Definitions

As used in this Chapter, the following definitions will hold true:

(a)Axle: The common axis of rotation of one

(1)or more wheels, whether in one

(1)or more segments and regardless of the number of wheels carried thereon.

(b)Axle Group: An assemblage of two

(2)or more consecutive axles considered together in determining their combined load effect on a bridge or pavement structure.

(c)Axle Load: The total weight transmitted to the road COL4/6/2022 CH. 5 SIZE, WEIGHT AND LOAD LIMITATIONS AND RESTRICTION OF CERTAIN VEHICLES by a single axle.

(d)Connecting Mechanism: An arrangement of parts interconnecting two

(2)or more consecutive axles to the frame of a vehicle in such a manner as to equalize the load between the axles.

(e)Continuous Trip Permit: A special permit issued for oversize or overweight loads, valid for multiple days, multiple routes and/or between multiple points of destination, for the duration of a specific project, but not to exceed ninety

(90)days, unless deemed warranted otherwise by the DPW Director.

(f)Gross Combination Weight (GCW): The total weight of the power unit and the total weight of the towed unit and any load thereon.

(g)Gross Combination Weight Rating (GCWR): The value specified by the manufacturer as the loaded weight of a combination (articulated) motor vehicle. In the absence of a value specified by the manufacturer, GCWR will be determined by adding the GVWR of the power unit and the total weight of the towed unit and any load thereon.

(h)Gross Vehicle Weight (GVW): The total weight of the loaded vehicle. This includes the vehicle itself and the cargo that is loaded within that vehicle.

(i)Gross Vehicle Weight Rating (GVWR): The value specified by the manufacturer as the loaded weight of a single motor vehicle.

(j)Gross Weight: The weight of a vehicle and/or vehicle combination without load, plus the weight of any load thereon.

(k)Height: The total vertical dimension of any vehicle above the ground surface including any load and load holding device thereon.

(l)Highway: The entire width between the boundary lines of every publicly maintained surface, when any part thereof is open to the use of the public for purposes of COL4/6/2022 CH. 5 SIZE, WEIGHT AND LOAD LIMITATIONS AND RESTRICTION OF CERTAIN VEHICLES vehicular travel; synonymous and interchangeable in usage with “street”.

(m)Length: The total longitudinal dimension of any vehicle or combination of vehicles, including any load or load holding devices thereon.

(n)Load: A weight or quantity of anything resting upon a support.

(o)Motor Vehicle: A vehicle which is self-propelled or propelled by electric power obtained from overhead trolley wires, but not operating upon rails.

(p)Owner: A person, other than a lienholder, having the property in or title to a vehicle, including a person entitled to use and possession of a vehicle subject to a security interest in another person, but excluding a lessee under a lease not intended as security.

(q)Portable Scales: A movable weighing device.

(r)Primary Road: A primary road is a road with two

(2)or more lanes each way, or any road with at least two

(2)contiguous miles with a speed limit of thirty-five

(35)miles per hour or greater.

(s)Scale Tolerance: An allowable variation in the static weight of an axle load in accordance with, but not exceeding, the precision of the scale involved.

(t)Secondary Road: A secondary road is any road, paved or unpaved, that does not meet the definition of “primary road” as herein stated.

(u)Semi-Trailer: A vehicle designed for carrying persons or property and drawn by a truck-tractor on which parts of its weight and load rests.

(v)Single Axle: An assembly of two

(2)or more wheels, whose centers are on one

(1)transverse vertical plane or may be included between two

(2)parallel transverse vertical planes forty

(40)inches or less apart extending the full width of the vehicle. COL4/6/2022 CH. 5 SIZE, WEIGHT AND LOAD LIMITATIONS AND RESTRICTION OF CERTAIN VEHICLES

(w)Single Axle Weight: The total weight transmitted to the road by a single axle.

(x)Single Trip Permit: A special permit issued for oversize or overweight loads, valid for a single trip on a specified route between predetermined points of origin and destination, and which shall expire within twenty-four

(24)hours.

(y)Special Permit: A written authorization to move or operate on a highway, a vehicle or vehicles with indivisible load of a size and/or weight exceeding the limits prescribed for vehicles in regular operation. Said permit may be for a single trip or for a continuous trip.

(z)Static Scales: An immovable measuring scale, similar to a ruler, that is attached to the edge of an optical comparator screen.

(aa)Tandem Axle: Any two

(2)or more consecutive axles whose centers are more than forty

(40)inches and not more than ninety-six

(96)inches apart, and are individually attached and/or articulated from a common attachment to the vehicle including a connecting mechanism designed to equalize the load between the axles.

(bb)Tandem Axle Weight: The total weight transmitted to the road by a tandem axle.

(cc)Trailer: A vehicle designed for carrying persons or property and drawn by a motor vehicle which carries no part of the weight and load of the trailer on its own wheels.

(dd)Truck: A motor vehicle designed, used or maintained primarily for the transportation of property.

(ee)Truck-Tractor: A motor vehicle designed for drawing other vehicles, but not for a load other than a part of the weight of the vehicle and load drawn.

(ff)Vehicle: A device in, upon or by which any person or property may be transported or drawn upon a highway.

(gg)Vehicle Combination: A truck-tractor and semi- COL4/6/2022 CH. 5 SIZE, WEIGHT AND LOAD LIMITATIONS AND RESTRICTION OF CERTAIN VEHICLES trailer, either with or without a full trailer, or a truck with one

(1)or more full trailers.

(hh)Weigh-in-Motion Scales: Weighing-in-Motion

(WIM)is, as the name implies, the process of weighing a vehicle as it is moving along the highway in an effort to estimate the equivalent static weight of the vehicle.

(ii)Wheel Load: The total load transmitted to the road by a wheel. Dual wheels that share an axle mounting are considered a single wheel for load requirements.

(jj)Width: The total outside transverse dimension of a vehicle, including any load or load holding devices thereon, but excluding approved safety devices and tire bulge due to load.