Layout
Unlike other stations on the southern branch of the Northern Line, Morden station is not in a tunnel, but is in a wide cutting with the tunnel portals a short distance to the north. Three tracks run through the station to the depot, and the station has three platforms, two of which are island platforms with tracks on each side. The platforms are accessed by steps down from the ticket hall and are numbered 1 to 5 from east to west; the island platforms have different numbers for each face (2/3 and 4/5). To indicate departures, the platforms are usually referred to as 2, 4 and 5. The tunnel portals north of Morden station have the distinction of being one end of one of the longest tunnels in the world (17.25 miles - about 28 km) running via the Bank branch between Morden and East Finchley.
Read more about this topic: Morden Tube Station