Product Code Database
A monorail is a Rail transport in which the track consists of a single rail or beam. Colloquially, the term "monorail" is often used to describe any form of elevated rail or people mover. More accurately, the term refers to the style of track.The term "track" is used here for simplicity. Technically the monorail sits on or is suspended from a guideway containing a singular structure. There is an additional generally accepted rule that the support for the car must be narrower than the car. Monorail systems are most frequently implemented in large cities, airports, and theme parks.
Monorail vehicles often appear similar to light rail vehicles, and can be staffed or unstaffed. They can be individual rigid vehicles, articulated single units, or multiple units coupled into trains. Like other advanced rapid transit systems, monorails can be driven by linear induction motors; like conventional railways, vehicle bodies can be connected to the beam via , allowing curves to be negotiated.
Monorails are sometimes used in urban areas alongside conventional parallel railed metro systems. Mumbai Monorail serves alongside Mumbai Metro, while monorail lines are integrated with conventional rail rapid transit lines in Bangkok's MRT network.
As with other grade-separated transit systems, monorails avoid red lights, intersection turns, and traffic jams.Ryan, Phillip Monorails (All Aboard!)(2010) Surface-level trains, buses, automobiles, and pedestrians can collide each one with the other, while vehicles on dedicated, grade-separated rights-of-way such as monorails can collide only with other vehicles on the same system, with much fewer opportunities for collision. As with other elevated transit systems, monorail passengers receive sunlight and views.Schafer, Mike American Passenger Train (2001) Monorails can be quieter than diesel buses and trains. They obtain electricity from the track structure, whereas other modes of transit may use either third rail or overhead power lines and poles. Compared to the elevated train systems of New York, Chicago, and elsewhere, a monorail beamway casts a narrow shadow.Dorin, Patrick C. American Passenger Trains: WWII to Amtrak(2009)
Conversely, monorails can be more expensive than light-rail systems that do not include tunnels. In addition, monorails must either remain above ground or use larger tunnels than conventional rail systems, and they require complex track-switching equipment.
The Centennial Monorail was featured at the Centennial Exposition in Philadelphia in 1876. Based on its design the Bradford and Foster Brook Railway was built in 1877 and ran for one year from January 1878 until January 1879.
Around 1879 a "one-rail" system was proposed independently by Haddon and by Stringfellow, which used an inverted "V" rail (and thus shaped like "Λ" in cross-section). It was intended for military use, but was also seen to have civilian use as a "cheap railway." Similarly, one of the first systems put into practical use was that of French engineer Charles Lartigue, who built a line between Ballybunion and Listowel in Ireland, opened in 1888 and lasting 36 years, being closed in 1924 (due to damage from Ireland's Civil War). It used a load-bearing single rail and two lower, external rails for balance, the three carried on triangular supports. It was cheap to construct but tricky to operate. Possibly the first monorail locomotive was a 0-3-0 steam locomotive on this line. A high-speed monorail using the Lartigue system was proposed in 1901 between Liverpool and Manchester.
The Boynton Bicycle Railroad was a steam-powered monorail in Brooklyn on Long Island, New York. It ran on a single load-bearing rail at ground level, but with a wooden overhead stabilising rail engaged by a pair of horizontally opposed wheels. The railway operated for only two years beginning in 1890.
The Hotchkiss Bicycle Railroad was a monorail on which a matching pedal bicycle could be ridden. The first example was built between Smithville and Mount Holly, New Jersey, in 1892. It closed in 1897. Other examples were built in Norfolk from 1895 to 1909, Great Yarmouth, and Blackpool, UK from 1896.
In 1910, the Louis Brennan Gyro Monorail was considered for use to a coal mine in Alaska. In June 1920, the French Patent Office published FR 503782, by Henri Coanda, on a 'Transporteur Aérien' -Air Carrier. One of the first monorails planned in the United States was in New York City in the early 1930s, scrubbed for an elevated train system. "America's First Monorail Line Planned For New York." Popular Mechanics, November 1930, p. 71.
The first half of the 20th century saw many further proposed designs that either never left the drawing board or remained short-lived prototypes. One of the most interesting projects created on the layout was the ball-bearing train by Nikolai Grigorievich Yarmolchuk. This train moved on spherical wheels with electric motors embedded in them, which were located in semi-circular chutes under a wooden platform (in the full-scale project the trestle would have been concrete). A model train, built to 1/5 scale to test the vehicle concept, was capable of reaching speeds of up to 70 km/h. The full-scale project was expected to reach speeds of up to 300 km/h.
In 1956, the first monorail to operate in the US began test operations in Houston, Texas. "First U.S. Monorail Has Trial Run." Popular Mechanics, June 1956, p. 77. Disneyland in Anaheim, California, opened the United States' first daily operating monorail system in 1959. Later during this period, additional monorails were installed at Walt Disney World in Florida, Seattle, and in Japan. Monorails were promoted as futuristic technology with exhibition installations and amusement park purchases, as seen by the legacy systems in use today. However, monorails gained little foothold compared to conventional transport systems. In March 1972, Alejandro Goicoechea-Omar had patent DE1755198 published, on a 'Vertebrate Train', build as experimental track in Las Palmas de Gran Canaria, Spain. Niche private enterprise uses for monorails emerged, with the emergence of air travel and , with shuttle-type systems being built.
Modern mass transit monorail systems use developments of the ALWEG beam and tyre approach, with only two suspended types in large use. Monorail configurations have also been adopted by . Since the 2000s, with the rise of traffic congestion and urbanization, there has been a resurgence of interest in the technology for public transport with a number of cities, such as Malta and Istanbul, today investigating monorails as a possible mass transit solution.
In 2004, Chongqing Rail Transit in China adopted a unique ALWEG-based design with rolling stock that is much wider than most monorails, with capacity comparable to heavy rail. This is because Chongqing is criss-crossed by numerous hills, mountains and rivers, therefore tunneling is not feasible except in some cases (for example, lines 1 and 6) due to the extreme depth involved. Today it is the largest and busiest monorail system in the world.
In July 2009, two Walt Disney World monorails collided, killing one of the drivers and injuring seven passengers. The National Transportation Safety Board found the cause of the accident to be human error by both the driver and controller, contributed to by a lack of standard operating procedures.
São Paulo, Brazil, is building two high-capacity monorail lines as part of its public transportation network. Line 15 was partially opened in 2014, will be long when completed in 2022 and has a capacity of 40,000 pphpd using Bombardier Innovia Monorail trains. Line 17 will be long and is using the BYD Company SkyRail design. Other significant monorail systems are under construction such as two lines for the Cairo Monorail, two lines for the MRT (Bangkok) and the SkyRail Bahia in Brazil.
Current monorails are capable of more efficient switching than in the past. With suspended monorails, switching may be accomplished by moving flanges inside the beamway to shift trains to one line or another.
Straddle-beam monorails require that the beam moves for switching, which was an almost prohibitively ponderous procedure. Now the most common way of achieving this is to place a moving apparatus on top of a sturdy platform capable of bearing the weight of vehicles, beams and its own mechanism. Multiple-segmented beams move into place on rollers to smoothly align one beam with another to send the train in its desired direction, with the design originally developed by ALWEG capable of completing a switch in 12 seconds. Some of these beam turnouts are quite elaborate, capable of switching between several beams or simulating a railroad double-crossover. Vehicle specifications are generally not open to the public, as is standard for rolling stock built for public services.
An alternative to using a wye or other form of switch, is to use a turntable, where a car sits upon a section of track that can be reoriented to several different tracks. For example, this can be used to switch a car from being in a storage location, to being on the main line. The now-closed Sydney Monorail had a Transfer table at the depot, which allowed a train on the main line to be exchanged with another from the depot. There were about six lines in the depot, including one for maintenance.
Other developers include CRRC Qingdao Sifang, China Railway Science and Industry Group, Zhongtang Air Rail Technology, Woojin and SkyWay Group.
The Thunderbirds February 1966 episode "Brink of Disaster" is about the financing and building of a high speed driverless cross-country monorail project. Two of the Thunderbirds-crew find themselves trapped on board the a monorail train, and with no possibility of escape, when it is discovered it is speeding towards a stricken bridge.
The James Bond film franchise features monorails in three movies, all belonging to the villain. In You Only Live Twice (1967) there is a working ground level monorail inside the SPECTRE volcano base. During Live and Let Die (1973), a prop monorail is shown in the villain's lair on the fictional Caribbean island of San Monique. In the 1977 The Spy Who Loved Me there is working monorail on the villain's supertanker (submarine dock).
In 1987, Lego released a monorail among the Futuron Lego Space line. Despite being the most expensive Lego set of its time (due to being massive and including electrical elements), it was very popular, with Lego releasing a Lego Town themed monorail in 1990 and another Space monorail in 1994 among the Unitron line, as well as additional track. The monorail system was also prominent in the unreleased Seatron Space line and prototype Wild West sets. Its popularity has still endured over thirty years later, where Lego has paid homage in promotional sets and fans have manufactured compatible components.
The fourth season of the American animated television show The Simpsons features the episode "Marge vs. the Monorail", in which the town of Springfield impulsively purchases a faulty monorail from a at a wildly inflated price. The Monorail Society, an organization with 14,000 members worldwide, has blamed the episode for sullying the reputation of monorails, to which Simpsons creator Matt Groening responded "That's a by-product of our viciousness...Monorails are great, so it makes me sad, but at the same time if something's going to happen in The Simpsons, it's going to go wrong, right?"
The 2005 feature film Batman Begins features a monorail, constructed by Bruce Wayne's father through Gotham City, that is part of the climax of the film. The monorail is also included in the spin-off video game.
Blaine the Mono is a train featured in Stephen King's The Dark Tower series of books and first appears in .
Monorails have also appeared in a number of other video games including Transport Tycoon, Japanese Rail Sim 3D: Monorail Trip to Okinawa by Sonic Powered, , Cities in Motion 2, in the Mass transit expansion pack of 2017, Planet Zoo and a rideable elevated monorail system in the 2020 video game Cyberpunk 2077.
This high-cost perception was challenged most notably in 1963 when the ALWEG consortium proposed to finance the construction of a major system in Los Angeles County, California, in return for the right of operation. This was turned down by the Los Angeles County Board of Supervisors under pressure from Standard Oil of California and General Motors (which were strong advocates for automobile dependency), and the later proposed subway system faced criticism by famed author Ray Bradbury as it had yet to reach the scale of the proposed monorail.
Several monorails initially conceived as transport systems survive on revenues generated from tourism, benefiting from the unique views offered from the largely elevated installations.
Monorails in Central Java were used to transport timber from the forests of Central Java located in the mountains to the rivers. In 1908 and 1909, the forester H. J. L. Beck built a manually operated monorail of limited but sufficient capacity for the transport of small timber and firewood in the Northern Surabaya forest district. In later years, this idea was further developed by L. A. van de Ven, who was a forester in the Grobogan forest district around 1908–1910.Ch. S. Lugt: Het boschbeheer in Nederlandsch-Indië. 1933, S. 75–76. Zitiert in: Rob van de Ven Renardel de Lavalette: De Monorail van Grobogan. Dankbetuiging. Bataviaasch Nieuwsblad, 16 July 1913. Monorails were built by plantation operators and wood processing companies throughout the mountains of Central Java.Augusta de Wit: Een bevloeiingswerk. In: Natuur en menschen in Indië, 1921, page 125. First published in Nieuwe Rotterdamsche Courant, Avondblad A, 30 November 1911. Referenced in: Rob van de Ven Renardel de Lavalette: De Monorail van Grobogan. In 1919/1920, however, the hand-operated monorails gradually disappeared and were replaced by narrow-gauge railways with steam locomotives as forest utilization changed. Pernah ada Monorel hutan (forestry monorail) di Jawa. Ziarah Spoor, 13 December 2012.
In the 1920s the Port of Hamburg used a petrol powered, suspended monorail to transport luggage and freight from ocean-going vessels to a passenger depot.
In the northern Mojave Desert, the Epsom Salts Monorail was built in 1924. It ran for 28 miles from a connection on the Trona Railway, eastward to harvest epsomite deposits in the Owlshead Mountains. This Lartigue type monorail achieved of up to ten percent. It only operated until June 1926, when the mineral deposits become uneconomic, and was dismantled for scrap in the late 1930s. (Republished in Trains and Travel, October 1951)
In the Soviet Union the Lyskovsky monorail in the Nizhny Novgorod region was designed by the engineer of the timber industry Ivan Gorodtsov. A Lartigue type line of about long was opened in November 1934 to connect the village of Selskaya Maza with the villages of Bakaldy and Yaloksha to carry timber. Following this example a separate cargo-and-passenger monorail was built from the town of Bor to the village of Zavrazhnoe, where forest and peat were exploited. The Lyskovsky monorail stopped operating in 1949.
The British firm Road Machines (Drayton) Ltd developed a modular-track ground-level monorail system with a high rail segments, long, running between support plates. The first system was sold in 1949 and it was used in industrial, construction and agricultural applications around the world. The company ceased trading in 1967. The system was adapted for the use in the 1967 James Bond film You Only Live Twice. An example of the system exists at the Amberley Museum & Heritage Centre in Britain.
In the mining industry suspended monorails have been used because of their ability to descend and climb steep tunnels using rack and pinion drive. This significantly reduces cost and length of tunnels, by up to 60% in some cases, which otherwise must be at gentle gradients to suit road vehicles or conventional railways.
A suspended monorail capable of carrying fully loaded 20' and 40' containers has been under construction since 2020 at the Port of Qingdao, the first phase of which was put into operation in 2021.
|
|
 Bataviaasch Nieuwsblad, 16-7-1913.jpg/){kind=link}