I think that&#x27;s more aspirational, particularly given how long it&#x27;s taken. The Central line is already extremely overcrowded in the peaks, and only yesterday Canary Wharf station had to close to prevent dangerous overcrowding. Even post-Crossrail there may well not be a lot of slack.<p>(Another example: Waterloo is overcrowded and they&#x27;d dearly like to start work on bringing the old Eurostar platforms into use. But they can&#x27;t start that until work on Victoria <i>underground</i> station finishes, because the work will involve diverting some trains into Victoria rail station which would lead to overcrowding in the underground station if they did it while work there was still going on).