Lane Mile
Texas Department of Transportation
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A lane mile is a mile of roadway in a single driving lane. The total lane mileage of a highway is found by multiplying the centerline mileage of a road by the number of lanes it has. Lane mileage is the total amount of mileage covered by a road's lanes.

Centerline Miles illustration

Illustration: Centerline Miles

 

Centerline Miles photo

Source: The illustration above represents what the public will see on our highways as Centerline Miles.

 

TxDOT Visual Dictionary

 

 

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