Prior to the 20th century, freight was generally transported overland via trains and railroads. During this time, trains were essential, and they were highly efficient at moving large amounts of freight. But, they could only deliver that freight to urban centers for distribution by horse-drawn transport. Though there were several trucks throughout this time, they were used more as space for advertising that for actual utility. At this time, the use of range for trucks was quite challenging. The use of electric engines, lack of paved rural roads, and small load capacities limited trucks to most short-haul urban routes.
Receiving nation attention during the 1960's and 70's, songs and movies about truck driving were major hits. Finding solidarity, truck drivers participated in widespread strikes. Truck drivers from all over opposed the rising cost of fuel. Not to mention this is during the energy crises of 1873 and 1979. In 1980 the Motor Carrier Act drastically deregulated the trucking industry. Since then trucking has come to dominate the freight industry in the latter part of the 20th century. This coincided with what are now known as 'big-box' stores such as Target or Wal-Mart.
A commercial driver's license (CDL) is a driver's license required to operate large or heavy vehicles.
In many countries, driving a truck requires a special driving license. The requirements and limitations vary with each different jurisdiction.
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).
In the United States, a commercial driver's license is required to drive any type of commercial vehicle weighing 26,001 lb (11,794 kg) or more. In 2006 the US trucking industry employed 1.8 million drivers of heavy trucks.
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.
Within the world of transportation, bypass routes are often very controversial. This is mostly due to the fact that they require the building of a road carrying heavy traffic where no road existed before. This has created conflict among society thus creating a divergence between those in support of bypasses and those who are opposed. Supporters believe they reduce congestion in built up areas. Those in opposition do not believe in developing (often rural) undeveloped land. In addition, the cities that are bypassed may also oppose such a project as reduced traffic may, in turn, reduce and damage business.
In the United States, the Commercial Motor Vehicle Safety Act of 1986 established minimum requirements that must be met when a state issues a commercial driver's license CDL. It specifies the following types of license:
- Class A CDL drivers. Drive vehicles weighing 26,001 pounds or greater, or any combination of vehicles weighing 26,001 pounds or greater when towing a trailer weighing more than 10,000 pounds. Transports quantities of hazardous materials that require warning placards under Department of Public Safety regulations.
- Class A Driver License permits. Is a step in preparation for Class A drivers to become a Commercial Driver.
- Class B CDL driver. Class B is designed to transport 16 or more passengers (including driver) or more than 8 passengers (including the driver) for compensation.
This includes, but is not limited to, tow trucks, tractor trailers, and buses.
In the United States, commercial truck classification is fixed by each vehicle's gross vehicle weight rating (GVWR). There are 8 commercial truck classes, ranging between 1 and 8. Trucks are also classified in a more broad way by the DOT's Federal Highway Administration (FHWA). The FHWA groups them together, determining classes 1-3 as light duty, 4-6 as medium duty, and 7-8 as heavy duty. The United States Environmental Protection Agency has its own separate system of emission classifications for commercial trucks. Similarly, the United States Census Bureau had assigned classifications of its own in its now-discontinued Vehicle Inventory and Use Survey (TIUS, formerly known as the Truck Inventory and Use Survey).
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.
Compliance, Safety, and Accountability (CSA) are fundamental to the FMCSA's compliance program. The purpose of the CSA program is to oversee and focus on motor carriers' safety performance. To enforce such safety regulations, the CSA conducts roadside inspections and crash investigations. The program issues violations when instances of noncompliance with CSA safety regulations are exposed.
Unfortunately, the CSA's number of safety investigation teams and state law enforcement partners are rather small in comparison to the millions of CMV companies and commercial driver license (CDL) holders. A key factor in the CSA program is known as the Safety Measurement System (SMS). This system relies on data analysis to identify unsafe companies to arrange them for safety interventions. SMS is incredibly helpful to CSA in finding and holding companies accountable for safety performance.
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 had been relied on 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 freight was manufactured or produced for the different areas internationally, the time it takes to transport goods has decreased dramatically.
There are many different types of trailers that are designed to haul livestock, such as cattle or horses. Most commonly used are the stock trailer, which is enclosed on the bottom but has openings at approximately. This opening is at the eye level of the animals in order to allow ventilation. A horse trailer is a much more elaborate form of stock trailer. Generally horses are hauled with the purpose of attending or participating in competition. Due to this, they must be in peak physical condition, so horse trailers are designed for the comfort and safety of the animals. They're typically well-ventilated with windows and vents along with specifically designed suspension. Additionally, horse trailers have internal partitions that assist animals staying upright during travel. It's also to protect other horses from injuring each other in transit. There are also larger horse trailers that may incorporate more specialized areas for horse tack. They may even include elaborate quarters with sleeping areas, bathroom, cooking facilities etc.
The FMCSA has established rules to maintain and regulate the safety of the trucking industry. According to FMCSA rules, driving a goods-carrying CMV more than 11 hours or to drive after having been on duty for 14 hours, is illegal. Due to such heavy driving, they need a break to complete other tasks such as loading and unloading cargo, stopping for gas and other required vehicle inspections, as well as non-working duties such as meal and rest breaks. The 3-hour difference between the 11-hour driving limit and 14 hour on-duty limit gives drivers time to take care of such duties. In addition, after completing an 11 to 14 hour on duty period, the driver much be allowed 10 hours off-duty.
Unfortunately for the trucking industry, their image began to crumble during the latter part of the 20th century. As a result, their reputation suffered. More recently truckers have been portrayed as chauvinists or even worse, serial killers. The portrayals of semi-trailer trucks have focused on stories of the trucks becoming self-aware. Generally, this is with some extraterrestrial help.
Some trailers can be towed by an accessible pickup truck or van, which generally need no special permit beyond a regular license. Such examples would be enclosed toy trailers and motorcycle trailers. Specialized trailers like an open-air motorcycle trailer and bicycle trailers are accessible. Some trailers are much more accessible to small automobiles, as are some simple trailers pulled by a drawbar and riding on a single set of axles. Other trailers also have a variety, such as a utility trailer, travel trailers or campers, etc. to allow for varying sizes of tow vehicles.
In today's popular culture, recreational vehicles struggle to find their own niche. Travel trailers or mobile home with limited living facilities, or where people can camp or stay have been referred to as trailers. Previously, many would refer to such vehicles as towable trailers.
The industry intends to both consumers as well as moving companies, this is why there are Ministers of Transportation in the industry. They are there to set and maintain laws and regulations in place to create a safer environment. It offers its members professional service training and states the time that movers have been in existence. It also provides them with federal government representation and statistical industry reporting. Additionally, there are arbitration services for lost or damaged claims, publications, public relations, and annual tariff updates and awards. This site includes articles as well that give some direction, a quarterly data summary, and industry trends.
Heavy trucks. A cement mixer is an example of Class 8 heavy trucks. Heavy trucks are the largest on-road trucks, Class 8. These include vocational applications such as heavy dump trucks, concrete pump trucks, and refuse hauling, as well as ubiquitous long-haul 6×4 and 4x2 tractor units. Road damage and wear increase very rapidly with the axle weight. The axle weight is the truck weight divided by the number of axles, but the actual axle weight depends on the position of the load over the axles. The number of steering axles and the suspension type also influence the amount of the road wear. In many countries with good roads, a six-axle truck may have a maximum weight over 50 tons (49 long tons; 55 short tons).
