London 2012: Inside Olympic Games transport centre
15 November 2011 Last updated at 04:07 GMT
The London 2012 Olympic Games are being described as Britain's largest peacetime logistical exercise, and one of the biggest challenges is transport.
A huge planning operation is under way to ensure athletes and officials get to the Games on time and to keep traffic moving across the city.
The operation will be co-ordinated from Transport for London's (TfL) existing traffic control centre.
Graham Jones, TfL's Surface Transport Games Programme Director, explains how the centre works and what extra provisions are being made.