NHS Connectors

National Highway System (NHS) connectors are roads, which may be either state or locally owned, which connect intermodal facilities to major highways on the National Highway System. The NHS Connectors in this data layer are officially designated NHS freight connectors that serve any of three types of facilities: intermodal rail facility, port, and/or airport. These routes were digitized based on DVRPC's street centerline data set to correspond with the officially designated NHS Connector routes.国家公路系统（National Highway System，简称NHS）连接器指可由州级或地方所有的道路，用于将多式联运设施连接至国家公路系统内的主要公路。本数据图层中的NHS连接器均为官方认定的NHS货运连接器，可服务三类设施中的任意一类：多式联运铁路设施、港口或机场。本数据集收录的道路路线基于DVRPC的道路中心线数据集完成数字化处理，以匹配官方认定的NHS连接器路线。