Federal_Aid_Highway_System_TDA

The FDOT GIS Federal-Aid Highway System feature class shows Federal aid funding eligibility of public roadways. It also designates roadways as on or off the National Highway System (NHS). If code 5 appears in this characteristic, then the roadway is on NHS, otherwise it is off NHS. NHS is assigned by Transportation Data & Analytics and approved by the FHWA. All roadways functionally classified as major collector and above and not NHS are Surface Transportation Program (STP). In general, STP projects may not be on local or rural minor collectors. To be eligible for federal STP funding, a project must be on a roadway functionally classified as an urban collector or rural major collector or above, or on a local road or rural minor collector if that roadway was on the Federal-aid Rural Secondary System (FARSS) as designated on January 1, 1991. Federal aid eligibility may include designation of the NHS. This information is required for all roadways functionally classified as local and above, and NHS roadways with any functional classification. This dataset is maintained by the Transportation Data & Analytics office (TDA). The source spatial data for this hosted feature layer was created on: 08/01/2026. For more details please review the FDOT RCI Handbook Download Data: Enter Guest as Username to download the source shapefile from here: https://ftp.fdot.gov/file/d/FTP/FDOT/co/planning/transtat/gis/shapefiles/fahwysys.zipFDOT GIS联邦援助公路系统要素类（FDOT GIS Federal-Aid Highway System feature class）用于展示公共道路的联邦资助资格情况，同时将道路划分为纳入国家公路系统（National Highway System, NHS）与不纳入国家公路系统两类。若该特征属性中出现代码5，则对应道路属于NHS，反之则不属于。NHS由交通数据与分析部门划定，并经联邦公路管理局（Federal Highway Administration, FHWA）批准。 所有功能等级为主要集散道路及以上且不属于NHS的道路，均属于地面运输项目（Surface Transportation Program, STP）范畴。一般而言，STP资助项目不得覆盖地方道路或乡村次要集散道路。若项目想要获得联邦STP资助，则其对应道路需满足以下任一条件：功能等级为城市集散道路、乡村主要集散道路及以上；或该道路为地方道路或乡村次要集散道路，且其在1991年1月1日时已被划定为联邦援助乡村次要系统（Federal-aid Rural Secondary System, FARSS）。 联邦资助资格可能包含NHS的划定认定。所有功能等级为地方道路及以上的道路，以及任何功能等级的NHS道路，均需包含该类信息。 本数据集由交通数据与分析办公室（Transportation Data & Analytics Office, TDA）维护。该托管要素图层的源空间数据创建于：2026年8月1日。 如需了解更多详情，请查阅FDOT RCI手册。下载数据：以Guest作为用户名，即可从以下链接下载源shapefile文件：https://ftp.fdot.gov/file/d/FTP/FDOT/co/planning/transtat/gis/shapefiles/fahwysys.zip