Indeed, the Olympics is being cited as the main reason to delay Crossrail, which has been on the drawing board for 18 years and was once intended to be ready in time for the event. If the two projects were undertaken simultaneously, it's feared that it will put construction work at a premium and everything will get more expensive. Indeed, as it is it's easy to picture Crossrail's costs exceeding the estimated £10bn. MetroNet's collapse was caused by the unsustainable cost of the work - a predicted overspend of £2bn by 2010.
The question of how Crossrail will be funded remains its main stumbling block, with the key issue being how to combine public and private funding. With the MetroNet PPP wreckage still looming large in the rear view mirror, we can imagine the plans proceeding down the road with extreme caution.