Mr. Peter Walsh:

As to the tolling companies and the cost, they maintain the network for the period of the contract. The deal was made up of the construction cost and the operational maintenance of the contract for the full duration of the contract, which, depending on the contract, is 25 years, 35 years or 45 years. Those costs are ongoing over the period. The cost of finance is also included. My colleague, Mr. Desmond, can provide more detail on this if the Senator likes. However, we have indicated in the pack provided details of the costs for each of the eight tolls. When the deal is originally done, costs relating to finance, construction and operational maintenance are all included. At the end of a contract, there is an obligation to hand the road back with a certain residual life. It varies on the asset type within it. For large structures, it is a very long life; for pavement, it is ten years. All of this is rolled up and that becomes the deal. Over the duration of the contract, that deal has within it a mechanism that is fixed to CPI. Whatever increase the latter allows is the maximum increase that can be brought about in terms of toll charges. Those are the mechanisms that are in place.