Roadways Profile

Memphis MPO Functional Classification System Guidelines

interstate highway

Functional classification is the process by which streets and highways are grouped into classes, or systems, according to the role it plays in the overall system of the local, state and nation’s street and highway network. It determines how travel is “directed” within the roadway system by defining the part that each road or street plays in serving the flow of traffic through a highway network. It is a hierarchal system of classification that helps to ensure a comprehensive roadway system that provides logical connectivity and continuity across the entire network.

FHWA Functional Classification Guidelines

To review current functional classification maps for the Tennessee portion of the Memphis MPO, which includes Shelby County and part of Fayette County, please go here.

To see functional classification maps for the Mississippi portion of the MPO, which includes DeSoto County and part of Marshall County, please go here.


Traffic Counts

The Tennessee Department of Transportation (TDOT) and Mississippi Department of Transportation (MDOT) provide traffic counts of all major roads in the state. For Tennessee portion of the Memphis MPO, please go here and for the Mississippi, please go here.



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Mailing Address:

125 North Main St., Suite 450

Memphis, TN 38103

Tel: (901) 636.7190

Fax: (901) 636.7272






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