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Multiple-vehicle collision
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A multi-vehicle collision (colloquially known as a pile-up) is a road traffic accident involving many vehicles. Generally occurring on freeways, they are one of the deadliest forms of traffic accidents.
-ups generally occur in low-visibility conditions, like rain or fog. In such conditions drivers on highways often drive closer together than they should. If one car develops a problem, those behind it cannot stop in time, hitting it.
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Encyclopedia
A multi-vehicle collision (colloquially known as a pile-up) is a road traffic accident involving many vehicles. Generally occurring on freeways, they are one of the deadliest forms of traffic accidents.
Causes
Pile-ups generally occur in low-visibility conditions, like rain or fog. In such conditions drivers on highways often drive closer together than they should. If one car develops a problem, those behind it cannot stop in time, hitting it. As cars are forced into other lanes and oncoming traffic more vehicles become involved. The most disastrous pile-ups have involved more than a hundred vehicles. (In such conditions, 'rear fog lamps' should be used. See 'Defensive driving').
Determining the cause of such accidents is difficult for investigators and it is often impossible to tell if negligence caused the crash.
Effects
They are particularly deadly as the solid mass of crumpled vehicles makes escape difficult. A fire in one part of the accident can quickly spread to spilled fuel and cover the entire crash area. Vehicles in a pile up are often hit multiple times, increasing risk of injury to the passenger. Moreover cars are often spun during an accident and are subsequently hit from the side, increasing risk of injury or death. Some vehicle occupants choose to get out of their vehicles during a pile up, making them vulnerable to oncoming vehicles. Pile-ups can also overburden local firefighting, ambulance, and police services making quick rescues more difficult.
The large scale of these accidents can close important routes for several days. The destruction and intense heat of fires can also damage roadways, particularly by melting and burning the asphalt. Bridge structures can also be weakened by the heat. A pileup inside a tunnel is by far the worst, as there is little means for escape in older ones, and the unvented heat may even cause the concrete lining to come apart.
Other uses
In particle physics, the term pile-up refers to a situation where a particle detector is affected by several events at the same time.
In ham radio, particularly in DXing slang, it means the presence of many ham operators trying to communicate with a distant entity, all in the same time.
Major pileups
- 11 December 1990: Interstate 75 in Calhoun, Tennessee, United States, between Chattanooga and Knoxville near the Hiwassee River, due to very heavy fog; fiery crash involved 99 vehicles; 12 deaths and 42 injuries. A fog warning system has since been installed, and the highway patrol enforces speed limits aggressively.
- October 1991: A15 Motorway near Ochten, Netherlands, due to fog, 150 vehicles, 1 death, 64 injuries.
- 2 December 1994: Interstate 35 in San Antonio, Texas, United States, 127 car pile-up caused by blinding glare and rain-slicked roads, 67 injuries.
- 20 March 1995: Jubilee Parkway in Mobile, Alabama, United States, due to fog, 200 vehicles, 1 death, 90 injuries.
- 10 March 1997: M42 motorway in the United Kingdom, due to fog - 160 vehicles involved, 3 deaths, 60 injuries.
- 31 December 1998: 100 cars crashed on an ice-slicked section of Interstate-75 in central Michigan, killing one and injuring 39.
- 3 September, 1999: Highway 401 in Essex County, Ontario, Canada, just east of Windsor. Very dense fog and tailgating causes an 87-vehicle pile-up, killing 8, and injuring 33 more.
- February 2001: Interstate 95 in Stafford County, Virginia, United States, 131 vehicles plus two others nearby totaling 80 more, due to a snowstorm whiteout.
- March 2002: Interstate 75 in Catoosa County, Georgia, United States, due to one-time sudden fog, about 125 vehicles
- 12 January 2005: Interstate 96 in Ingham County, Michigan, United States, around 200 vehicles, due to dense fog leaving 2 dead and 35 injured.
- 17 March 2005: near Helsinki, Finland, around 300 cars crashed on highways leading to the capital, 3 deaths and 60 injuries. Visibility was very poor due to heavy snowfall and a week of clear weather had given drivers a false impression of safety.
- 5 November 2007: Highway 99 south of Fresno, California, United States, due to the tule fog that occurs frequently in fall and winter; involved more than 100 vehicles, killed at least 2 and injured dozens of others.
- 9 January 2008: Four people were killed and as many as 38 injured in a major pileup on Interstate 4 in north central Florida involving 70 vehicles, as fog mixed with smoke from a controlled fire that reached out-of-control proportions combined to make it almost impossible for motorists to see.
- 20 January 2008: More than 100 vehicles crashed into each other on Highway 400 near Toronto due to bad weather conditions.
- March 11, 2008: Around 6.39am UAE time a series of vehicle crashes occurred, involving cars, SUVs, buses and trucks, because of heavy fog on the Abu Dhabi-Dubai highway near Ghantoot, Abu Dhabi, in the United Arab Emirates, leading to the worst ever crash and multi-vehicle pileup in the country’s history. According to Dubai based Gulf News and Reuters the incident killed 3 people and injured 277, involving 60 vehicles from which 25 caught fire according to Abu Dhabi Police.
- 20 March 2008: 231 vehicles round about number of foci crashed at highway D1 in Vysocina Region of the Czech Republic. About 30 people were injured, 3 of them seriously. Nobody was killed.
- 25 March 2008: A near 60 vehicle pile-up in heavy snow on Austria's main east-west highway causes one death with six injuries.
- 11 January 2009: "More than 50 cars..." in Derry, NH
In popular culture
In the film Final Destination 2, there is a pileup on Route 23 at the beginning of the film.
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