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Alexander Dennis Enviro400 City

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The Alexander Dennis Enviro400 City is a low-floor double-decker bus produced by the British bus manufacturer Alexander Dennis since 2015, as an alternative to the standard Alexander Dennis Enviro400 MMC bodywork. The Enviro400 City is produced at Alexander Dennis' Falkirk and Scarborough factories in the United Kingdom. It is available as a complete integral diesel or hybrid bus, as well as the Enviro400EV complete integral battery electric bus or Scania N280UD compressed natural gas-powered chassis.

Alexander Dennis Enviro400 City
Arriva London Alexander Dennis Enviro400H City on Tower Bridge on route 78 in April 2023
Overview
ManufacturerAlexander Dennis
Production2015–present
Body and chassis
DoorsSingle or dual door
Floor typeLow floor
ChassisIntegral, Scania N series
RelatedAlexander Dennis Enviro400EV
Alexander Dennis Enviro400 MMC
Powertrain
EngineCummins ISBe (Enviro400 MMC)
Scania DC09 (Scania N2x0UD)
Capacity64–100 seated
Dimensions
Length10.3 m (33 ft 10 in) to
11.5 m (37 ft 9 in)
Width2.55 m (8 ft 4 in)
Height4.2 m (13 ft 9 in) to
4.3 m (14 ft 1 in)
Curb weight11 tonnes (10.8 long tons; 12.1 short tons)
Chronology
PredecessorAlexander Dennis Enviro400

Introduction

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Main article: Alexander Dennis Enviro400 MMC

The Enviro400 City can trace its design roots back to 1997, with the introduction of the Dennis Trident 2, one of the first low-floor double-decker buses to enter service. The model saw immense success at the turn of the millennium, despite financial difficulties facing Dennis Specialist Vehicles during this period. As a result of these, production of the Trident 2 passed first to TransBus International in 2001 and then to Alexander Dennis in 2004.

Alexander Dennis updated the basic Trident 2 chassis to launch the Alexander Dennis Enviro400 in 2005 – the basic chassis of which was initially still badged internally as a Trident. A second-generation Enviro400 was launched in 2009, with facelifted styling and updated chassis design, which finally dropped the Trident moniker. The second-generation Enviro400 was overhauled again to create the Enviro400 MMC, which was launched as the classic model's eventual replacement in 2014. Production of the Enviro400 ceased in 2018.

In late 2015, Alexander Dennis launched the Enviro400 City, a premium model of the Enviro400 MMC, featuring a restyled front end to match the single-decker Enviro200 MMC and a glass staircase as standard amongst other features, designed to compete with the New Routemaster and Wright SRM designs in the London bus market.[1][2][3]

Powertrain variants

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Conventional diesel

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Blackpool Transport became the first operator outside London to order the Enviro400 City on conventional diesel-powered chassis in January 2016, with the new buses upgrading the operator's 9 service to high-specification 'Palladium' standard.[4][5] Other orders were delivered to Uno of Hertfordshire in 2017, branded for The Comet routes 614 and 644;[6] Arriva Buses Wales, with 13 buses also delivered in 2017 for Arriva Sapphire services in Wrexham;[7] Plymouth Citybus, which ordered 27 for its busier services (16 in 2017, with all but one featuring 'Spark' route branding for the 21/21A/21B services; and 11 in 2019, predominantly used on the 42/42A/42C services);[8][9] Bluestar, which had 20 delivered in 2018 for its 18 service,[10] and First Glasgow, with 10 for its 500 Glasgow Airport Express in 2019.[11]

Two Enviro400 City buses were uniquely built for high-specification private hire use for the independent operator Southern Transit in April 2018, nicknamed 'Citymasters' by the operator.[12][13] Another was delivered to Delaine Buses in October 2023, the operator's first new Alexander Dennis double-decker.[14]

In February 2023, Reading Buses ordered seven 11.5 m (38 ft) Enviro400 City buses, the first of the type to be built to this length, intended to be built with high-specification interiors with 76 seats for use on Green Line bus routes 702 and 703.[15] These were delivered in June 2023 and coincided with routes 702 and 703 being rebranded the London Line and the Flight Line respectively.[16] A further nine Enviro400 City buses were delivered in February 2024 for use on the Reading to Bracknell 'Lion' 4 and X4 services.[17]

Nineteen Scania N250UDs with Enviro400 City bodies were delivered to First Eastern Counties for their flagship 'Excel' services in 2020, featuring high-specification interiors, next stop announcements and camera mirrors.[18]

Enviro400H/ER

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Enviro400ER operated by Dublin Bus on contract to TFI

The Enviro400 City was initially launched on the Enviro400H hybrid electric platform developed by Alexander Dennis and BAE Systems, which was carried over from the previous Enviro400. The first production examples of the Enviro400 City entered service with Arriva London on route 78; a repeat order in 2016 would later see this fleet grow to a total of 53 Enviro400 City hybrids.[19]

The HCT Group bought the hybrid model for its Transport for London 'red bus' contracts, taking delivery of 47 of the type between 2016 and early 2017 for service on routes 26 and 388,[20][21] then nine more for operation on route 20 in 2019.[22]

Transport for Ireland ordered 600 of the Enviro400ER model, the successor to the Enviro400H chassis launched in 2019.[23] Delivery of the first 100 buses commenced in late 2020; all are to be supplied with City bodies.[24][25]

Enviro400 City CBG

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Nottingham City Transport 'Green Line' Enviro400 City CBG in August 2017

The Enviro400 City CBG was launched in 2016 at the Euro Bus Expo, built on the Scania N280UD compressed natural gas-powered chassis.[26] The CBG drivetrain was only available with the City body, although some earlier models were delivered with MMC bodies.[27]

Nottingham City Transport has been the largest customer for the Enviro400 City CBG, taking delivery of 120 between 2017 and 2019 as part of a major fleet renewal programme; this made the company the largest operator of double-decker biogas buses in the world.[28][29] An additional 23 Enviro400 City CBGs have been ordered for delivery in summer 2022, which the operator expects to be its last.[30][31] 22 Enviro400 CBGs with both MMC and City bodies also entered service with Reading Buses between 2016 and 2018.[27][32]

First West of England initially ordered an Enviro400 City CBG for services in Bristol in 2017,[33] which was later followed by an order for 21 Enviro400 City CBGs for service on the Bristol MetroBus pink line m1. Due to First's Bristol depots being unable to support the route, the buses were subcontracted out to CT Plus Bristol.[34] A further 77 Enviro400 City CBGs entered service with First West of England in early 2020.[35]

Enviro400EV

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Main article: Alexander Dennis Enviro400EV

A battery electric variant built on the Enviro400 City body known as the Enviro400EV was unveiled in partnership with BYD Auto in 2018. The Enviro400FCEV fuel cell bus was launched in 2021, with production commencing a year later, while a second-generation Enviro400EV with restyled bodywork and new driveline technology was also launched in 2022.

See also

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References

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  1. ^ "A new bus for London". Coach & Bus Week. Peterborough. 14 September 2015. Retrieved 20 March 2022.
  2. ^ "ADL launching Enviro400H City". Bus & Coach Buyer. Peterborough. 17 September 2015. Retrieved 20 March 2022.
  3. ^ "ADL gets the London look". RouteOne. 27 October 2015. Retrieved 20 March 2022.
  4. ^ "Blackpool to take first single-door Enviro400 City". Bus & Coach Professional. 22 January 2016. Archived from the original on 5 November 2016.
  5. ^ Deakin, Tim (26 June 2019). "Blackpool Transport pushes on with five-year plan". RouteOne. Retrieved 16 March 2022.
  6. ^ "Uno Buses launches new fleet onto The Comet route". Coach & Bus Week. Peterborough. 19 September 2017. Retrieved 20 March 2022.
  7. ^ "Wrexham Sapphire upgraded with City fleet". Buses. Stamford: Key Publishing. 13 July 2017. Retrieved 21 March 2022.
  8. ^ "Spark Enviro400 Citys launched in Plymouth". Coach & Bus Week. Peterborough. 1 August 2017. Retrieved 7 November 2022.
  9. ^ Deakin, Tim (11 December 2019). "Plymouth Citybus takes 10 Enviro400 Citys". routeone. Retrieved 7 November 2022.
  10. ^ Liddell, Emily (1 November 2018). "Bluestar to launch 19 new low-emission buses for its 18 route in Southampton". Southern Daily Echo. Southampton. Retrieved 16 March 2022.
  11. ^ "Take-off for Glasgow Airport fleet renewal". Coach & Bus Week. Peterborough. 30 April 2019. Retrieved 20 March 2022.
  12. ^ "Southern Transit invests in bespoke Enviro400 City double-deckers". Coach & Bus Week. Peterborough. 4 April 2018. Retrieved 7 November 2022.
  13. ^ "Bus company offering free transport for educational trips in 2018". SussexWorld. Chichester. 6 March 2018. Retrieved 7 November 2022.
  14. ^ "Delaine Buses takes first double-decker from Alexander Dennis". routeone. 31 October 2023. Retrieved 31 October 2023.
  15. ^ "Reading Buses orders seven Enviro400s for Green Line". routeone. 2 February 2023. Retrieved 2 February 2023.
  16. ^ "Green Line now Flight Line and London Line for Reading". routeone. 16 June 2023. Retrieved 16 June 2023.
  17. ^ Halford, Paul (14 February 2024). "Reading Buses launches nine new high-spec Enviro400s". routeone. Retrieved 14 February 2024.
  18. ^ Deakin, Tim (2 February 2020). "First Eastern Counties introduces high-spec Excel fleet". RouteOne. Retrieved 22 March 2022.
  19. ^ "ADL: On a clear flightpath". RouteOne. 5 July 2016. Retrieved 20 March 2022.
  20. ^ "HCT Group makes 38 vehicle order from ADL". Coach & Bus Week. Peterborough. 23 May 2016. Retrieved 7 November 2022.
  21. ^ "Forest Asset Finance helps social enterprise HCT Group secure coveted TfL bus routes". Asset Alliance Group (Press release). Garnett Keeler PR. 9 August 2017. Retrieved 7 November 2022.
  22. ^ Lidstone, John G.; et al. (18 April 2019). "In Fleet News this month". Buses. No. 770. Stamford: Key Publishing. Retrieved 7 November 2022. New for route 20 (Walthamstow-Debden) are H41/23D-seated Alexander Dennis Enviro400H City 2539-47 (YX19 ORO/P/SW/ Y/Z).(subscription required)
  23. ^ "Alexander Dennis Enviro400ER gives electric range with new hybrid option". Mass Transit. 8 August 2019. Retrieved 20 March 2022.
  24. ^ Reid, Scott (31 January 2020). "Scottish bus firm Alexander Dennis to build up to 600 buses for Irish operator". The Scotsman. Edinburgh. Retrieved 16 March 2022.
  25. ^ "Plug-in hybrid buses for Ireland. 100 ADL Enviro 400ER ordered". Sustainable Bus. 30 January 2020. Retrieved 20 March 2022.
  26. ^ "ADL lines up innovations". RouteOne. 8 November 2016. Retrieved 20 March 2022.
  27. ^ a b "World first Enviro400CBG cooks on gas at Reading". RouteOne. 3 March 2017. Retrieved 16 March 2022.
  28. ^ Deakin, Tim (22 July 2019). "NCT launches more Scania ADL biogas 'deckers". RouteOne. Retrieved 16 March 2022.
  29. ^ "NCT receives final biogas buses from Scania/ADL". Coach & Bus Week. Peterborough. 27 November 2018. Retrieved 16 March 2022.
  30. ^ "NCT celebrates biogas bus anniversary as 23 more due". RouteOne. 4 July 2022. Retrieved 6 July 2022.
  31. ^ Peat, Chris (5 July 2022). "Half-decade of gas buses marked". Bus & Coach Buyer. Peterborough. Retrieved 6 July 2022.
  32. ^ "Reading launches gas buses on flagship route 17". Coach & Bus Week. Peterborough. 16 January 2018. Retrieved 16 March 2022.
  33. ^ Sturge, Elliot (8 August 2017). "Bristol launches first double-decker biogas bus". Bristol 24/7. Retrieved 18 March 2022.
  34. ^ "Bristol Community Transport to operate Bristol Metrobus m1 with gas bus fleet". Coach & Bus Week. Peterborough. 10 April 2018. Retrieved 18 March 2022.
  35. ^ "First West powers cleaner Bristol fleet with 77 biogas buses". Transport Engineer. 24 February 2020. Retrieved 18 March 2022.
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