A roller coaster is a type of amusement ride that is a form of elevated railroad track designed with tight turns steep slopes people ride along the track in open cars and the rides are often found in amusement parks and theme parks around the world the track in a coasters design does not necessarily have to be a fun ride just has to have a machine that controls it as some roller coasters demonstrate most roller coasters have a lot cars in which passengers sit and are restrained two or more cars hooked together are called a train some roller coasters wild mouse roller coasters run with single cars.
Many safety systems are set in roller coasters one of these is the block system most large roller coasters have the ability to run two or more trains at once and the block system prevents these trains from colliding in this system the track is divided into several sections or blocks only one train at a time is aloud in each block at the end of each block there is a track where a train can be stopped if necessary either by preventing dispatch from the station closing brakes or stopping a lift sensors at the end of each block detect when a train passes so that the computer running the ride is aware of which blocks are used when the computer detects a train about to travel into an already occupied block it uses whatever method is available to keep it from entering the trains are fully automated Statistically roller coasters are very safe compared to other activities the U.S. Consumer Product Safety Commission(CPSC) estimates that one hundred twenty three park guests required hospitalization in 2001 and that fatalities related to amusement rides average two per year according to a study commissioned by Six Flags 319 million people visited parks in 2001 the study concluded that a visitor has a one in one-and-a-half billion chance of being fatally injured and that the injury rates for children’s wagons golf carts and folding lawn chairs are higher than for amusement rides.
Ride accidents can also be caused by riders themselves or ride operators not following safety directions properly and in extremely rare cases riders can be injured by mechanical failures in recent years controversy has arisen about the safety of increasingly extreme rides there have been suggestions that these may be subjecting passengers to translational and rotational accelerations that may be capable of causing brain injuries In 2003 the Brain Injury association of america concluded in a report that there is evidence that roller coaster rides pose a health risk to some people some of the time equally evident is that the overwhelming majority of riders will suffer no ill effects.
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