Mr. Fred Barry:

We have values put against safety savings, that is, a certain value is put on a life or an injury. It is not calculated by us but we are given values to use. We look at changes in travel times and, again, values are used to reflect the cost of a heavy goods vehicle per hour, the cost of business traffic and the cost of social and personal traffic. They are all modelled and they give us benefits over the life of the project. Against that, we set the costs to the public of the project, which are the payments we make.