Wikipedia

L0 Series

TheL0 Series(Japanese:L(エル)0(ゼロ)Hệ(けい),Hepburn:Eru-zero-kei,"L zero series" )[3]is a high-speedmaglevtrain which theCentral Japan Railway Company(JR Central) has been developing and testing. JR Central plans to use the L0 series on theChūō Shinkansenrailway line betweenTokyoandOsaka,which is under construction.

L0 Series
A test run of the Improved L0 Series, August 2020
ManufacturerMitsubishi Heavy Industries,Nippon Sharyo,Hitachi Rail
Constructed2011–
Entered service2011
2020 (improved)
2027 (passenger service)
Number built14 vehicles
Number in service12 vehicles (1 set)
FormationTest:5–12 cars
Operation:16 cars
CapacityEnd cars: 24
Intermediate cars: 68
OperatorsJR Central
Lines servedCurrent:Yamanashi test track
Future:Chūō Shinkansen
Specifications
Train length299 m (981 ft 0 in) (12-car formation)
Car length28 m (91 ft 10 in) (end cars)
24.3 m (79 ft 9 in) (intermediate cars)
Width2.9 m (9 ft 6 in)[1]
Height3.1 m (10 ft 2 in)[1]
Doors2 × 1 per car
Maximum speedDesign:550 km/h (342 mph)
Record:603 km/h (375 mph)
Operational:500 km/h (311 mph)
Power supplyL0 series:gas turbine-electric[2]
Improved L0 series:unknown
Electric system(s)33 kV AC
Current collector(s)L0 series:none
Improved L0 series:induction(wireless power transfer)
Track gaugeSCMaglevguideway

The L0 series uses the Japanese-designedSCMaglevsystem.Mitsubishi Heavy IndustriesandNippon Sharyo,a subsidiary of JR Central, are building fourteen pre-production vehicles.[4]

A seven-car train set aland speed record for rail vehiclesof 603 km/h (375 mph) on 21 April 2015.[5]The trains run at a maximum speed of 500 km/h (311 mph),[6]offering journey times of 40 minutes between Tokyo (Shinagawa Station) andNagoya,and 1 hour 7 minutes betweenTokyoandOsaka.[7]

Specifications

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The end cars of L0 series trainsets are 28 meters (92 ft) long and carry 24 passengers. The nose extends 15 meters (49 ft) for better aerodynamics and reduced noise in tunnels.[7][8][9]Intermediate cars are 24.3 meters (80 ft) long and carry 68 passengers each; the train is 299 m (981 ft) long and holds as many as 728 passengers. Each row is four seats wide, one fewer per row than on JR CentralShinkansentrains. The cars are more box-shaped than earlier models, creating more interior space.[10]Cars are painted white and blue. During normal operation, the train operates at a maximum speed of 500 km/h (310 mph).[6]

The train does not require a driver, but has a camera at the front of both end cars in order to allow for remote operation, in case the automated systems fail. The camera is more apparent on the revised end cars; it was introduced in 2020. It moved to a higher position on the car and increased in size.[2]

The superconducting magnets in the bogies are built byToshibaandMitsubishi Electric.The cars are built by Nippon Sharyo with Mitsubishi Heavy Industries having built some in the past. Mitsubishi Heavy Industries stopped producing cars in 2017 after car manufacturing cost disagreements with JR Central and theMitsubishi SpaceJet's spiralling development costs.[11]The bogies are arranged in aJacobs bogieconfiguration.

Planned operations

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Chuo Shinkansen

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Main article:Chuo Shinkansen

Construction on theChuo Shinkansenline on which the train would run began in December 2014. The first section to Nagoya is expected to be completed in 2027. That section will be approximately 85% tunnels with an estimated cost of ¥5.5trillion (US$46.5billion). The relatively high cost is in large part due to the many tunnels being constructed.[12][13]

The complete line to Osaka is estimated to cost ¥9trillion ($74.7billion), and was expected to be completed by 2045, after an eight-year pause in construction to recuperate costs. However, after receiving a ¥3trillion ($28billion) loan from the Japanese government,JR Centralmoved the project forward. It now expects to be able to open the full line as early as 2037, with construction beginning immediately after completion of the Tokyo–Nagoya section.[14]

United States

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Main article:Northeast Maglev

A route fromWashington, D.C.toBaltimore,eventually extending toNew York Cityhas received support in the United States. JR Central chairman Yoshiyuki Kasai spoke with U.S. PresidentBarack Obamaabout the L0 series during Prime MinisterShinzo Abe's 28 April 2015 visit.

In August 2017, development partnerMitsubishiannounced that talks had "stalled" because of "a lack of clarity on the Trump administration's stance on high-speed rail".[15][16]In March 2019, Northeast Maglev project director David Henley said in an interview that they planned to have aRecord of Decisionfor the D.C.–Baltimore section by August 2020. Construction was to begin later that year or in early 2021. According to Henley, operations will begin in 2027–28, allowing for a construction period of 7 years.[17]

History

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The first L0 series undergoing test-running in August 2014

L0 series

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The first L0 series vehicle was delivered to theYamanashi Maglev Test Lineand unveiled in November 2012.[18]The first five vehicles were linked up and placed on the guideway in June 2013.[10]

The first five-car train began test-running at the 42.8 km (26.6 mi) Yamanashi Maglev Test Line in June 2013, following completion of extension and upgrade work at the facility, earlier than the originally scheduled September date.[19]The maximum speed of test runs was gradually increased, reaching 500 km/h (311 mph) by the end of July 2013.[19]The five-car train was lengthened to seven cars in September 2013, and test-running as a 12-car formation commenced on 25 June 2014.[20]The train was reverted to a 7-car formation later in 2014,[20]and used for public preview rides starting in November.[21]

A series of endurance and speed tests was carried out on the 42.8 km (26.6 mi) test rail in April 2015 to examine the reliability and durability of the L0 after repeated high speed usage. Several speed and distance records were set in the process.[22]After April 2015, the train returned to being used for public preview rides.

Improved L0 Series

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An Improved L0-series train inFuefuki, Japan,29 August 2020

Plans were for a revised model (the Improved L0 series) to replace the L0 series starting in May 2020 (named the "Improved L0 series" ). It is the first L0 series to receive power from the guideway through induction. Before the new series train was introduced, on-board power was provided by a small gas turbine generator in each end car. The new end cars feature a relocated and enlarged camera; they are more aerodynamic thanks to the removal of the exhaust vent necessary for the generator. Plans were to replace one end car by 2020 and one intermediate car. That means that the train consists of a combination of revised and original cars for a period of time, it will be able to generate electricity with its onboard generator while testing the induction system.[2]

The new cars were completed in March 2020. While presenting the new end car to the press, lead designer Motoaki Terai stated that this model represents the completion of around 80–90% of the design goals for the final train.[23]

Variants

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L0 Series:1 × 12-car set owned by JR Central, introduced in 2011 and planned to be converted to the Improved L0 series starting in June 2020.

Improved L0 Series:1 × 12-car set planned to be gradually upgraded from L0 series starting June 2020. Two replacement cars have been completed as of April 2020.

Records

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Speed records

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  • 16 April 2015: Fastest manned train in the world (590 km/h (370 mph))
  • 21 April 2015: Fastest manned train in the world (603 km/h (375 mph))

On 16 April 2015, a manned seven-car L0 series trainset reached 590 km/h (370 mph), breaking the previous world record of 581 km/h (361 mph) set by a JapaneseMLX01maglev train set in December 2003. The speed of 590 km/h was sustained for a period of 19 seconds.[24]That speed record was broken again on 21 April 2015, when a manned seven-car set recorded a top speed of 603 km/h (375 mph)[5]and hit its top speed at 10:48 am, about 4 minutes into the run. With 49 JR Central employees on board, the train sustained the speed for 10.8 seconds, travelling 1.8 kilometers (1.1 mi) during that time.[5][15]

Distance records

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  • 10 April 2015: Longest distance travelled in one day (3,904 km (2,426 mi)), breaking the previous record (2,876 km (1,787 mi)) set in 2003.
  • 14 April 2015: Longest distance travelled in one day (4,064 km (2,525 mi)).[12][25]

See also

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References

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  1. ^ab"L0 design changes"(PDF).jr-central.co.jp.JR Central.Retrieved14 March2019.
  2. ^abcSơn lê リニア thật nghiệm tuyến に cải tiến hình thí nghiệm xe lạng 2020 năm xuân に hoàn thành へ.Thừa りも の ニュース(in Japanese). 20 December 2018.Retrieved14 March2019.
  3. ^リニア thí thừa １１ nguyệt lại khai ＪＲ Đông Hải có liêu ２５００ yên trình độ で[JR Central to resume maglev rides – costing around 2,500 yen].The Yamanashi Nichinichi Shimbun – Web Edition(in Japanese). Japan: The Yamanashi Nichinichi Shimbun. 20 March 2014. Archived fromthe originalon 25 March 2014.Retrieved25 March2014.
  4. ^リニア xe mới lạng は tam lăng trọng công と Nhật Bản xe 輌 chế tạo に điều động nội bộ ＪＲ Đông Hải xã trưởng[Maglev vehicles to be built by Mitsubishi Heavy Industries and Nippon Sharyo – JR Central President] (in Japanese). Japan: Sankei Shimbun. 21 December 2010. Archived fromthe originalon 23 December 2010.Retrieved20 July2013.
  5. ^abc"Japan's maglev train breaks world speed record with 600 km/h test run".The Guardian.United Kingdom: Guardian News and Media Limited. 21 April 2015.Retrieved21 April2015.
  6. ^abＪＲ Đông Hải: リニア khi tốc 500キロ, thí nghiệm lại khai － thông cần quyển 拡 đại で kích 変も[JR Central: Maglev testing at 500 km/h resumes – Expanded commuter area to create major upheavals].Bloomberg(in Japanese). Japan: Bloomberg LP. 29 August 2013. Archived fromthe originalon 30 August 2013.Retrieved12 February2015.
  7. ^ab"JR Tokai unveils a model for the new high-speed maglev train 'L0'".Daily Onigiri.DailyOnigiri. 4 November 2010. Archived fromthe originalon 4 August 2017.Retrieved17 January2013.
  8. ^Iida, Masanobu; Kikuchi, Katsuhiro; Fukuda, Takashi (2006)."Analysis and Experiment of Compression Wave Generated by Train Entering Tunnel Entrance Hood".JSME International Journal Series B Fluids and Thermal Engineering.49(3): 761–770.Bibcode:2006JSMEB..49..761I.doi:10.1299/jsmeb.49.761.
  9. ^"About the vehicle | SCMAGLEV | Central Japan Railway Company".scmaglev.jr-central-global.JR Central.Retrieved15 June2021.
  10. ^ab"Prototype of high-speed maglev train shown to public"Archived30 July 2013 at theWayback Machine.Asahi Shimbun, 3 June 2013.
  11. ^"Mitsubishi Heavy to back out of maglev train project".Nikkei Asian Review.
  12. ^abKeith Barrow (17 April 2015)."Japan breaks maglev speed record".International Railway Journal.Retrieved22 April2015.
  13. ^Ichihara, Tomohiro (22 April 2015)."Japanese rail company eyes exports to cover maglev costs".Nikkei.Retrieved22 April2015.
  14. ^"Japan PM's maglev decision reflects political calculus over economics".Reuters.21 July 2016.Retrieved14 March2019.
  15. ^ab"Japanese rail company eyes exports to cover maglev costs".Nikkei. 22 April 2015.Retrieved22 April2015.
  16. ^"Mitsubishi Heavy to back out of maglev train project".Nikkei Asian Review.10 August 2017.
  17. ^American Rail Club (9 March 2019),Fastest Train Being Built in America! – NYC to DC in 60 Minutes,retrieved14 March2019
  18. ^リニア kiểu mới xe lạng “Ｌ０ hệ” を sơ công khai ＪＲ Đông Hải が sơn lê の thật nghiệm tuyến に dọn nhập[New L0 series maglev car unveiled, delivered to Yamanashi Test Track].Sankei Biz(in Japanese). Japan: Sankei Digital Inc. 22 November 2012.Retrieved22 November2012.
  19. ^ab７ giữa tháng にも tối cao khi tốc ５００キロに kiểu mới xe lạng “Ｌ０ hệ”[New L0 series trains to reach 500 km/h during July].Chunichi Web(in Japanese). Japan: The Chunichi Shimbun. 24 July 2013. Archived fromthe originalon 29 July 2013.Retrieved30 July2013.
  20. ^abリニア, きょうからＬ０ hệ thí nghiệm １２ lạng biên thành で đi hành[Maglev L0 to start testing today as 12-car formation].The Yamanashi Nichinichi Shimbun – Web Edition(in Japanese). The Yamanashi Nichinichi Shimbun. 25 June 2014. Archived fromthe originalon 10 August 2014.Retrieved8 August2014.
  21. ^"Lucky riders whoosh along at 500 km/h on maglev test run for the public".The Asahi Shimbun Asahi & Japan Watch.Japan: The Asahi Shimbun Company. 13 November 2014. Archived fromthe originalon 16 November 2014.Retrieved17 April2015.
  22. ^"Japanese maglev testing tops 600 km/h".Railway Gazette.21 April 2015. Archived fromthe originalon 10 March 2020.Retrieved22 April2015.
  23. ^"Siêu dẫn điện リニアL0 hệ スマホ cùng dạng に điện khí を đến る “Hướng dẫn tập điện” toàn diện đối ứng の cải tiến hình thí nghiệm xe が lên sân khấu ".Thừa りも の ニュース(in Japanese).Retrieved27 March2020.
  24. ^リニア “Ｌ０ hệ”, thế giới tối cao の ５９０キロ nhớ lục[L0 series maglev sets world speed record of 590 km/h].Yomiuri Online(in Japanese). Japan: The Yomiuri Shimbunl. 16 April 2015. Archived fromthe originalon 16 April 2015.Retrieved17 April2015.
  25. ^“Sơn lê リニア thật nghiệm tuyến trường khoảng cách đi hành thí nghiệm” の kết quả chờ について[Results of distance trials at Yamanashi Maglev Test Track](PDF)(Press release) (in Japanese). Japan: Central Japan Railway Company. 16 April 2015.Retrieved17 April2015.
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