By: The Associated Press (AP)
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

The main train from central London to Olympic Park is now wide open and the congestion has cleared.

A far cry from a couple hours ago, when the Javelin train was jammed.

This weekend is expected to be the Olympics' biggest when it comes to crowds, and Olympic and transit authorities are preparing for a sea of humanity to flood into the area around the Olympic Games.

— Jon Krawczynski and Paul Newberry — Twitter http://twitter.com/APkrawczynski and http://twitter.com/pnewberry1963

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EDITOR'S NOTE — "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item.