The roller coaster ride called Rita is located at which English theme park?
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Roller_coaster.txt
Roller coaster
A roller coaster is an amusement ride developed for amusement parks and modern theme parks. LaMarcus Adna Thompson obtained a patent regarding roller coasters on January 20, 1885, which were made out of wood, but this patent is considerably later than the "Russian mountains" described below. In essence a specialized railroad system, a roller coaster consists of a track that rises in designed patterns, sometimes with one or more inversions (such as vertical loops) that briefly turn the rider upside down. The track does not necessarily have to be a complete circuit, as shuttle roller coasters demonstrate. Most roller coasters have multiple cars in which passengers sit and are restrained.[http://www.ultimaterollercoaster.com/coasters/glossary/#s Roller Coaster Glossary | Roller Coasters] Two or more cars hooked together are called a train. Some roller coasters, notably wild mouse roller coasters, run with single cars.

History

Russian mountain

The oldest roller coasters are believed to have originated from the so-called "Russian Mountains", which were specially-constructed hills of ice, located in an area that would later become St. Petersburg.   Built in the 17th century, the slides were built to a height of between 70 and, consisted of a 50 degree drop, and were reinforced by wooden supports.

Some historians say the first roller coaster was built under the orders of Russia's Catherine the Great in the Gardens of Oranienbaum in Saint Petersburg in the year 1784. Other historians believe that the first modern roller coaster was built by the French. The Promenades Aeriennes in Parc Baujon and the Les Montagnes Russes à Belleville (The Russian Mountains of Belleville) were both constructed in Paris in 1817 and both featured wheeled cars securely locked to the track, guide rails to keep them on course, and higher speeds.David Bennett (1998). Roller Coaster: Wooden and Steel Coasters, Twisters and Corkscrews.  Edison, New Jersey: Chartwell Books. 9. ISBN 0-7865-0885-X.

The name Russian Mountains to designate a roller coaster is preserved many Romance languages, such as the Spanish montaña rusa.  However, the Russian term for roller coasters is "" ("amerikanskiye gorki"), which means "American Mountains".

Scenic gravity railroads

In 1827, a mining company in Summit Hill, Pennsylvania constructed the Mauch Chunk gravity railroad, an  downhill track used to deliver coal to Mauch Chunk (now known as Jim Thorpe), Pennsylvania.  By the 1850s, the "Gravity Road" (as it became known) was providing rides to thrill-seekers for 50 cents a ride. Railway companies used similar tracks to provide amusement on days when ridership was low.

Using this idea as a basis, LaMarcus Adna Thompson began work on a gravity Switchback Railway that opened at Coney Island in Brooklyn, New York in 1884.  Passengers climbed to the top of a platform and rode a bench-like car down the 600 ft track up to the top of another tower where the vehicle was switched to a return track and the passengers took the return trip. This track design was soon replaced with an oval complete circuit.Steven J. Urbanowicz (2002). The Roller Coaster Lover's Companion.  Kensington, New York: Citadel Press. 4. ISBN 0-8065-2309-3.  In 1885, Phillip Hinkle introduced the first full-circuit coaster with a lift hill, the Gravity Pleasure Road, which was soon the most popular attraction at Coney Island. Not to be outdone, in 1886 LaMarcus Adna Thompson patented his design of roller coaster that included dark tunnels with painted scenery. "Scenic Railways" were to be found in amusement parks across the county, with Frederick Ingersoll's construction company building many of them in the first two decades of the 20th century.

Popularity, decline and revival

By 1919, the first underfriction roller coaster had been developed by John Miller.[http://patimg2.uspto.gov/.piw?Docid01319888&PageNum
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View+first+page Patent Images] Soon, roller coasters spread to amusement parks all around the world. Perhaps the best known historical roller coaster, The Cyclone, was opened at Coney Island in 1927.

The Great Depression marked the end of the first golden age of roller coasters, and amusement parks in general went into decline. This lasted until 1972, when The Racer was built at Kings Island in Mason, Ohio (near Cincinnati). Designed by John Allen, the instant success of The Racer began a second golden age, which has continued to this day.

Steel roller coasters

In 1959 Disneyland introduced a new design breakthrough with Matterhorn Bobsleds. This was the first roller coaster to use a tubular steel track. Unlike wooden coaster rails, which are generally formed using steel strips mounted on laminated wood, tubular steel can be easily bent in any direction, which allows designers to incorporate loops, corkscrews, and many other maneuvers into their designs. Most modern roller coasters are made of steel, although wooden coasters are still being built.

Etymology

There are several explanations of the name roller coaster. It is said to have originated from an early American design where slides or ramps were fitted with rollers over which a sled would coast. This design was abandoned in favor of fitting the wheels to the sled or other vehicles, but the name endured.

Another explanation is that it originated from a ride located in a roller skating rink in Haverhill, Massachusetts in 1887. A toboggan-like sled was raised to the top of a track which consisted of hundreds of rollers. This Roller Toboggan then took off down gently rolling hills to the floor. The inventors of this ride, Stephen E. Jackman and Byron B. Floyd, claim that they were the first to use the term "roller coaster".

The term jet coaster is used for roller coasters in Japan, where such amusement park rides are very popular.Robb and Elissa Alvey. [http://www.themeparkreview.com/japan2004/japan.htm "Theme Park Review: Japan 2004"], themeparkreview.com.  Retrieved on March 18, 2008.

In many languages, the name refers to "Russian mountains". Contrastingly, in Russian, they are called "American mountains". In Scandinavian languages, the roller coaster is referred as "mountain-and-valley railway".

Mechanics

The cars on a typical roller coaster are not self-powered. Instead, a standard full circuit coaster is pulled up with a chain or cable along the lift hill to the first peak of the coaster track. The potential energy accumulated by the rise in height is transferred to kinetic energy as the cars race down the first downward slope. Kinetic energy is then converted back into potential energy as the train moves up again to the second peak. This hill is necessarily lower, as some mechanical energy is lost to friction.

Not all rides feature a lift hill, however. The train may be set into motion by a launch mechanism such as a flywheel launch, linear induction motors, linear synchronous motors, hydraulic launch, compressed air launch or drive tire. Such launched coasters are capable of reaching higher speeds in a shorter length of track than those featuring a conventional lift hill. Some roller coasters move back and forth along the same section of track; these are known as shuttles and usually run the circuit once with riders moving forwards and then backwards through the same course.

A properly designed ride under good conditions will have enough kinetic, or moving, energy to complete the entire course, at the end of which brakes bring the train to a complete stop and it is pushed into the station. A brake run at the end of the circuit is the most common method of bringing the roller coaster ride to a stop. One notable exception is a powered roller coaster. These rides, instead of being powered by gravity, use one or more motors in the cars to propel the trains along the course.

If a continuous-circuit coaster does not have enough kinetic energy to completely travel the course after descending from its highest point (as can happen with high winds or increased friction), the train can valley: that is, roll backwards and forwards along the track, until all kinetic energy has been released. The train will then come to a complete stop in the middle of the track. This, however, works somewhat differently on a launched coaster. When a train launcher does not have enough potential energy to launch the train to the top of an incline, the train is said to roll back.

In 2006, NASA announced that it would build a system using principles similar to those of a roller coaster to help astronauts escape the Ares I launch pad in an emergency. 

Safety

Many safety systems are implemented 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 permitted in each block. At the end of each block, there is a section of 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 occupied. 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.

The above can cause a cascade effect when multiple trains become stopped at the end of each block. In order to prevent this problem, ride operators follow set procedures regarding when to release a newly loaded train from the station. One common pattern, used on rides with two trains, is to do the following: hold train #1 (which has just finished the ride) right outside the station, release train #2 (which has loaded while #1 was running), and then allow #1 into the station to unload safely.

Another key to safety is the control of the roller coaster's operating computers: programmable logic controllers (often called PLCs). A PLC detects faults associated with the mechanism and makes decisions to operate roller coaster elements (e.g. lift, track-switches and brakes) based on configured state and operator actions.  Periodic maintenance and inspection are required to verify structures and materials are within expected wear tolerances and are in sound working order.  Sound operating procedures are also a key to safety.

Roller coaster design requires a working knowledge of basic physics to avoid uncomfortable, even potentially fatal, strain to the rider. Ride designers must carefully ensure the accelerations experienced throughout the ride do not subject the human body to more than it can handle. The human body needs time to detect changes in force in order to control muscle tension. Failure to take this into account can result in severe injuries such as whiplash.  The accelerations accepted in roller coaster design are generally in the  4-6Gs (40–60 m s−2) range for positive vertical (pushing you into your seat), and 1.5-2Gs (15–20 m s−2) for the negative vertical (flying out of your seat as you crest a hill). This range safely ensures the majority of the population experiences no harmful side effects. Lateral accelerations are generally kept to a minimum by banking curves. The neck's inability to deal with high forces leads to lateral accelerations generally limited to under 1.8Gs. Sudden accelerations in the lateral plane result in a rough ride.

Despite safety measures, accidents can, and do, occur.  Regulations concerning accident reporting vary from one authority to another. Thus in the USA, California requires amusement parks to report any ride-related accident that requires an emergency room visit, while Florida exempts parks whose parent companies employ more than 1000 people from having to report any accidents at all. Rep. Ed Markey of Massachusetts has introduced legislation that would give oversight of rides to the Consumer Product Safety Commission (CPSC).

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." 

A similar report in 2005 linked roller coasters and other thrill rides with potentially triggering abnormal heart conditions that could lead to death.  Autopsies have shown that recent deaths at various Disney parks, Anheuser-Busch parks, and Six Flags parks were due to previously undetected heart ailments.

Statistically, roller coasters are very safe compared to other activities. The U.S. Consumer Product Safety Commission estimates that 134 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. 

Types

Roller coasters are divided into two main categories: steel roller coasters and wooden roller coasters. Steel coasters have tubular steel tracks, and compared to wooden coasters, they are typically known for offering a smoother ride and their ability to turn riders upside-down. Wooden coasters have flat steel tracks, and are typically renowned for producing "air time" through the use of negative G-forces when reaching the crest of some hill elements. Newer types of track, such as I-Box and Topper introduced by Rocky Mountain Construction, improve the ride experience on wooden coasters, lower maintenance costs, and add the ability to invert riders.

Modern roller coasters are constantly evolving to provide a variety of different experiences. More focus is being placed on the position of riders in relation to the overall experience. Traditionally, riders sit facing forward, but newer variations such as stand-up and flying models position the rider in different ways to change the experiences. A flying model, for example, is a suspended roller coaster where the riders lie facing forward and down with their chests and feet strapped in. Other ways of enhancing the experience involve removing the floor beneath passengers riding above the track, as featured in floorless roller coasters. Also new track elements – usually types of inversions – are often introduced to provide entirely new experiences. 

By train type

* 4th Dimension roller coaster
* Bobsled roller coaster
* Dive roller coaster
* Floorless roller coaster
* Flying roller coaster
* Inverted roller coaster
* Mine Train roller coaster
* Motorbike roller coaster
* Pipeline roller coaster
* Side friction roller coaster
* Spinning roller coaster
* Stand-up roller coaster
* Steeplechase roller coaster
* Suspended roller coaster
* Virginia Reel roller coaster
* Wing roller coaster

By track layout

* Boomerang roller coaster
* Corkscrew roller coaster
* Dual-tracked roller coaster
* Figure 8 roller coaster
* Out and Back roller coaster
* Shuttle roller coaster
* Terrain roller coaster
* Twister roller coaster
* Vertical Drop roller coaster
* Wild Mouse roller coaster

By mechanics

* Chain-lift/cable lift/Elevator lift/Ferris Wheel lift roller coaster
* Launched roller coaster
* Powered roller coaster

By height

Several height classifications have been used by parks and manufacturers for marketing their roller coasters. As a result, some classifications are not always agreed upon or defined consistently throughout the roller coaster industry.

One classification known as a kiddie coaster is a roller coaster specifically designed for younger riders including toddlers. Following World War II, parks began pushing for more of them to be built due to the height and age restrictions of standard designs. Companies like Philadelphia Toboggan Company (PTC) developed scaled-down versions of their larger models to accommodate the demand. These typically featured lift hills smaller than 25 ft, and still do today. The rise of kiddie coasters soon led to the development of "junior" models that had lift hills up to 45 ft. A notable example of a junior coaster is the Sea Dragon – the oldest operating roller coaster from PTC's legendary designer John Allen – which opened at Wyandot Lake in 1956 near Powell, Ohio. 

A hypercoaster (occasionally stylized as hyper coaster) is a type of roller coaster with a height or drop that ranges from 200 ft to 299 ft and completes a full circuit. The first roller coaster to be classified as a hyper coaster is Magnum XL-200 at Cedar Point designed by Arrow Dynamics. Since its debut, hyper coasters have become one of the most predominant types of roller coasters worldwide. Bolliger & Mabillard and Intamin are the leading manufacturers of this type.

A giga coaster is a type of roller coaster with a height or drop that ranges from 300 ft to 399 ft and completes a full circuit. The term was coined during a partnership between Cedar Point and Intamin on the construction of Millennium Force. The only other giga coaster built by the same company is Intimidator 305 at Kings Dominion.  Although Morgan and Bolliger & Mabillard have not used the term giga,  both have a roller coaster in this class.

A strata coaster is a type of roller coaster with a height or drop that is 400 ft or more and completes a full circuit. Only two strata coasters have been built, both of which utilize Intamin's hydraulically launched accelerator coaster design. The first was Top Thrill Dragster at Cedar Point, which opened in 2003 at a height of 420 ft. The second was Kingda Ka at Six Flags Great Adventure, which opened in 2005 at a height of 456 ft – also making it the tallest roller coaster in the world. Superman: Escape From Krypton at Six Flags Magic Mountain was the first to break the 400 ft barrier, but since it is a shuttle roller coaster that does not complete a full circuit and its drop is only 328 ft, some do not classify it as a strata roller coaster.

Major roller coaster manufacturers

* Allan Herschell Company (defunct)
* Arrow Dynamics (bought by S&S Power, renamed S&S Arrow then S&S Worldwide)
* Bolliger & Mabillard
* Bradley and Kaye (defunct)
* Chance Morgan (formerly D. H. Morgan Manufacturing)
* Custom Coasters International (defunct)
* Dinn Corporation (defunct)
* Dynamic Structures
* Fabbri Group
* Gerstlauer
* Giovanola (defunct)
* The Gravity Group
* Great Coasters International
* Intamin
* Mack Rides
* Maurer Söhne
* Philadelphia Toboggan Coasters
* Pinfari (defunct)
* Premier Rides
* Preston & Barbieri
* Rocky Mountain Construction
* S&S Worldwide
* Schwarzkopf (defunct)
* TOGO (defunct)
* Vekoma
* Zamperla
* Zierer

Gallery

File:Fahrenheit (Drop).jpg|Riding Fahrenheit, located at Hersheypark in Hershey, Pennsylvania.
File:PKDHypersonicDrop.jpg|Hypersonic XLC, the world's first production Thrust Air 2000 (now defunct)
File:Top Thrill Dragster (Cedar Point) 01.jpg|Top Thrill Dragster at Cedar Point is the first strata coaster ever built.
File:Rollercoaster expedition geforce holiday park germany.jpg|Riding Expedition GeForce at Holiday Park, Germany.
File:Cedar point raptor1.jpg|Raptor, a steel inverted coaster, is located at Cedar Point in Sandusky, Ohio.
File:Wooden roller coaster txgi.jpg|Texas Giant at Six Flags Over Texas before being refurbished into a hybrid steel-wood coaster.
File:Image-Lightning Racer at Hersheypark station.jpg|Lightning Racer at Hersheypark is a racing, dueling roller coaster made by GCI.
File:linnanrollerc.JPG|This all-wooden roller coaster, built in 1951, dominates the Linnanmäki amusement park in Helsinki, Finland.
File:Coney Island 2010 109.JPG|Coney Island Cyclone in Brooklyn, New York was built in 1927 and refurbished in 1975.
File:PKI-Son of Beast.jpg|Son of Beast in Kings Island was the only wooden coaster to have a vertical loop. The loop was removed in 2006, and the ride was SBNO from 2009 until its demolition in 2012.
File:Kennywood Jack Rabbit DSCN2786.JPG|Jack Rabbit at Kennywood Park outside of Pittsburgh, Pennsylvania was built in 1920.
File:Knoebels Phoenix.JPG|Phoenix, built in 1947, at Knoebles Grove in Elysburg, Pennsylvania. It was relocated from San Antonio's Playland Park in 1984.
File:AltonTowers-Oblivion.JPG|Oblivion at Alton Towers in Staffordshire, England.
File:Griffon (Busch Gardens Europe) 02.JPG|Griffon splashing down into a pool at Busch Gardens Williamsburg.
File:Great Bear Helix.jpg|Great Bear is the first steel inverted coaster in Pennsylvania, located at Hersheypark.
File:Behemoth (Canada's Wonderland) 06.jpg|Behemoth, at Canada's Wonderland, was the highest (230 ft) and fastest (77 mph) coaster in Canada before Leviathan opened.
File:Busch Gardens Tampa Bay - Montu.jpg|"Montu", a popular inverted roller coaster at Busch Gardens Tampa Bay
File:Black mamba first drop.jpg|Black Mamba at Phantasialand, Germany
File:Euromir.jpg|Euro-Mir, a spinning roller coaster at Europa-Park in Rust, Germany
File:Rollercoaster dragon khan universal port aventura spain.jpg|Dragon Khan at PortAventura in  Salou (Tarragona), Spain
File:Kennywood Thunderbolt DSCN2744.JPG| Thunderbolt at Kennywood outside of Pittsburgh, Pennsylvania was built in 1968.
File:Leviathan Reactions.jpg| Leviathan, also at Canada's Wonderland, is the current biggest coaster in Canada (306 ft, 148 km/h) and is also made by Bolliger & Mabillard. It is the second biggest coaster before Fury 325 at Carowinds over 300 ft made by B&M.
File:Kingda Ka.jpg|Kingda Ka is the world's tallest roller coaster and is the second strata coaster in the world after Top Thrill Dragster.
File:Ee-train.jpg|Expedition Everest, a roller coaster at Disney's Animal Kingdom in Walt Disney World
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 The roller coaster ride called Read it is located at Witch's Enchanted Park. 

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