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TRAFFIC CALMING POLICY REVIEW
Roadway Classifications in Knoxville and Knox County
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Listed below are the characteristics of the seven types of roadways as defined by the Knoxville-Knox County Major Road Plan. Click here to see the Road Plan to find classification of individual streets. Streets not listed are by definition local streets.

Interstate - A divided highway, designated under the Interstate Highway System, designed for the safe, unimpeded movement of large volumes of through traffic with full access control and grade separation at intersections. Interchange spacing is typically greater than one mile.

Expressway - A divided highway designed for the safe, unimpeded movement of large volumes of through traffic. Intersection grade separation and full access control is desired, however may contain occasional at grade intersections. Intersection spacing is typically one mile or greater.

Major Arterial - A street that provides major movement within the area, provides intercommunity connections to the local street system and moves through traffic between activity centers. Access control is desirable. The spacing of Major Arterials is typically 1/8-1/4 mile in a downtown, 1/4-1/2 mile in urban areas, 1/2-1 mile in suburban areas and greater than 1 mile in rural areas. Intersection spacing is typically 1/2 mile or greater.

Minor Arterial - A street that augments the principal arterial system, carries trips of moderate length and moves through traffic between activity centers. Access control is desirable. The spacing of Minor Arterials is typically 1/8-1/4 mile in a downtown, 1/4- 1/2 mile in urban areas, 1/2-1 mile in suburban areas and greater than 1 mile in rural areas. Intersection spacing is typically 400 feet or greater.

Major Collector - A street that primarily provides for short distance traffic movement and primarily functions to collect and distribute traffic between local streets and high volume traffic generators and arterials. The spacing of Major Collectors is typically 1/2 mile and intersection spacing is typically 300 feet or greater.

Minor Collector - A street that primarily functions to collect and distribute traffic between local streets and arterials and provides direct access to abutting land. The spacing of Minor Collectors is typically 1/2 mile or less and intersection spacing is typically around 300 feet.

Local Street - A minor street that provides direct access to abutting land. Intersection spacing is 150 feet or greater
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