Intamin Explained

Intamin
Foundation:	1967^[1]
Founder:	Robert Spieldiener Reinhold Spieldiener Alfons Saiko
Location City:	Schaan
Location Country:	Liechtenstein
Locations:	8
Area Served:	Worldwide
Key People:	Patrick Spieldiener (CEO)
Industry:	Manufacturing

Intamin Amusement Rides is a design and manufacturing company in Schaan, Liechtenstein, best-known for designing and constructing thrill rides and roller coasters at dozens of international theme parks, amusement parks and other establishments. The Intamin brand name is a syllabic abbreviation for "international amusement installations". The company has corporate offices across the world, including three in Europe, three in Asia, and two in the United States.

Primarily, Intamin is known for their roller coaster portfolio. Through working closely with their clients, Intamin addresses each project's unique prerequisites; in addition to the basic type of attraction desired, the company assesses the client's property, the surrounding terrain and works within the confines of local regulations, such as building height restrictions, and more. Their roller coaster models range from children's "kiddie" coasters and family-style mine trains to some of the tallest and fastest steel roller coasters in the world. Intamin has also manufactured pre-fabricated wooden roller coaster models, a concept which facilitates ease of construction and provides a distinct ride experience. Prefabricated wooden coasters are computer-designed with pre-measured lumber; most traditional wooden coasters are built using hand-measured, manually-cut lumber.

Among the many unique ride concepts and patents to their name, Intamin designed and constructed the first-ever river rapids ride (known as Thunder River), and marketed the first freefall ride (developed by Giovanola) and drop tower.

Beyond roller coasters, Intamin is well-known for their design and construction of vertical rides and drop towers, water rides (including log flumes and river rapids), unique water coasters, immersive dark rides, large swing rides, and different observation tower attractions. With such an extensive portfolio, Intamin is known as one of the top most-innovative and sought-after amusement ride firms in operation today. The company has installed scores of roller coasters and other rides in many countries and territories, including the United States, Canada, the United Kingdom, Australia, México, Japan, China, Vietnam, Germany, France, Italy, Spain, United Arab Emirates, Turkey, Finland, South Korea, Sweden, Norway, Denmark, Guatemala and Poland, among others.

Products and technologies

Intamin's product range spans two broad categories: rides and transportation.

Amusement rides

Roller coasters

Intamin created the first hydraulic launch system (known as the Accelerator Coaster), which catapults roller coaster trains from standstill to speeds upwards of in a few seconds before climbing to immense heights. Kingda Ka at Six Flags Great Adventure, for instance, is North America's tallest and fastest coaster, launching riders from 0–128mi/h in 3.5 seconds.^[2]

Intamin is also known for its massive Mega and Giga Coasters, Intamin's terms for a hypercoaster. Intamin Giga Coasters (roller coasters between 300 and 399ft) and Mega Coasters (Intamin’s model name for any roller coaster between 100 and 299ft) currently occupy three of the top five Golden Ticket Awards with perennial favorites Millennium Force, Superman the Ride and Expedition GeForce.^[3]

Intamin uses computerized and industrialized engineering and manufacturing methods for its wooden coasters, rather than traditional on-site fabrication.^[4] Coasters such as Colossos at Heide Park, Balder at Liseberg and El Toro at Six Flags Great Adventure utilized this manufacturing technique. Unlike other traditional wood coasters, these rides use prefabricated track sections made of a high-strength wooden laminate that can be secured on-site when the superstructure is completed. This design enables the coaster to reach speeds and navigate course elements smoothly, like a steel roller coaster, while retaining the look and some of the traditional feel of common wooden coasters.^[4]

Another development by Intamin is the ZacSpin, a type of 4th Dimension roller coaster first seen in 2007. Kirnu at Linnanmäki in Finland was the first ZacSpin in the world and opened on April 27, 2007.^[5] It has individual cars, each with 8 seats, arranged in two pods coming off the sides of the car, each with 2 seats facing forward and two facing backward. This car is either lifted to the highest point by a conventional chain lift, or propelled around the course at a constant speed by a Linear Motor system.

The company is known for being the original home to Bolliger & Mabillard (B&M). The two engineers worked for Giovanola who in turn were frequently contracted by Intamin for their early stand-up roller coasters (Giovanola eventually started producing roller coasters independently). B&M broke away from Giovanola to form their own company which now supplies roller coasters as well. Similarities between the two companies are often apparent, such as the style of track used by B&M, which was used in a number of early Giovanola installations which were contracted by Intamin.

Ferris wheels

Intamin brokered a number of rides that were manufactured by Waagner-Biro. These included a series of rides for Marriott Corporation, each comprising a vertical column supporting multiple horizontal arms, with each arm supporting a Ferris wheel. The first was Giant Wheel which operated at Hersheypark in Hershey, Pennsylvania, from 1973 until 2004. Similar Intamin supplied Waagner-Biro wheels included Zodiac (Kings Island, Mason, Ohio) and Scorpion (Parque de la Ciudad, Buenos Aires, Argentina). All are now defunct.

Sky Whirl, the world's first triple Ferris wheel, which debuted at both Marriott's Great America parks (now Six Flags Great America, Gurnee, Illinois, and California's Great America, Santa Clara) in 1976, was also manufactured by Waagner-Biro and brokered by Intamin. Also known as a triple Ferris wheel,^[6] Triple Giant Wheel,^[7] or Triple Tree Wheel, it was 33m (108feet) in height.^[8] The Santa Clara ride, renamed Triple Wheel in post-Marriott years, closed on 1 September 1997. The Gurnee ride closed in 2000.^[9]

The Orlando Eye, which opened in April 2015, was designed and built by Intamin.^[10]

Transportation

Outside the amusement realm, Intamin supplies monorail transportation systems which are used in both public transport networks and at tourist attractions across the world. Intamin was responsible for the design and building of the Moscow Monorail (Russian: Московская Монорельсовая Транспортная Система (ММТС)), which is long and is located in the North-Eastern Administrative Okrug of Moscow, Russia, running from the Timiryazevskaya metro station to Sergeya Eisensteina street. Planning of the monorail started in 1998. It has six stations.

In 2016, two monorails using Intamin equipment were opened, the 5.2km (03.2miles) Ashgabat Monorail in Turkmenistan^[11] and the 1.1km (00.7miles) Calabar Monorail in the Cross River State, Nigeria, which connects the Calabar International Convention Centre to the Tinapa Resort.^[12]

In 2020, the Marconi Express Monorail opened as a shuttle between the Bologna Guglielmo Marconi Airport and the Bologna Centrale railway station.

Intamin has also constructed monorails at amusement parks Xi'an and Ningbo in China and the Asia Park Monorail in Da Nang in Vietnam.^[13]

Notable Intamin rides

See also: List of Intamin rides.

Year	Accomplishment	Ride	Location	Notes
1981	First wooden coaster built by Intamin		Six Flags Great America	When opened it featured the longest drop in the world and fastest speed on a wooden coaster.
1985	First (and only) Spacediver coaster		Six Flags Great America, Six Flags Over Georgia, Six Flags Magic Mountain	Opened in '85 at Great America, was relocated to Over Georgia in '88, then to Magic Mountain and opened there as Flashback in '92; demolished and scrapped in mid-December 2007 after sitting idle since 2003 First coaster to feature four-abreast seating
1994	First and only stand up coaster to feature a Zero G Roll			The ride closed in November 2023 to be converted to a sit-down coaster
1997	First coaster to go above 300-1NaN-1 First coaster to go 100mi/h			Not a complete circuit; the train does not reach the top of the vertical spike
1997	First coaster with a structure to reach beyond 400-1NaN-1			Not a complete circuit; the train does not reach the top of the vertical spike; formerly Superman: the Escape
1998	First LIM-launched inverted coaster First Impulse shuttle coaster			Closed in 2010 and subsequently removed
1998	First complete-circuit, LIM-launched inverted coaster			Fastest inverted coaster at 70-1NaN-1 when first opened Closed in 2018
2000	First Giga Coaster (over 300 ft) First coaster to drop 300-1NaN-1			First complete circuit coaster to stand over 300 ft (310 ft) Drop is exactly 300-1NaN-1
2000	First LIM-launched Twisted Impulse coaster			Previously operated at Geauga Lake as Superman: Ultimate Escape and Steel Venom
2000	First Stand Up Drop Tower			5 Towers with 3 stand up towers & 2 sit down towers Tower 5 was modified in 2002 to feature the World's First Stand Up Floorless drop tower The ride was closed in 2022
2001	First coaster to utilize a LIM launch hill			Has a magnetic launch followed by a magnetic non-cable/chain lift hill (this, along with scream tunnels, was done to reduce noise) Currently the longest coaster with inversions
2001	First wooden coaster with prefabricated track
2002	First coaster to do 10 inversions			Has 10 inversions - in order: 1 Loop, 1 Cobra Roll (counts as 2), 2 Corkscrews, and 5 heartline rolls
2002	First hydraulic catapult launch coaster		Knott's Berry Farm	Accelerates from 0 to 82 miles per hour, covering 157 feet of launch track, in just 2.3 seconds.
2003	First Strata coaster (over 400 ft)			Tallest and fastest coaster in the world when opened at 4200NaN0 and 120-1NaN-1
2004	First accelerator coaster to feature inversions			Reaches a height of 150 ft and catapults riders from 0 to 72 mph in 2 seconds Features a top hat and three inversions
2005	World's tallest coaster (2005–present); was world's fastest coaster (2005–2010)			456 feet high; launch speed 1280NaN0
2007	First 4th Dimension design ZacSpin Coaster by Intamin First Intamin coaster to include curved hydraulic chain lift hill			First compact 4-D coaster in the world Features redesigned restraints (lap bar with safety belt shoulder harness system) and non-friction magnetic brakes
2007	Intamin's first Wing Rider^[14] coaster			Accelerates from 0 to 135km/h in 3.5 seconds Was fastest coaster in Europe until 2017.
2008	At 97 degrees, steepest drop of all Intamin coasters			Ascends chain lift hill at a 90-degree angle Features a 121-foot Norwegian loop and six inversions
2008	Record holder at the time for the steepest wooden coaster in the world Currently the highest, fastest, longest coaster in South Korea			Maximum 77 degrees Height 183.75 ft (56.01m) Top speed 64.6 mph (104 km/h) Length 5383.10 ft (1641m) 12 airtime hills
2010	World's first freefall drop coaster			Horizontal track falls vertically down in the crypt Train is launched into a backward helix after drop.
2010	Current record holder for the world's fastest coaster				Top speed 1500NaN0
2011	First ZacSpin built in the U.S.				Closed in 2017, subsequently relocated to La Ronde, scheduled to open as Vipère for the 2020 season. The project was eventually scrapped in 2022.
2014	First Special Effects Coaster/Dark Ride Hybrid
2014	First Drop Tower to tilt riders 90 degrees toward the ground				Currently North America's tallest freestanding drop tower Tilts rider face down and drops them at speeds of 60mph
2016	Fastest multi-launch coaster (forward only)			Multi-launch coaster Held three world records at opening: Fastest multi-launch coaster, longest multi-launch coaster without inversions, greatest number of intersecting track points at 58 .^[15]
2016	Fastest multi-launch coaster (bi-directional)	Soaring with Dragon	Hefei Wanda Theme Park	Fastest multi-launch coaster at 77.7 mph (train is launched three times — forward, backward and forward again).
2017	Fastest LSM-launch coaster			Currently fastest LSM-launched coaster in the world.
2019	Most LSM-Launches on a rollercoaster	Hagrid's Magical Creatures Motorbike Adventure	Hogsmeade at Universal's Islands of Adventure	When it opened, it was the worlds most expensive coaster at a whopping $300 Million It features 7 launches on the ride with a max speed of 50 mph
2021	First single-rail roller coaster for Intamin.	Big Dipper		Hot Racer model^[16] ^[17]

Incidents

See also: Amusement park accidents. Intamin has been in the news for a number of safety-related incidents.

• In 1984, three passengers riding The Edge at Six Flags Great America were injured and briefly hospitalized. The ride experienced a malfunction that caused it to fall backward down the wrong shaft.^[18]
• On June 9, 1991, 32-year-old Candy Taylor of Toledo, Ohio, fell to her death from Flight Commander, an Intamin Flight Trainer, located at Kings Island. Investigators determined that a design flaw in the seat divider could allow a rider to slide into an unoccupied seat and become free from the restraint. A coroner's report later revealed that the victim had a blood-alcohol level of 0.30 which may have also contributed. Speculation suggests the rider lost consciousness during the ride and slid out from the restraints.^{[19] [20]}
• On May 16, 1999, a 365lb guest was unable to close his lap bar on Ride of Steel at Six Flags Darien Lake. As a result, he was ejected, fell approximately 9 feet as the ride went over a camel hump hill, and suffered serious injuries. He sued the park and the ride manufacturer for negligence and was awarded US$3.95 million.^[21]
• In August 1999, a 12-year-old mentally disabled boy fell from the 207-foot (63 m) high, at California's Great America, and died. The victim's family claimed his harness was not locked properly. An investigation was inconclusive and no charges were filed.^{[22] [23]}
• In September 2001, a 40-year-old woman fell from Perilous Plunge (Knott's Berry Farm) into the water, was hit by the boat, and died. An investigation showed that the 300lb woman had loosened the safety restraints, so she could fit more comfortably into the ride.^[24]
• On April 16, 2004, a 16-year-old girl from Pontypool was killed after falling approximately 30 m (100 ft) into shallow water from the top of Hydro (now called Drenched) at Oakwood Leisure Park, Narberth, Pembrokeshire, United Kingdom.^[25] During a lawsuit brought by the victim's family against Oakwood, a jury returned a narrative verdict stating that the victim had fallen out due to being improperly restrained.^[26]
• The second incident of 2004 was on one of Intamin's mega coasters,, at Six Flags New England in Massachusetts. The ride, again with lap bar restraints, was dispatched with a rider who had cerebral palsy in the front seat; this passenger subsequently died after being ejected from his seat. According to an investigation,^[27] the ride operators were primarily to blame, for not ensuring the rider was properly secured. Intamin was also partially blamed, as the ride's safety system allowed the train to be dispatched without all of the restraints properly secured.
• The third incident of 2004 happened on July 14 and involved one of Intamin's launched stratacoasters. Four people were injured while riding on Cedar Point's Top Thrill Dragster. The riders were struck by metal debris that sheared off from the coaster's launch cable; during the initial launch, the train accelerates from 0 to in 4 seconds, before climbing up the foot vertical structure and back down again. The majority of guests waiting in the queue line would be standing no more than 10 to 15 feet from the track, at closest range. They were treated at the park's first aid station. Two were further treated at Firelands Regional Medical Center.^[28]
• In June 2007, a 13-year-old girl lost both feet at the ankles on Superman: Tower of Power, at Six Flags Kentucky Kingdom, when a ride malfunction and improper maintenance caused a cable to snap.^[29] She was brought to the hospital in critical condition,^[30] but survived, with doctors being able to re-attach her right foot. The park was later fined $1,000 for not properly maintaining the ride; an undisclosed settlement was later reached with Six Flags, which will provide for her for the remainder of her life.^[31]
• On September 16, 2009, two guests were injured when a cable snapped on Xcelerator at Knott's Berry Farm. The train launches riders from 0 to 80 miles per hour in a matter of seconds, ascends a vertical top-hat, and descends down the other side. The 12-year-old victim had lacerations on his leg, while the adult victim complained of back injuries.^[32]
• On April 29, 2010, a ride train on Expedition GeForce partially derailed from the track, fully occupied with passengers. Riders were stranded 20m in the air, with eight of them complaining of nausea and bruising.^[33]
• On July 8, 2011, a 29-year-old guest was killed when he was ejected from Superman: Ride of Steel. The rider, an Iraq War veteran whose legs had been amputated, was on the front row of the roller coaster when he was thrown from the train during the course of the ride. Park officials stated that the ride was in proper mechanical order and that the various safety restraints were also working normally at the time of the incident, but that the attraction would remain closed pending an investigation. It was determined that ride operators at the time should not have permitted the man to get on the ride, due to his status as a double amputee.^[34]
• On February 24, 2012, a 14-year-old girl died in an accident at Hopi Hari, Vinhedo, São Paulo State, Brazil. She fell from the La Tour Eiffel drop tower ride, suffered cranial trauma, and died on the way to hospital. Initial investigations suggested the possibility of mechanical failure in a restraint latch.^[35]
• On July 24, 2012, the launch cable of the accelerator coaster Rita at Alton Towers, Staffordshire, UK, snapped during a morning test run. There were no passengers aboard at the time and no injuries occurred.^[36]
• On July 19, 2013, a boat on the Shoot the Rapids log flume (at Cedar Point) rolled back down the ride's lift hill and flipped over, injuring seven, and was said to leave them stranded under water for a few minutes before guests and park employees could get them out. Six were cleared by park medical staff, and one was examined at a local hospital before being released. The ride closed during the investigation. Cedar Point reopened the ride in May 2014 but it would close in 2015.^[37]
• On July 7, 2014, a teenager was killed after his harness sprung open on Inferno, a ZacSpin fourth-dimension roller coaster at Terra Mítica in Benidorm, Spain.^[38]
• On May 9, 2017, an 11-year-old girl, Evha Jannath, died from her injuries after she fell from the Splash Canyon ride and into the water at Drayton Manor Theme Park in England. The water ride has remained closed for the foreseeable future, following the HSE safety examination.^[39]
• On July 3, 2021, an 11-year-old boy died and five others were injured on the Raging River at Adventureland Park in Altoona, Iowa when their raft flipped over. The raft was found to be under inflated by the park staff, and the ride's emergency drainage system failed due to lack of maintenance. ^{[40] [41]}

• On August 15, 2021, a female guest was seriously injured while standing in line at Cedar Point when a metal object dislodged from Top Thrill Dragster and struck her in the head.^[42] The ride was shut down following the incident, and remained standing but not operating until Cedar Point announced its retirement in 2022, with plans of an updated ride experience.^[43]
• On April 7, 2023, two female guests were injured at Futuroscope, France when a lithium battery on a train car caught fire. The guests suffered burns and were hospitalised. Park employees exposed to lithium fumes were treated on premises. The ride has been closed since.^[44]

External links

• • 2022 Company Brochure

Notes and References

1. Web site: Our History | Intamin | Rollercoaster Supplier & Amusement Ride Manufacturer . 2017-06-12 . 2019-05-13 . https://web.archive.org/web/20190513190555/https://www.intaminworldwide.com/our-history/ . dead .
2. Web site: World Records . 2024-05-24 . Intamin Amusement Rides . en-US.
3. Cedar Point welcomes 2016 Golden Ticket Awards. September 2016. Amusement Today. September 11, 2016.
4. Pan . Phil . 2003 . Colossos: Can a coaster be too good for itself . RollerCoaster! Magazine . 24. 3 . 24 . American Coaster Enthusiasts . Mission, Kansas . 0896-7261.
5. Kirnu. Linnanmäki (Helsinki, Uusimaa, Finland). 3613. December 26, 2018.
6. http://www.freethemepark.com/great-america-tickets.php Need Six Flags Great America Tickets?
7. Web site: Theme Park Timelines . dead . https://web.archive.org/web/20150118163229/http://timelines.home.insightbb.com/sfgam_years.htm . 2015-01-18 .
8. http://www.gurnee.il.us/zoning_board/zba_minutes/10-25-00.html Zoning Board Minutes - 10-25-00
9. Web site: SKY WHIRL at Marriott's GREAT AMERICA parks. 24 March 2018.
10. http://www.baynews9.com/content/news/baynews9/on-the-town/article.html/content/news/articles/cfn/2014/4/15/eye_rise_constructio.htmlI-Drive 360: Construction continues on the Orlando Eye
11. Web site: - YouTube. YouTube.
12. News: Buhari to inaugurate multi-billion Naira Calabar monorail . 2 July 2021 . Vanguard . 20 August 2016.
13. Web site: First-ever elevated monorail launched in Da Nang . vietnam.net . 2 July 2021.
14. Web site: Wing Rider Coaster. 2014-01-05. https://web.archive.org/web/20130920180628/http://www.intaminworldwide.com/amusement/RollerCoasters/Wing+Rider+Coaster/tabid/138/ProductNumber/Wing+Rider+Coaster/language/de-DE/Default.aspx. 2013-09-20. dead.
15. Web site: Roller Coaster Search Results, Element=LSM launch, sorted by speed. rcdb.com. December 1, 2018.
16. News: 'Big Dipper' to return as Sydney's Luna Park gets $30 million overhaul. 24 November 2020. Gorrey. Megan. The Sydney Morning Herald. Nine Entertainment Co.. https://web.archive.org/web/20201124023751/https://www.smh.com.au/national/nsw/big-dipper-to-return-as-sydney-s-luna-park-gets-30-million-overhaul-20201124-p56he1.html. 24 November 2020. live.
17. Web site: Big Dipper – Luna Park. Marden. Duane. Roller Coaster DataBase. https://web.archive.org/web/20201124204855/https://rcdb.com/18808.htm. 24 November 2020. live. 25 November 2020.
18. News: EVOLUTION OF CALIFORNIA'S AMUSEMENT RIDES SAFETY LAWS. California Research Bureau, California State Library. 1997-08-01. 2006-12-21.
19. News: DESPITE RECENT DEATHS, PARKS SAY RIDES ARE SAFE . Deseret News . 1991-08-06 . June 3, 2011.
20. Web site: Ride-Related Fatalities . Emerson Associates. 2006-10-03 . June 3, 2011.
21. News: Theme-park patron ejected from roller coaster . 2004-03-12 . 2007-10-15 . dead . https://web.archive.org/web/20070928135146/http://www.verdictsearch.com/jv3_news/newsletter/nat/052604/3.jsp . 2007-09-28 .
22. News: Courier-Journal. 23 June 2007. Thrill ride lawsuits. 4 November 2011.
23. Web site: Drop Zone death: no charges, no explanation. 5 November 1999. RideAccidents.com. 4 December 2011.
24. Web site: Ergonomics and a Deadly Ride on the "Perilous Plunge". https://web.archive.org/web/20020308054153/http://www.ergoweb.com/news/detail.cfm?id=431. dead. 2002-03-08. 2001-11-06. 2007-04-05.
25. News: Girl dies in 100ft rollercoaster fall. BBC Wales News. 2004-04-16. 2007-08-29.
26. News: Family unhappy after ride inquest. BBC Wales News. 2006-05-19. 2007-08-29.
27. Web site: Coaster riders question safety steps.
28. News: WTOL-TV. July 13, 2004. Riders Injured on Top Thrill Dragster. July 31, 2006. https://web.archive.org/web/20071225063550/http://www.wtol.com/Global/story.asp?S=2033374. December 25, 2007. dead.
29. Web site: admin . 2008-04-14 . Deposition: Maintenance Guide Ignored on Ride that Injured Kentucky Teen . 2023-05-08 . Insurance Journal . en-US.
30. Web site: Teen's feet severed while on thrill ride - US news - Life - NBC News. NBC News.
31. Web site: Aftermath of a Horrific Amusement Park Accident. Gordon Gibb. 14 March 2011. lawyersandsettlements.com. 24 December 2012.
32. News: Caught on Tape: Coaster Attacks Two at Knott's Berry Farm. NBC Los Angeles. Scott Weber. 2009-09-18. 2009-09-18.
33. Web site: FULL STEAM OUT OF THE TRACK POPPED: AGONY IN THE ROLLER COASTER. Bild.de. 29 April 2010.
34. Web site: Iraq War vet dies on Darien Lake Rollercoaster. https://archive.today/20120716123250/http://www.9wsyr.com/news/local/story/Iraq-War-vet-dies-on-Darien-Lake-Rollercoaster/jM-zd3jWt0yhuwkx4Y1i4A.cspx. dead. 2012-07-16. 9WSYR.com. 2011-07-08. 2011-07-09.
35. Web site: Adolescente morre após acidente em parque de diversões no interior de SP. 24 February 2012. 2012-02-24.
36. Web site: Rita Launch Cable Snaps -> COASTER-net.com: Amusement Park and Roller Coaster News, Information, Photographs, & more! . dead . https://web.archive.org/web/20120731062501/http://www.coaster-net.com/news/1831-rita-launch-cable-snaps/ . 2012-07-31 .
37. Web site: Person Released From Hospital After Cedar Point Ride Malfunction. Kara Sutyak. fox8.com. Local TV, LLC. July 19, 2013. July 20, 2013.
38. Web site: Teenager killed after being thrown from roller-coaster called Hell at Benidorm theme park. Gerard Couzens. 8 July 2014. mirror.
39. News: Girl, 11, dies after Drayton Manor theme park fall . BBC.
40. Web site: Parents speak out after 11-year-old son killed at amusement park: 'It is a nightmare'. 2021-07-07. www.msn.com.
41. Web site: Thompson . Spencer . 2021-07-21 . Lack of Maintenance and Disregard for Industry-Recommended Safety Procedures May Have Contributed… . 2023-05-09 . Medium . en.
42. Web site: Guest struck by metal piece that fell off roller coaster at Cedar Point . 2023-05-08 . Akron Beacon Journal . en-US.
43. Web site: Cedar Point permanently closing Top Thrill Dragster, world's second-tallest roller coaster . 2023-05-08 . www.cbsnews.com . en-US.
44. Web site: Attraction Objectif Mars prend feu et blesse deux femmes . 2023-05-23 . twitter . fr-FR.