What amazes me is the London ExCeL centre which can host huge events of tens of thousands of people but the connections don’t seem to be that overloaded, with C

What amazes me is the London ExCeL centre which can host huge events of tens of thousands of people but the connections don’t seem to be that overloaded, with Crossrail no doubt even less so. Though sporting events still overwhelm the system albeit for an hour or so.