Some Questions for Mr Cameron
David Cameron, MP, recently announced that congestion on the roads was one of the most major obstacles to the future growth of the British economy.
So I have some questions for him.
Crossrail

Crossrail tunnel boring

At Westbourne Park in London (not really a park) Crossrail are constructing a large tunnel to convey this new rail line from Paddington on the West to Canary Wharf in the East. Two miles away the 250,000 concrete segments required for this project are being cast at Old Oak Common (not really a common).  Both Westbourne Park and Old Oak common are alongside the Grand Union Canal. 
So why are they going to be moved by road?
To maintain the rate of supply demanded by the tunnel constructors will take 35 large lorries every day for several years.
It could be accomplished by eight barges per day without causing any congestion.
Olympic Park
In the spirit of a greener Olympics it was projected that 2 million tons of building materials would be carried to the site in East London by water. To facilitate that British Waterways spent £21.5m regenerating Prescott Lock and the Department of Transport also chipped in £2.5m to help it along.
How much material has been moved by canal? 600 tons !
Many moons ago Prof. J. K. Galbraith  said that road traffic will always expand to fill the space available.  The way to reduce congestion on the roads is not to keep building more roads  but moving people and freight more efficiently. That means increasing the provision of public transport and utilising alternative modes of transport whenever possible.
Whilst we are on this subject of Three Mill Lock as it is now called. The contractors claimed about £2m more than the original estimate and BW Director of Regeneration, Mark Benstead,  was given the personal bonus target of reducing this.  He failed to reduce the claim but he succeeded in obtaining a golden farewell of £188,735 when he left suddenly.  And what's more, he even received a further bonus of £1260 after he had left.
Mr. Cameron, may I present the above for your consideration and comment with particular regard to the success of the British Economy?