On a decennial basis (every 10 years), FDOT works with FHWA and local governments to update Urban Boundary and Functional Classification for the State of Florida. TDA’s Spatial Data and Analytics section acquires the U.S. Census population and urban boundary data and puts it into a usable format and projection. The data is then queried by District and sent to them. The Districts smooth their boundaries and have them finalized/approved by FWHA. TDA’s Spatial Data and Analytics section then compiles the boundaries into a statewide layer, resolving data conflicts such as overlaps and gaps between District boundaries.

The Districts work with local governments on any changes that need to occur to the urban boundaries and functional classification. Functional Classification is the assignment of roadways into systems according to the character of service they provide in relation to the total roadway network, e.g., principal arterials, minor collectors, etc. Urban Boundaries designate if a roadway segment is located in a rural or urban area and whether or not it is within a municipality.

Once approved by FHWA and published, these maps are used to determine the proper Functional Classification and Urban Boundary designations within the Department's Roadway Characteristics Inventory (RCI) system.

Resource Information

Spring 2022 is the estimated start date for State DOTs and MPOs to start smoothing these boundaries and to update functional classifications. FHWA is currently working on updating the 2013 Functional Classification guidebook and providing webinar instructions for the 2020 process. The Census is updating their issues FAQs.




User Feedback

If you should have any questions, comments or suggestions regarding the 2020 Census Roadway Data Updates, please contact the:

     FDOT Census User Group