Mr. Hugh Creegan:

Our modelling exercises all incorporate carbon pricing. The pricing used is set by the Department of Transport as a parameter for everyone in the transport arena and obviously we use that. I concur with Dr. Caulfield's view that on certain projects it takes a large adjustment in the number for it to make a perceptible change. I wish to repeat that the pricing used is the standard costing provided to us and is used across the public sector.

There is a methodology available to us for the health benefits which we use in particular for active travel projects to ascertain the benefits we get from them. I declare I am not familiar enough to explain it eloquently in a couple of sentences, but it is a methodology we have imported from elsewhere. It has been used elsewhere and is applied in the modelling work we do.