Quarry Bay Station - Station Layout

Station Layout

The station is noted for having the deepest platforms in the MTR network, with a maximum depth of 37m below ground level, to allow the tunnel to traverse Victoria Harbour. The station's concourses, however, are at ground level and open directly onto the street. As a result, four sets of escalators and many long passageways are necessary to connect the concourses to the deepest platforms.

Since platforms 3 and 4 were built some time after platforms 1 and 2, no cross-platform interchanges are available in Quarry Bay station. Commuters interchanging between the two lines have to walk through a long passageway and two flights of escalators for about 5 minutes to reach the platforms of the other line.

This inconvenience and increasing passenger numbers were what prompted the MTRC to undergo the Quarry Bay Congestion Relief Works, which extended the █ Kwun Tong Line one station to the west to North Point Station, where cross-platform interchanges are provided. The platform numbers of platforms 3 and 4 were switched when the Kwun Tong Line is extended to North Point in 2001.