Kieran O'Donnell (Limerick City, Fine Gael) | Oireachtas source

I will quickly list the existing contracts. We have the M1, the M7, the M8, the M6, the N25, the N18, which is the Limerick tunnel, the M3 and the M4. They are all PPPs. My understanding is that the funding model of a PPP is typically based on it putting up the money and building the road. It is a design and build arrangement, in effect. The TII then comes with a model that, in some cases, involves risk sharing - the Limerick tunnel is one - and in other cases does not. The rate that can be charged is determined by an annual review based on the consumer price index, CPI.