By Andy Silvester London transport chief Andy Byford has said this week will represent more of an organisational challenge than the Olympics as more than a million people descend on the capital for commemorations of the Queen’s life. “The main challenge is the sheer number of people over such a prolonged period” Byford told City A.M. today. “But we are good at big events, we’re used to running big events, we’re well-practiced, and it doesn’t get any bigger than this,” the Transport for London Commissioner said. TfL chiefs have been planning for the Queen’s funeral for a number of years but Byf…