Older exterior wall of building block dotted with window air conditioners; Images taken in 2009 of Central and Admiralty areas, Hong Kong Island, highlighting the traffic conditions with cars and mass transit. Also views of the Central Elevated Walkway, an extensive footbridge network spanning Admiralty and Central, near Victoria Harbour in Hong Kong. The British colony of Hong Kong introduced its first double-decker buses in 1949 by Kowloon Motor Bus. By law, double-decker buses in Hong Kong are limited to a length of 12 metres (40 feet). Today, the majority of buses running in Hong Kong are double-decker buses. There are also double-deck trams; Hong Kong Tramways is the only tram company in the world that operates double-deck trams exclus...