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 shouldbe mountedto 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).
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.
Business routes always have the same number as the routes they parallel. For example, U.S. 1 Business is a loop off, and paralleling, U.S. Route 1, and Interstate 40 Business is a loop off, and paralleling, Interstate 40.
As the American Interstate Highway System began to expand in the 1950's, the trucking industry began to take over a large market share. That is, a large share of the transportation of goods throughout the country. Before this era, trains hadbeen reliedon to transport the bulk of the goods cross country or state to state.The Interstate Highway System was influential as it allows for merchandise to travel door to door with ease.Since then, truckload carriers have taken advantage of the interstate system, especially when performing a long distance move.Typically, they bring the merchandise from one distribution center of the country to another part of the country.The increase in truckload freight transportation has reduced the time it takes to transport the goods.Whether the freightwas manufacturedor produced for the different areasinternationally, the time it takes to transport goods has decreased dramatically.
Tracing the origins of particular words can be quite different with so many words in the English Dictionary.Some say the word "truck" might have come from a back-formation of "truckle", meaning "small wheel" or "pulley". In turn, both sources emanate from the Greektrokhos(τροχός), meaning "wheel", fromtrekhein(τρέχειν, "to run").