23 July,2012 08:18 AM IST | | AFP
Johnson said Britain was feeling the necessary tension before a big performance, as the clock ticks down to Friday's opening ceremony on the Olympic Park in Stratford, east London.
"So far the traffic system and transport networks generally are holding up well.
Possibly what we're going though at the moment as a nation, as a city, is that necessary, pre-curtain-up moment of psychological self-depression before the excitement begins on Friday. It is only natural that people should be tense, that they should be expectant," Johnson told BBC. - u00a0