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（feature layer）展示了肯塔基州公路网中纳入国家卡车运输网络（National Truck Network, NTN）的路段。国家卡车运输网络（NTN）是美国专为商业货运卡车通行划定的州际公路与州道系统，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大型货运卡车提供安全高效的通行路线。该网络允许的常规货运车辆编组包括：牵引车头搭配1台最长48英尺的半挂车，或1台28英尺半挂车再加挂1台28英尺挂车，车辆最大宽度不得超过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）规划司认定。配套资源还包含一款基于HIS的卡车限重查询工具，可用于查询州主要公路系统（State Primary Road System, SPRS）路段的重量分级标准。《超重与超限车辆管理条例》（详见603 KAR 5:070）明确了州法律或地方性条例禁止货运卡车通行的限制区域。更多相关信息可登录KYTC官方网站Drive.ky.gov查询。数据下载链接：https://ky.app.box.com/s/9qnkwj6ki1tfa8ket2sbrz1bv5fnzc4p