“Gross weight on any one axle” means the total load on all wheels whose centers are included within two parallel transverse vertical planes not more than 40 inches apart.

“Quad axles” means four or more consecutive axles, arranged in tandem and articulated from a common attachment to the vehicle or individually attached to the vehicle, with such axles spaced more than 120 inches apart and not more than 150 inches apart.

“Tandem axles” means two or more consecutive axles, arranged in tandem and articulated from a common attachment to the vehicle or individually attached to the vehicle, with such axles spaced not less than 40 inches apart and not more than 96 inches apart.

“Triple axles” means three or more consecutive axles, arranged in tandem and articulated from a common attachment to the vehicle or individually attached to the vehicle, with such axles spaced more than 96 inches apart and not more than 120 inches apart. (Code 1981 § 43-674. Code 1995 § 142-736.)