National Truck Network in Kentucky

This feature layer represents the sections of Kentucky’s road network that are part of the National Truck Network (NTN), a system of approved state highways and interstates designated for commercial truck travel in the United States. The NTN was authorized by the Surface Transportation Assistance Act of 1982 to provide safe and efficient routes for large trucks involved in interstate commerce. The network allows conventional truck combinations, including tractors with one semitrailer up to 48 feet long or a 28-foot semitrailer with an additional 28-foot trailer, with a maximum width of 102 inches. The Kentucky portion of the NTN includes approximately 3,700 miles of designated roadways, identified by KYTC’s Division of Planning. Additional resources include an HIS-based Truck Weight Limits query tool, which helps determine weight classifications on State Primary Road System (SPRS) routes. Regulations regarding Overweight and Over-Dimensional Vehicles, as specified in 603 KAR 5:070, outline restricted areas where trucks are prohibited by state law or local ordinance. More information is available on KYTC’s Drive.ky.gov website. Data Download: https://ky.app.box.com/s/9qnkwj6ki1tfa8ket2sbrz1bv5fnzc4p本要素图层涵盖美国肯塔基州公路网中属于国家卡车运输网络（National Truck Network, NTN）的路段。该网络是美国境内经核准、专供商用卡车通行的州级公路及州际公路系统。 国家卡车运输网络由1982年《地面运输援助法案》授权设立，旨在为参与州际贸易的重型卡车提供安全高效的通行路线。 该网络允许的常规卡车组合包括：牵引车头搭配单节半挂车（最长可达48英尺），或牵引车头搭配一节28英尺半挂车再加一节28英尺挂车，车辆最大宽度为102英寸。 肯塔基州境内的国家卡车运输网络路段总长约3700英里，由肯塔基州运输部（Kentucky Transportation Cabinet, KYTC）规划司划定。 配套资源包括一款基于HIS的卡车重量限值查询工具，可用于查询州级主要公路系统（State Primary Road System, SPRS）路段的重量分级标准。 根据603 KAR 5:070中规定的超重及超限车辆管理条例，该条例明确了州法律或地方条例禁止卡车通行的限制区域。 更多相关信息可登录肯塔基州运输部官方网站Drive.ky.gov查询。 数据下载链接：https://ky.app.box.com/s/9qnkwj6ki1tfa8ket2sbrz1bv5fnzc4p