Tretten ventilationskakter er planlagt at blive moderniseret mellem 2009 og 2014. I første fase udskiftes luftskakterne i Drayton Park, Gillingham Street, Moreton Terrace, Purloss Road, Somerleyton Road og Tynemouth Road.<ref name="klettner"/> I anden fase er planlagt skakterne i Cobourg Street, Dover Street, Gibson Square, Great Titchfield Street, Isledon Road, Kings Cross, Palace Street og Rita Road.<ref name="klettner">{{cite news|url=http://www.cnplus.co.uk/news/underground-keeps-its-cool/528818.article|title=Underground keeps its cool|date=24. januar 2008|time=Andrea|last=Klettner|work=Construction News|access-date=11. juni 2012|archive-date= 1. august 2013|archive-url=https://web.archive.org/web/20130801080943/http://www.cnplus.co.uk/news/underground-keeps-its-cool/528818.article|url-status=dead}}</ref>
Historie Foreninger Organisationer