Dr. Brian Caulfield:

It is a great question and I agree with my two co-witnesses. Public transport is where we should be putting the lion's share of our money. Certain public transport projects in the greater Dublin area have made sense for more than 20 years and have been at various stages of planning over that period. Much of it would go there.

We need to consider how we use public transport in regional cities. We can consider many good examples from around the world. We just need to go up the road to look at the glider system in Belfast. A trial of that type of bus in Cork, Limerick or in any of the cities would go down well and would change how people perceived bus transport in regional cities.

I would then spend money on electric cars. Recent research, which I conducted in Trinity, considered areas of the country in forced car ownership. People in those areas are travelling long distances in more polluting vehicles. The subsidies given to somebody living near high quality public transport should be different from somebody living in rural Ireland. I would put money into that as well.