Standard Lane Width

Standard Lane Widths

Standard Lane Width

It is important to make sure that the width of the roadway is large enough to accommodate most types of design vehicles. A width of 12 feet for through lanes is desirable on both rural and urban roadways, although the use of 9 foot to 11 foot wide lanes is not uncommon on low-volume roads (i.e., less than 400 AADT) in rural and residential areas. In addition, auxiliary lane widths should not be any less than 10 feet.

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