"It's too early in the Thameslink programme to conclude on whether or not it will achieve value for money. That will have to wait until the new service is running. However, there has been good progress in delivering the first stage of the infrastructure part of the programme on time and under budget, which the department now needs to build on. Our principal concern is around the delay in agreeing the contract to build new trains which raises questions about the feasibility of delivering the whole programme by 2018."
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David Cameron said the Met proved it can "do more with less" and declined to criticise the Mayor of London for his water cannon spend.
A group of disabled activists threw toys and balls at him as he entered the conference.
A wet start to the week and the unsettled weather is set to continue over the next few days.