Transportation Data and Analytics Office
The Transportation Data and Analytics Office coordinates and maintains data on various highway system designations.
Federal Aid Systems, the National Highway System and Functional Classification are developed in a cooperative process
with local officials and FDOT according to Federal Highway Administration (FHWA) requirements, and approved by FHWA before becoming effective.
The Strategic Intermodal System (SIS) replaced the Florida Intrastate Highway System (FIHS) in 2003 and is designated by FDOT, with input from local governments, highway users, and other interested parties.
State Highway System (SHS)
National Highway System (NHS)
Handbooks and Procedures