MTR
In 1970, an underground network with four lines was laid out and planned as part of the British consultants' new report, Hong Kong Mass Transit: Further Studies. The four lines were to be the Kwun Tong Line, Tsuen Wan Line, Island Line, and East Kowloon Line. However, the lines that were eventually constructed were somewhat different compared with the lines that were originally proposed by the "Hong Kong Mass Transport Study".