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
Attacks on the London Underground On 9 December, a van bomb partially detonated at the car park of Woodside Park station. No-one was injured but it caused evacuations and disruptions. A device exploded at an underground passageway at South Kensington station on 3 February 1993. On 20 December, a device exploded in a litter bin in Northfields station. On 21 December, coded bomb warnings from the IRA resulted in a paralysed London Underground system, as tens of thousands were evacuated from 100 tube stations during the morning rush hour. In 2005 two groups of Islamist extremists attacked a number of underground lines and bus routes