Tow truck
Encyclopedia
A tow truck is a vehicle used to transport motor vehicle
Motor vehicle
A motor vehicle or road vehicle is a self-propelled wheeled vehicle that does not operate on rails, such as trains or trolleys. The vehicle propulsion is provided by an engine or motor, usually by an internal combustion engine, or an electric motor, or some combination of the two, such as hybrid...

s to another location (generally a repair garage
Automobile repair shop
An automobile repair shop is a place where automobiles are repaired by auto mechanics and electricians.- Types :The automotive garage can be divided in so many category....

), or to recover vehicles which are no longer on a drivable surface.

Towing services are generally provided by an emergency road service operator. Vehicles are often towed in the case of breakdowns
Breakdown (vehicle)
A vehicle breakdown is the operational failure of a motor vehicle in such a way that the underlying problem prevents the vehicle from being operated at all, or impedes the vehicle's operation so much, that it is very difficult or nearly impossible, or dangerous to operate, or else at risk of...

 or collisions
Car accident
A traffic collision, also known as a traffic accident, motor vehicle collision, motor vehicle accident, car accident, automobile accident, Road Traffic Collision or car crash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road debris, or other stationary obstruction,...

, or may be impounded for legal reasons.

History

The tow truck was invented in 1916 by Ernest Holmes, Sr., of Chattanooga, Tennessee
Chattanooga, Tennessee
Chattanooga is the fourth-largest city in the US state of Tennessee , with a population of 169,887. It is the seat of Hamilton County...

. He was a garage worker who was inspired to create the invention after he was forced to pull a car out of a creek using blocks, ropes, and six men. An improved design led him to manufacture wreckers. A museum in Chattanooga called the International Towing and Recovery Hall of Fame and Museum
International Towing and Recovery Hall of Fame and Museum
The International Towing & Recovery Hall Of Fame and Museum features restored antique wreckers and equipment from the tow truck industry. The museum also displays related toys, tools, equipment, and pictorial histories....

 features restored antique wreckers and displays related toys, tools, equipment, and pictorial histories of the tow truck industry.

Types of towing equipment

Five general types are in common usage, usually based on the type or size of vehicle to be towed truck
Truck
A truck or lorry is a motor vehicle designed to transport cargo. Trucks vary greatly in size, power, and configuration, with the smallest being mechanically similar to an automobile...

 chassis
Chassis
A chassis consists of an internal framework that supports a man-made object. It is analogous to an animal's skeleton. An example of a chassis is the underpart of a motor vehicle, consisting of the frame with the wheels and machinery.- Vehicles :In the case of vehicles, the term chassis means the...

:
  • Boom – not specifically for towing, many trucks are equipped with an adjustable boom winch for recovering vehicles that are in a ditch
    Ditch
    A ditch is usually defined as a small to moderate depression created to channel water.In Anglo-Saxon, the word dïc already existed and was pronounced 'deek' in northern England and 'deetch' in the south. The origins of the word lie in digging a trench and forming the upcast soil into a bank...

    , culvert
    Culvert
    A culvert is a device used to channel water. It may be used to allow water to pass underneath a road, railway, or embankment. Culverts can be made of many different materials; steel, polyvinyl chloride and concrete are the most common...

    , over an embankment
    Embankment (transportation)
    To keep a road or railway line straight or flat, and where the comparative cost or practicality of alternate solutions is prohibitive, the land over which the road or rail line will travel is built up to form an embankment. An embankment is therefore in some sense the opposite of a cutting, and...

    , or any place the vehicle cannot be safely backed-up to.
  • Hook
    Lifting hook
    A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane. A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached.A hook may have one or more...

     and chain
    (also known as a "sling" or "belt lift") – chains are looped around the vehicle frame or axle, which is drawn aloft by a boom winch to rest against a pair of heavy rubberized mats so the customer's vehicle can be towed on its other axle. Slings are not used much today because they can scratch the bumpers of cars. But they are sometimes used for towing vehicles that have been in an accident or have one or two of the front or rear wheels missing or for pickup trucks and other vehicles that have steel bumpers
  • Wheel-Lift – evolved from the hook and chain technology to produce a large metal yoke that can be fitted under the front or rear wheels to cradle them, drawing the front or rear end of the vehicle clear of the ground by a pneumatic or hydraulic hoist so it can be towed. This apparatus generally picks up the drive wheels of the vehicle (ie the front wheels if it is front wheel drive, the rear wheels if it is rear wheel drive) touching only the tires.
  • Flatbed (also called a Rollback or a Slide) – the entire back of the truck is fitted with a bed that can be hydraulically inclined and moved to ground level, allowing the vehicle being towed to be placed on it under its own power or pulled by a winch.
  • Integrated (also referred to as a "Self Loader" Snatcher, Quick Pick or Repo Truck) – boom and wheel-lift integrated into one unit. Used in light duty trucks to repossess vehicles or move illegally parked vehicles. Most have controls for the apparatus inside the cab of the tow truck to make quick pickup possible without the inconvenience of exiting the truck to hook up the vehicle. Heavy duty trucks are also manufactured with integrated lift.


These are the most common arrangements, but are by no means exclusive, as there are flatbed units that offer a wheel-lift, boom trucks that can recover but not tow, and wheel-lift units that offer a combination boom with sling.

Operations

Tow trucks are usually operated by private businesses, except for major highway
Highway
A highway is any public road. In American English, the term is common and almost always designates major roads. In British English, the term designates any road open to the public. Any interconnected set of highways can be variously referred to as a "highway system", a "highway network", or a...

s and toll road
Toll road
A toll road is a privately or publicly built road for which a driver pays a toll for use. Structures for which tolls are charged include toll bridges and toll tunnels. Non-toll roads are financed using other sources of revenue, most typically fuel tax or general tax funds...

s, where the road authority may operate the tow trucks for that stretch of road. Businesses who operate a large fleet of vehicles
Fleet vehicles
Fleet vehicles are groups of motor vehicles owned or leased by a business or government agency, rather than by an individual or family. Typical examples are vehicles operated by car rental companies, taxicab companies, public utilities, public bus companies, and police departments...

, such as school bus
School bus
A school bus is a type of bus designed and manufactured for student transport: carrying children and teenagers to and from school and school events...

 companies or package delivery services, often own one or several tow trucks for the purposes of towing their own vehicles. Government departments with large fleets (such as the police departments, fire department
Fire department
A fire department or fire brigade is a public or private organization that provides fire protection for a certain jurisdiction, which typically is a municipality, county, or fire protection district...

s, transportation authorities and departments of public works of major cities) may similarly own tow truck(s). Police department tow trucks may also be used to impound
Confiscation
Confiscation, from the Latin confiscatio 'joining to the fiscus, i.e. transfer to the treasury' is a legal seizure without compensation by a government or other public authority...

 other vehicles.

In the Australian states of New South Wales, Queensland and Victoria there exists a Tow Truck Act, and tow trucks are identified by number plates ending in "TT". An example of a statute regulating the operation of tow trucks and the towing industry generally is the Victorian Accident Towing Services Act
Accident Towing Services Act
The Accident Towing Services Act 2007 is a law enacted by the Parliament of the State of Victoria, Australia. The Act is the prime statute regulating the vehicle towing industry which provides towing and recovery services for light and heavy road vehicles across Victoria. It is predominately...

.

Dispatching

Requests for service are placed to a dispatching
Dispatch (logistics)
Dispatch is a procedure for assigning employees or vehicles to customers. Industries that dispatch include taxicabs, couriers, emergency services, as well as home and commercial services such as maid services, plumbing, HVAC, pest control and electricians.With vehicle dispatching, clients are...

 center. Some tow services communicate with drivers using wireless
Wireless
Wireless telecommunications is the transfer of information between two or more points that are not physically connected. Distances can be short, such as a few meters for television remote control, or as far as thousands or even millions of kilometers for deep-space radio communications...

 telephone
Telephone
The telephone , colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other...

 equipment. In others, the dispatching center contacts an available tow truck driver via mobile radio
Mobile Radio
This article is about professional equipment. For mobile radios used in amateur radio, see amateur radio mobile operation. Mobile radio or mobiles refer to wireless communications systems and devices which are based on radio frequencies, and where the path of communications is movable on either...

 or by sending a text message using a mobile data terminal
Mobile data terminal
A mobile data terminal is a computerized device used in public transit vehicles, taxicabs, courier vehicles, service trucks, commercial trucking fleets, military logistics, fishing fleets, warehouse inventory control, and emergency vehicles to communicate with a central dispatch office...

. Recent technology includes the use of GPS and on board wireless equipment to dispatch drivers via an LCD screen receiver.

Impounds and storage

Many tow companies have the capability to store vehicles that have been wrecked or impounded by police agencies. In these circumstances, police agencies notify a contracted towing provider to secure the vehicle and tow it to a storage lot. The tow company will sometimes prevent access to the vehicle until the law states the owner can claim it (usually after any fines are paid).

Nearly all tow companies charge a fee for storing vehicles.

GPS and AVL

Navigation system
Automotive navigation system
An automotive navigation system is a satellite navigation system designed for use in automobiles. It typically uses a GPS navigation device to acquire position data to locate the user on a road in the unit's map database. Using the road database, the unit can give directions to other locations...

s are becoming more commonly used to tell the location
Location (geography)
The terms location and place in geography are used to identify a point or an area on the Earth's surface or elsewhere. The term 'location' generally implies a higher degree of can certainty than "place" which often has an ambiguous boundary relying more on human/social attributes of place identity...

 (of stranded vehicles) to tow trucks. Automatic vehicle location
Automatic vehicle location
Automatic vehicle location is a means for automatically determining the geographic location of a vehicle and transmitting the information to a requester....

 (AVL) systems are sometimes used to help the dispatch center staff determine the closest tow truck. AVL may use GPS technology. It may display the location of all tow trucks on a map or may feed data directly to a computer-assisted dispatch
Computer-assisted dispatch
Computer-assisted dispatch, also called Computer Aided Dispatch , is a method of dispatching taxicabs, couriers, field service technicians, or emergency services assisted by computer. It can either be used to send messages to the dispatchee via a mobile data terminal and/or used to store and...

 system which automatically recommends the closest available units.

See also

  • Automotive navigation system
    Automotive navigation system
    An automotive navigation system is a satellite navigation system designed for use in automobiles. It typically uses a GPS navigation device to acquire position data to locate the user on a road in the unit's map database. Using the road database, the unit can give directions to other locations...

  • Armoured recovery vehicle
    Armoured recovery vehicle
    An armoured recovery vehicle is a type of armoured fighting vehicle used to repair battle- or mine-damaged as well as broken-down armoured vehicles during combat, or to tow them out of the danger zone for more extensive repairs...

  • Breakdown (vehicle)
    Breakdown (vehicle)
    A vehicle breakdown is the operational failure of a motor vehicle in such a way that the underlying problem prevents the vehicle from being operated at all, or impedes the vehicle's operation so much, that it is very difficult or nearly impossible, or dangerous to operate, or else at risk of...

  • Car safety
    Car safety
    Automobile safety is the study and practice of vehicle design, construction, and equipment to minimize the occurrence and consequences of automobile accidents. Automobile safety is the study and practice of vehicle design, construction, and equipment to minimize the occurrence and consequences of...

  • Emergency road service
  • Impounded vehicle auction
    Impounded vehicle auction
    An impounded vehicle auction is a type of auction that specializes in selling abandoned and disabled vehicles. Once a car is towed by municipalities or private companies and the requisite time has passed, the cars are auctioned to recover the cost of towing and storage.These auctions are...

  • Insurance
    Insurance
    In law and economics, insurance is a form of risk management primarily used to hedge against the risk of a contingent, uncertain loss. Insurance is defined as the equitable transfer of the risk of a loss, from one entity to another, in exchange for payment. An insurer is a company selling the...

  • Spectacle lift
    Spectacle Lift
    Spectacle lift refers to the equipment used on a type of specialist breakdown recovery vehicle. The name spectacle lift is because the wheel 'grids' resemble a pair of spectacles when in their raised position as observed from the rear of the vehicle....

  • Tow hitch
    Tow hitch
    A tow hitch is a device attached to the chassis of a vehicle for towing or a towbar to an aircraft nose gear, or paired main gears....

  • Tow (disambiguation)
  • Vehicle recovery
    Vehicle recovery
    Vehicle recovery is the recovery of any vehicle to another place, generally speaking with a commercial vehicle known as a recovery vehicle, tow truck or spectacle lift....


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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