of the PHFS and Non-PHFS Interstates, reflecting the 2022 redesignation by the FHWA. The original GIS shapefiles were acquired through FHWA’s National Highway Freight Network Tool in 2023: https://usdot.maps.arcgis.com/apps/webappviewer/index.html?id=c4c0fdef029a4093b169e493e1883988
国家公路货运网络（National Highway Freight Network，NHFN）包含四个组成部分：1） 主要公路货运系统（Primary Highway Freight System，PHFS）：该路网由通过可量化的客观国家数据认定的美国货运交通系统中最为关键的公路路段构成；2） 未纳入主要公路货运系统的州际公路路段：指未被归入PHFS的剩余州际公路路段；3） 关键乡村货运通道（Critical Rural Freight Corridors，CRFCs）：即位于非城市化区域的公共道路，用于连通PHFS与州际公路，并衔接其他重要港口、公共交通设施或多式联运货运设施；4） 关键城市货运通道（Critical Urban Freight Corridors，CUFCs）：即位于城市化区域的公共道路，用于连通PHFS与州际公路，并衔接其他港口、公共交通设施或其他多式联运交通设施。 美国联邦公路管理局（Federal Highway Administration，FHWA）负责指定PHFS，而各州以及特定情形下的大都市规划组织（Metropolitan Planning Organizations，MPOs）则需依照《美国法典》第23编第167条，负责指定CRFCs与CUFCs对应的公共道路。 本GIS数据集收录了PHFS与非PHFS州际公路的清单，完整反映了FHWA于2022年完成的重新指定工作。原始GIS形状文件（shapefiles）于2023年通过FHWA的国家公路货运网络工具获取，获取链接为：https://usdot.maps.arcgis.com/apps/webappviewer/index.html?id=c4c0fdef029a4093b169e493e1883988
