Dr. Tadhg O'Mahony:

It is true to say that there is a cost. Again, it is a measure that could incentivise the use of public transport so it obviously has that plus. In terms of making political decisions, again, we need the kind of analysis that allows policymakers to make informed decisions knowing who this will benefit and by how much. All of these measures have different characters. They may be win-wins or have trade-offs. We need to consider that with cost being one of them. It is sensible to consider that. The Deputy's point that this is not just about cost is very important. It is very difficult to cost the impact in terms of loss of life from air pollution and road traffic accidents and the cost on the economy from the drag caused by congestion. It is the political process that needs to make those value-based decisions after we have appropriate analysis that can inform it.