page_title: Alexander Dennis Enviro500
section_title: Citybus
hierarchical_section_title: Alexander Dennis Enviro500 / First generation (2002–2014) / Hong Kong / Citybus
caption_attribution_description: 中文（繁體）‎: 8103@B3X，攝於屯門鄉事會路近屯門公園
context_page_description: The Alexander Dennis Enviro500 is a three-axle double-decker bus built by Alexander Dennis in the United Kingdom. It was unveiled in 2002 and is one of the Enviro-series bus models made by TransBus/Alexander Dennis.
  The second generation Enviro500, also known as the Enviro500 MMC or Enviro500 USA Standard, was launched in 2012, replacing the original version.
context_section_description: Until 2014, Citybus has 220 Enviro500s in services, they are all 12 metres long.
  Citybus ordered 10 Enviro500s with Euro IV engine and luggage racks, soon after its sister company New World First Bus's order. The first batch of chassis arrived Hong Kong in the third quarter of 2007 for body assembly in NWFB depot at Chong Fu Road. They entered service in December 2007/January 2008.
  A further batch of 18 buses with Euro IV engines had been ordered for delivery in 2009, they entered service in 2009. They were followed by another 77 buses with Euro V engines, they entered service in 2010/11. In 2011 Citybus ordered 115 Enviro500s, with three fitted with luggage racks.
caption: Citybus Enviro500 in April 2008
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