Editing London Underground (section)

== Research ==
The London Underground is frequently studied by academics because it is one of the largest, oldest, and most widely used systems of public transit in the world. Therefore, the transportation and [[complex network]] literatures include extensive information about the Tube system.

For London Underground passengers, research suggests that transfers are highly costly in terms of walk and wait times. Because these costs are unevenly distributed across stations and platforms, path choice analyses may be helpful in guiding upgrades and choice of new stations.<ref>{{Cite journal|date=1 February 2011|title=Assessing the cost of transfer inconvenience in public transport systems: A case study of the London Underground|journal=Transportation Research Part A: Policy and Practice|language=en|volume=45|issue=2|pages=91–104|doi=10.1016/j.tra.2010.11.002|issn=0965-8564|last1=Guo|first1=Zhan|last2=Wilson|first2=Nigel H.M.|bibcode=2011TRPA...45...91G }}</ref> Routes on the Underground can also be optimized using a global network optimization approach, akin to routing algorithms for [[Internet]] applications.<ref>{{Cite journal|last1=Yeung|first1=Chi Ho|last2=Saad|first2=David|last3=Wong|first3=K. Y. Michael|date=20 August 2013|title=From the physics of interacting polymers to optimizing routes on the London Underground|journal=Proceedings of the National Academy of Sciences|language=en|volume=110|issue=34|pages=13717–13722|doi=10.1073/pnas.1301111110|issn=0027-8424|pmid=23898198|pmc=3752220|arxiv=1309.0745|bibcode=2013PNAS..11013717Y|doi-access=free}}</ref> Analysis of the Underground as a network may also be helpful for setting safety priorities, since the stations targeted in the [[7 July 2005 London bombings|2005 London bombings]] were amongst the most effective for disrupting the transportation system.<ref>{{Cite journal|last=Jordan|first=Ferenc|date=2008|title=Predicting target selection by terrorists: a network analysis of the 2005 London underground attacks|journal=International Journal of Critical Infrastructures|language=en|volume=4|issue=1/2|pages=206|doi=10.1504/ijcis.2008.016101|bibcode=2008IJCI....4..206J |issn=1475-3219}}</ref>

A study in March 2023, showed that over £1.3{{nbsp}}million worth of mobile phones were stolen on the London Underground in 2022, more than the entire UK rail network combined.<ref>{{Cite web |date=7 March 2023 |title=Phone Theft on the Rise in London - Get Phone Repairs |url=https://www.getphonerepairs.com/uk-phone-theft-2022/london/ |access-date=20 March 2023 |website=Get Phone Repairs |language=en-GB |archive-date=20 March 2023 |archive-url=https://web.archive.org/web/20230320104146/https://www.getphonerepairs.com/uk-phone-theft-2022/london/ |url-status=live }}</ref>