Interstates_TDA

The FDOT GIS Interstates feature class provides spatial information on Florida Interstate highways. The interstate and US route numbers are assigned by the Federal American Association of State Highway and Transportation Officials (AASHTO) usually following recommendations by the each state department. Both interstate and US routes are coded under the USROUTE characteristic. Interstate numbers are assigned with even numbers for west to east routes and odd numbers for routes going south to north, starting with the lowest number in the lowest part of the nation and progressing higher nationwide. US route numbers are assigned with odd numbers for north and south routes with the low number beginning in the east and progressing higher toward the west. This numbering practice is used across all states for all interstates and US routes for the public traveling purposes. This information is required for roadways functionally classified as principal, minor arterials that have US route designations, and all Active Exclusive roads that are associated with Interstate and the US route. This dataset is maintained by the Transportation Data & Analytics office (TDA). The source spatial data for this hosted feature layer was created on: 06/27/2026. 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/interstates.zip佛罗里达州交通部（FDOT）地理信息系统（GIS）州际公路要素类提供佛罗里达州州际公路的空间信息。州际公路及美国国道的编号由美国国家公路与运输官员协会（AASHTO）制定，通常参考各州交通部门的建议。州际公路与美国国道均通过USROUTE属性字段进行编码。州际公路编号采用偶数对应西向东走向路线、奇数对应南向北走向路线的规则，编号从美国本土最南端的最低数值开始，在全国范围内逐步递增。美国国道编号则采用奇数对应南北走向路线的规则，最低编号从美国东部起始，向西逐步递增。该编号规则适用于全美所有州的州际公路与美国国道，以满足公众出行需求。此类空间信息适用于功能分类为主干道、带有美国国道编号的次要干道，以及所有与州际公路和美国国道相关联的现役专属道路。本数据集由交通数据与分析办公室（TDA）负责维护。此托管要素图层的源空间数据创建于2026年6月27日。如需了解更多详情，请参阅佛罗里达州交通部（FDOT）RCI手册。下载数据：以Guest作为用户名，即可从此处下载源形状文件（shapefile）：https://ftp.fdot.gov/file/d/FTP/FDOT/co/planning/transtat/gis/shapefiles/interstates.zip