Cutty Sark for Maritime Greenwich DLR station at £30m) and risk of damage to the heritage site at street level. TfL proceeded with an alternate plan for the station that involved the use of selective door operation which allows three-car trains to stop at the station by only having the doors near the centre of the train open in both end carriages. One of only three completely underground stations on the DLR network, Cutty Sark station utilises an island platform setup with two tracks. This is similar to its cross-river sister station, Island Gardens, but unlike Bank station, which is designed to resemble a deep-level London Underground
Safety on the London Underground train. Several stations on the Jubilee line extension are fitted with platform edge doors, which prevent people from falling or jumping onto the tracks. Terrorism in the London Underground has been a major concern because the Underground's importance makes it a prime target for attacks. Many warnings and several attacks, some successful, have been made on the Underground, the most recent on 21 July 2005, although in that case only the detonators exploded. The most recent attack causing damage was on 15 September 2017, when a man detonated a homemade bomb on a District line train at Parsons Green station.