Editing Docklands Light Railway (section)

== Accidents and incidents ==
[[File:Island Gardens DLR station in 1992.jpg|thumb|right|The original Island Gardens DLR station at the end of a viaduct]]
* On 10 March 1987, before the system opened, a test train crashed through [[buffer stop]]s at the original high-level {{stl|DLR|Island Gardens}} terminus and was left hanging from the end of the elevated track. The accident has largely been attributed to unauthorised tests being run before the correct installation of the wayside safety system had been verified; an omission in the wayside system allowed the train to travel too fast on the approach to the terminus. The train was being driven manually at the time.<ref name=Risks1>{{cite news |url=http://catless.ncl.ac.uk/Risks/5.29.html#subj3 |title=London Docklands Light Railway; Northern Line's Dot-Matrix Indicators |archiveurl=https://web.archive.org/web/20070824045251/http://catless.ncl.ac.uk/Risks/5.29.html |archivedate=24 August 2007 |work=[[RISKS Digest]] |volume=5 |issue=29 |at=Article 3 |date=13 August 1987 }}</ref><ref name=ModernRailways1>{{cite magazine |title=Report on the Docklands Light Railway Accident Which Occurred at Island Gardens Station on 10 March 1987 |magazine=Modern Railways |location=London |date=May 1987 }}</ref>{{page needed|date=July 2012}}<ref name=ModernRailways2>{{cite magazine |title='Unauthorised Tests' Caused DLR Crash |magazine=Modern Railways |location=London |date=June 1987 }}</ref>{{page needed|date=July 2012}} However, inside sources have stated these tests were being done to test the ATP if the train was entering the station too quickly, and after six successful tests, a software issue involving asynchronous computer systems caused the train to not receive the instructions to activate the ATP, cut off power from the motors, and apply the brakes soon enough to prevent the train from slowing down, causing the train to go through the buffers. Following this, the software was reworked and the braking distance was changed to ensure such incidents wouldn't happen in practice, and as a result may have possibly prevented a far more tragic incident from occurring.<ref>{{Citation |title=The Island Gardens Accident: What Really Happened | date=14 March 2021 |url=https://www.youtube.com/watch?v=y5mP72l4AXs |access-date=2023-07-12 |language=en}}</ref>
* On 22 April 1991, two trains collided at a junction on the {{stl|DLR|West India Quay}} bridge during morning [[rush hour]], requiring a shutdown of the system and evacuation of passengers by ladder.<ref name=Risks5>{{cite news |url=http://catless.ncl.ac.uk/Risks/11.52.html#subj1.1 |title=Another commuter train wreck in London |author=Kamens, Jonathan I. |work=[[RISKS Digest]] |volume=11 |issue=52 |date=23 April 1991 |url-status=live |archive-url=https://web.archive.org/web/20070726094556/http://catless.ncl.ac.uk/Risks/11.52.html#subj1.1 |archive-date=26 July 2007 }}</ref><ref name=UPI1>{{cite news |title=Computer-controlled commuter trains collide in east London |agency=[[United Press International]] |date=22 April 1991}}</ref> One train was travelling automatically; the other was under manual control.<ref name=Risks6>{{cite news |url=http://catless.ncl.ac.uk/Risks/11.54.html#subj10.1 |title=Trains collide in east London |author=Batten, Ian G. |work=[[RISKS Digest]] |volume=11 |issue=54 |date=25 April 1991 |url-status=live |archive-url=https://web.archive.org/web/20070922052353/http://catless.ncl.ac.uk/Risks/11.54.html#subj10.1 |archive-date=22 September 2007 }}</ref>
* On 9 February 1996, the [[Provisional Irish Republican Army|Provisional IRA]] [[1996 Docklands bombing|blew up a lorry under a bridge]] near {{stl|DLR|South Quay}},<ref>{{Cite news|url=http://www.nydailynews.com/archives/news/1996/02/10/1996-02-10_blast_shatters_london__adams.html |title=Blast shatters London, Adams Presumes IRA's Responsible |first1=Ellen |last1=Tumposky |first2=Don |last2=Gentile |newspaper=New York Daily News |date=10 February 1996 |access-date=12 November 2008 |url-status=dead |archive-url=https://web.archive.org/web/20090912002136/http://www.nydailynews.com/archives/news/1996/02/10/1996-02-10_blast_shatters_london__adams.html |archive-date=12 September 2009 }}</ref> killing two people and injuring many others.<ref>{{Cite news |url=http://news.bbc.co.uk/onthisday/hi/dates/stories/february/10/newsid_2539000/2539265.stm |work=BBC News |title=Docklands bomb ends IRA ceasefire |date=10 February 1996 |access-date=2 January 2010 |url-status=live |archive-url=https://web.archive.org/web/20120321012534/http://news.bbc.co.uk/onthisday/hi/dates/stories/february/10/newsid_2539000/2539265.stm |archive-date=21 March 2012 }}</ref> This caused £85&nbsp;million of damage and marked an end to an IRA ceasefire in force at the time. Significant disruption was caused and a train was stranded at Island Gardens, unable to move until the track was rebuilt.