Sanders Transfer

The intention of a trailer coupler is to secure the trailer to the towing vehicle. It is an important piece, as the trailer couple attaches to the trailer ball. This then forms a ball and socket connection. It allows for relative movement between the towing vehicle and trailer while towing over uneven road surfaces. The trailer ball should be mounted to the rear bumper or to a drawbar, which may be removable. The drawbar secures to the trailer hitch by inserting it into the hitch receiver and pinning it.   The three most common types of couplers used are straight couplers, A-frame couplers, and adjustable couplers. Another option is bumper-pull hitches in which case draw bars can exert a large amount of leverage on the tow vehicle. This makes it harder to recover from a swerving situation (thus it may not be the safest choice depending on your trip).

“Country music scholar Bill Malone has gone so far as to say that trucking songs account for the largest component of work songs in the country music catalog. For a style of music that has, since its commercial inception in the 1920s, drawn attention to the coal man, the steel drivin’ man, the railroad worker, and the cowboy, this certainly speaks volumes about the cultural attraction of the trucker in the American popular consciousness.” — Shane Hamilton

Popular among campers is the use of lightweight trailers, such as aerodynamic trailers. These can be towed by a small car, such as the BMW Air Camper. They are built with the intent to lower the tow of the vehicle, thus minimizing drag.

A business route (occasionally city route) in the United States and Canada is a short special route connected to a parent numbered highway at its beginning, then routed through the central business district of a nearby city or town, and finally reconnecting with the same parent numbered highway again at its end.

The American Association of State Highway and Transportation Officials (AASHTO) is an influential association as an advocate for transportation. Setting important standards, they are responsible for publishing specifications, test protocols, and guidelines. All which are used in highway design and construction throughout the United States. Despite its name, the association represents more than solely highways. Alongside highways, they focus on air, rail, water, and public transportation as well.

As of January 1, 2000, the Federal Motor Carrier Safety Administration (FMCSA) was established as its own separate administration within the U.S. Department of Transportation. This came about under the "Motor Carrier Safety Improvement Act of 1999". The FMCSA is based in Washington, D.C., employing more than 1,000 people throughout all 50 States, including in the District of Columbia. Their staff dedicates themselves to the improvement of safety among commercial motor vehicles (CMV) and to saving lives.

The most basic purpose of a trailer jack is to lift the trailer to a height that allows the trailer to hitch or unhitch to and from the towing vehicle. Trailer jacks may also be used for the leveling of the trailer during storage. To list a few common types of trailer jacks are A-frame jacks, swivel jacks, and drop-leg jacks. Other trailers, such as horse trailers, have a built-in jack at the tongue for this purpose.

Light trucks are classified this way because they are car-sized, yet in the U.S. they can be no more than 6,300 kg (13,900 lb). These are used by not only used by individuals but also businesses as well. In the UK they may not weigh more than 3,500 kg (7,700 lb) and are authorized to drive with a driving license for cars. Pickup trucks, popular in North America, are most seen in North America and some regions of Latin America, Asia, and Africa. Although Europe doesn't seem to follow this trend, where the size of the commercial vehicle is most often made as vans.