Introduction
Ma On Shan (MOS) Rail is a new 11.4km railway comprising 9 stations from Shatin to the new town of Ma On Shan. The railway is built primarily on a viaduct with a small section in the middle running at grade along the central divider of Tate's Cairn Highway, so as to minimise land take and disruption to road traffic.
Tai Wai Station serves as an interchange station between MOS Rail and East Rail. Passengers from Ma On Shan can simply use the cross-platform interchange at Tai Wai Station to board trains to Tsim Sha Tsui. To cope with the increase in passenger flow, Tai Wai Station has been expanded three times its original size and the extended concourse was opened in December 2003. The line opened on December 21, 2004.