Original: Since the opening in 1982, the Tsuen Wan Line is the only line whose alignment has virtually remained the same for the past 23 years. For example, the Kwun Tong Line's alignment has changed twice since its opening â "the taking over of Tsuen Wan Line from Mong Kok to Central, and the taking over of Eastern Harbour Crossing section by the Tseung Kwan O Line.
Simplified: Depots are located at Kowloon Bay (for Kwun Tong Line), Tsuen Wan (for Tsuen Wan Line), Heng Fa Chuen (for Island Line), and Dream City (for Tseung Kwan O Line).