In the United States, shipments larger than about 7,000 kg (15,432 lb)are classifiedas truckload freight (TL). It is more efficient and affordable for a large shipment to have exclusive use of one larger trailer. Thisis opposedto having to share space on a smaller Less than Truckload freight carrier.
The number one hit on the Billboard chart in 1976 was quite controversial for the trucking industry. "Convoy," is a song about a group of reckless truck drivers bent on evading laws such as toll booths and speed traps.The song went on to inspire the film "Convoy", featuring defiant Kris Kristofferson screaming "piss on your law!" After the film's release, thousands of independent truck drivers went on strike. The participated in violent protests during the 1979 energy crisis.However, similar strikes had occurred during the 1973 energy crisis.
The American Trucking Associations initiated in 1985 with the intent to improve the industry's image. With public opinion declining the association triednumerousmoves.One such move was changing the name of the "National Truck Rodeo" to the "National Driving Championship". This was due to the fact that the word rodeo seemed to imply recklessness and reckless driving.
Although there are exceptions, city routes areinterestinglymost often found in the Midwestern area of the United States. Though theyessentiallyserve the same purpose as business routes, they are different. They feature "CITY" signs as opposed to "BUSINESS" signs above or below route shields. Many of these city routes are becoming irrelevant for today's transportation. Due to this, they are being eliminated in favor of the business route designation.
The concept of a bypass is a simple one. It is a road or highway thatpurposelyavoids or "bypasses" a built-up area, town, or village.Bypasseswere createdwith the intent to let through traffic flow without having to get stuck in local traffic. In general theyare supposedto reduce congestion in a built-up area. By doing so, road safety willgreatlyimprove.
A bypass designated for trucks traveling a long distance, either commercial or otherwise,is calleda truck route.
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 alsobe usedfor 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.