Towing is the process of pulling or drawing behind a chain, line, bar or some other form of couplings. Towing is most visible performed by road vehicles, but anything from waterborne vessels to tractors to people can tow cargo. Troop carrying and cargo carrying gliders were towed behind powered aircraft during WW2 and remains a popular means for modern for leisure gliders to take off. In the maritime industry in particular, towing is a refined science.Towing safety measures, there are many safely considerations to properly towing a caravan of trailer starting with vehicle towards capacity and ranging through equalizer hitches to properly and legally connecting the safety chains. According to the United States national highway traffic safety association, more than 65,000 crashes involving passenger vehicles towing trailers occurred in 2005 in the US, jumping nearly 20 percent from the previous year. The study, towing troubles included responses from trailer owners across the country and found that while the majority of trailer owners believe they know what they are doing when it comes to towing, most were lacking the proper education.

Master lock report that 70 percent of trailer owners did not fully know the correct way to tow their cargo.Many cars fitted with tow bars, most are likely to have fitted towing electrics which are hidden from the car. This system is used to protect the cars lighting systems from potential damage if wiring in a trailer should malfunction. Is a tried and tested system in very wide use. Bypass system are found both in universal system and in dedicated and OEM systems.Some of the advanced system being introduced in certain vehicles that may make use of detecting the presence of a trailer are: lane change assistant, brake electronics, adaptive cruise control, suspension system, engine electronics, engine cooling system, parking aids, and reversing camera.On vehicles that do not have safety features that depend on the vehicle sensing the presence of a trailer, bypass systems, properly installed by expert fitters, are very efficient and cost effective alternatives to expensive OEM and other dedicated kits.

They have the built-in advantage of completely isolating the trailer from the vehicle's lighting system, thus protecting against damage to the car caused by any failure within the trailer's wiring. However, a number of manufacturers do not recommend connections to be made on the lighting harnesses.This system is used to protect the car's lighting systems from potential damage if wiring in a trailer should malfunction. It is a tried and tested system in very wide use. It does not communicate with the vehicle and will not activate any safety or convenience systems. It is not advised for use in cars that depend on sensing the presence of a trailer to activate towing-related safety features within the car. In addition to this, there are a number of vehicle manufacturers that do not recommend or actually ban any connections to be made from the vehicle lighting harness.

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