The year 1611 marked an important time for trucks, as that is when the word originated. The usage of "truck" referred to the small strong wheels on ships' cannon carriages. Further extending its usage in 1771, it came to refer to carts for carrying heavy loads. In 1916 it became shortened, calling it a "motor truck".While since the 1930's its expanded application goes as faras tosay "motor-powered load carrier".
Medium trucks are larger than light but smaller than heavy trucks. In the US, theyare definedas weighing between 13,000 and 33,000 pounds (6,000 and 15,000 kg). For the UK and the EU, the weight is between 3.5 and 7.5 tons (3.9 and 8.3 tons).Local delivery and public service (dump trucks, garbage trucks, and fire-fighting trucks) are around this size.
Popular among campers is the use of lightweight trailers, such as aerodynamic trailers. These canbe towed bya small car, such as the BMW Air Camper. Theyare builtwith the intent to lower the tow of the vehicle, thus minimizing drag.
The Federal Motor Carrier Safety Administration (FMCSA) is an agency within the United States Department of Transportation.The purpose of the FMCSA is to regulate safety within the trucking and moving industry in the United States.The FMCSA enforces safety precautions that reduce crashes, injuries, and fatalities involving large trucks and buses.
In 1893, the Office of Road Inquiry (ORI)was establishedas an organization.However, in 1905 the namewas changedto the Office Public Records (OPR).The organization then went on to become a division of the United States Department of Agriculture. As seen throughout history, organizations seem incapable of maintaining permanent names.So, the organization's namewas changedthree more times, first in 1915 to the Bureau of Public Roads and again in 1939 to the Public Roads Administration (PRA). Yet again, the name was later shifted to the Federal Works Agency, although itwas abolishedin 1949.Finally, in 1949, the name reverted to the Bureau of Public Roads, falling under the Department of Commerce. With so many name changes, it can be difficult to keep up to date with such organizations. This is why it is most important to research and educate yourself on such matters.
The American Association of State Highway and Transportation Officials (AASHTO) conducted a series of tests.These tests were extensive field tests of roads and bridges to assess damages to the pavement.In particular they wanted to know how traffic contributes to the deterioration of pavement materials. These testsessentiallyled to the 1964 recommendation by AASHTO to Congress.The recommendation determined the gross weight limit for trucks tobe determined bya bridge formula table. This includes table based on axle lengths, instead of a state upper limit. By the time 1970 came around, there were over 18 million truck on America's roads.