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Hamburg U-Bahn Type DT5

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HHA-Baureihe DT5
DT5 304 arriving at Baumwall station, July 2023
ManufacturerAlstom & Bombardier
Built atSalzgitter
ReplacedType DT3
Constructed2008-2022
Number built163 vehicles
Formation3 cars per trainset
Capacity336 (96 seated)
OperatorsHamburger Hochbahn AG
Specifications
Car body constructionStainless steel
Train length39,600 mm (129 ft 11 in)
Width2,600 mm (8 ft 6 in)
Doors2 pairs per side
Maximum speed80 km/h (50 mph)
Weight54,6 t
Traction systemThree-phase
Power output135 kW x 6
Electric system(s)750 V DC, 3rd rail
Current collector(s)contact shoe
Braking system(s)Disc brake, regenerative brake
Track gauge1,435 mm (4 ft 8+12 in)

The Type DT5 is an electric multiple unit (EMU) train type operated by the Hamburger Hochbahn AG on the Hamburg U-Bahn system. It is the first type of rolling stock on the Hamburg U-Bahn that has air conditioning and gangways between the individual cars.[1]

Formation

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Every DT5 train consists of three permanently-coupled cars. The cars are connected with gangways, allowing passengers to walk into the adjacent cars.[1] Up to three units can be coupled together.[2]

Interior

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The interior consists of red upholstered seating, and spaces for wheelchairs[1] and prams.[3] The trains have displays which show the names of the next four stations, and CCTV cameras.[3] The interior is air conditioned.[2]

Technical specifications

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The train is built to an articulated design, with the two end cars only having one bogie, while the center car has two bogies.[1] The car bodies are made out of stainless steel, and the trains are powered by three-phase motors.[1] In order to save weight, the DT5 trains use aluminium brake discs, which make a loud squealing sound while braking.[4]

History

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A European-Union–wide tender for the construction of the DT5 trains began in 2005.[5] Siemens, Stadler, Rotem and a consortium of Alstom and Bombardier bid for the contract.[1] The trains were ordered in December 2006 from the consortium of Alstom and Bombardier at a cost of 240 million.[1] The first unit was delivered to the Barmbek depot on December 1, 2011.[6] Further DT5 trains were ordered in 2016,[7] 2018[8] and 2019[9] bringing the total number of trains built to 163.[10]

References

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  1. ^ a b c d e f g "Hamburg's DT5 takes shape". metro-report.com. Metro Report International. August 2, 2008. Archived from the original on August 1, 2019. Retrieved February 11, 2019.
  2. ^ a b "Hamburg unveils first DT5 trainset". metro-report.com. Metro Report International. March 9, 2010. Archived from the original on August 1, 2019. Retrieved February 11, 2019.
  3. ^ a b "Der MOPO-Check: Das taugt die neue U-Bahn" [The MOPO-Check: This is the new subway]. mopo.de (in German). Morgenpost Verlag. March 5, 2010. Archived from the original on February 9, 2019. Retrieved February 9, 2019.
  4. ^ Spörrle, Mark (October 4, 2017). "Warum quietschen die neuen U-Bahn-Züge so?" [Why are the new subway trains squealing like that?]. zeit.de (in German). Zeit Online. Archived from the original on February 14, 2019. Retrieved February 13, 2019.
  5. ^ Pabst, Martin (2006). S-Bahn- und U-Bahn-Fahrzeuge in Deutschland [S-Bahn and U-Bahn vehicles in Germany] (in German) (2nd ed.). GeraMond. p. 64. ISBN 3-7654-7366-9.
  6. ^ Trümpler, Erik (December 1, 2011). "Riesenraupen: Das ist Hamburgs neue U-Bahn" [Giant caterpillars: This is Hamburgs new subway]. mopo.de (in German). Morgenpost Verlag. Archived from the original on February 9, 2019. Retrieved February 9, 2019.
  7. ^ "World rolling stock market February 2016". railwaygazette.com. Railway Gazette. February 14, 2016. Archived from the original on December 3, 2016. Retrieved February 14, 2019.
  8. ^ "More DT5 metro trains ordered for Hamburg". metro-report.com. Metro Report International. December 14, 2018. Archived from the original on February 14, 2019. Retrieved February 11, 2019.
  9. ^ "Alstom to supply 32 additional DT5 metros for Hamburg". Alstom. Retrieved 2023-02-21.
  10. ^ "163 vehicles: the latest metro generation for Hamburg is complete". Alstom. Retrieved 2023-02-21.
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