Functional classification is the system used to organize streets and highways according to how they move vehicles across our transportation network. This designation is based on criteria established by the Federal Highway Administration, such as roadway volume, speed limit, etc. Functional classification is used in transportation planning, roadway design, and is one of the factors in determining if a roadway project is eligible to receive federal funds.

​

As the Metropolitan Planning Organization for the Wichita Area, WAMPO is responsible for developing and maintaining the functional classification system of roadways within its planning boundaries in coordination with local cities, counties, and the Kansas Department of Transportation.