Alexander Dennis Enviro 400
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The Alexander Dennis Enviro 400 is a 2-axle double-decker bus built by Alexander Dennis from late 2005. It is designed as the replacement of the Dennis Trident chassis/Alexander ALX400 body in the UK.
The Enviro 400 was designed by TransBus International until its collapse and reformation as Alexander Dennis. The Enviro 400, like the other products in the Enviro range, is an integral, but the body is also available on the Volvo B7TL/B9TL and Scania N230UD chassis for sale in the UK market.
London operator Metroline was the first company to order the Enviro 400, with the first of 28 entering service in January 2006. One dual door demonstrator, named "Spirit of London", was delivered to Stagecoach London to replace the Dennis Trident destroyed during 7 July 2005 London bombings [1] and a single door demonstrator was delivered to the then Travel West Midlands (now National Express West Midlands) for evaluation. Both prototypes were exhibited at "Coach & Bus Live 2005" in the National Exhibition Centre in Birmingham, UK and then entered service in January 2006. Metroline, National Express West Midlands and the Stagecoach Group were large customers of the Dennis Trident.
Alexander Dennis secured its first large group order for the Enviro 400 in February 2006, with the Stagecoach Group purchasing 130 low-height models, which forms the bulk of the group's 2006 double-deck requirement (the remaining 30 being of the older ALX400 design).
In May 2006, London General received the first Enviro 400 which met the Euro IV emission standard.
The Enviro 400 had sold well in London with a number of operators, such as Travel London (now National Express London) and London Central, operating these buses. It is also popular with Stagecoach, who placed a further order of 175 buses with Euro IV engine.
On 13 October 2006, Solent Blue Line received the first Enviro 400 ever built on a Volvo chassis - away from the trend of Enviro 400s being built on Alexander Dennis chassis. It was delivered as a Volvo B7TL/Enviro 400 meeting the Euro III emission standard, with the interior done in Wilts and Dorset livery. However, this remains a one-off as all Enviro 400s on Volvo chassis will be built on the Euro IV-engined B9TL chassis. An Arriva demonstrator was shown at Euro Bus Expo in 2006 to the latter standard.
Irish state run operator Dublin Bus was the first bus operator to order the Volvo B9TL-based Enviro 400, it ordered 50 with the first of these entered service on 14 August 2007. In the UK, East Yorkshire Motor Services took delivery of 5 Enviro 400-bodied Volvo B9TL in December 2007, they entered service in January 2008.
Stagecoach announced on 28 February 2007 that it had ordered 25 Enviro 400s with Scania N230UD chassis, they were delivered in early 2008.
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Competitors (chassis/complete bus):
Competitors (bodywork):
Other Alexander Dennis bus products:
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