Results 22,181-22,200 of 26,162 for speaker:Kieran O'Donnell
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: TII's report is saying in layman's terms that reducing the speed on motorways drives people onto the national roads and reducing the speed on national roads drives people onto the regional roads.
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Did TII factor reducing the speeds and cascading down along into that?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Did TII not look at speed limits below that tier?.
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Has TII been able to measure the greenhouse gas emissions on the various forms of roads in Ireland, for instance, what percentage comes from motorways, national roads and regional roads? Does TII have that kind of empirical work done?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: That would obviously be a big factor as well.
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Is there a direct correlation from that figure to the greenhouse gas emissions generated by both or does a much higher percentage come from motorways?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: I will keep going. Appendix A of the report makes for very interesting reading. For the ordinary layperson out there, when we look at the different types of cars, we see that a small petrol car is most efficient when it is doing approximately 60 km/h. A medium-sized petrol car is best when it is doing approximately 70 km/h. A large petrol car, interestingly, is better when it is doing 80...
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: They are at 50 km/h. Then the small HGVs are better at 50 km/h. It is very interesting that when one goes down into the lower range, in many cases they are all very highly inefficient. With emissions, if traffic is free-flowing it is fine in many cases when travelling at low kilometres per hour. For example, a small petrol car is far more inefficient doing 20 km/h than 110 km/h, which is...
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: If we consider the small petrol car, which many people would have, it is far more inefficient when travelling below 50 km/h. It is the same at 50 km/h, but it is highly inefficient at 30 km/h. It is very inefficient at 20 km/h, and it is highly inefficient altogether at 10 km/h. It is best at 60 km/h. Going back to the question, the model is really built around getting free-flowing...
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: On average, cars are at their most efficient when travelling at between 50 km/h, 60 km/h and 70 km/h. Is that correct?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: They are very good at 50 km/h. They are very good around urban driving and are very suitable for that.
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: At 110 km/h, a small electric vehicle is not quite as bad as a small petrol car, but it is getting there. It is still better than a diesel combustion car or a petrol combustion car on the motorway. Am I right?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Can Mr. Brady explain to me, as an ordinary person, why those greenhouse gas emissions are higher than one would expect at the higher speeds?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: I am talking about PHEVs. What are they?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: So, they are still hybrids.
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Did TII carry out an analysis of electric-only cars?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Has TII any empirical work as to what those greenhouse gas emissions are at the various speeds? Can TII do that?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Has TII been able to do any empirical work on that?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: Could I ask that you would?
- Joint Oireachtas Committee on Transport, Tourism and Sport: Bus Coach Sector: Discussion (19 Oct 2022)
Kieran O'Donnell: That is something we would like to see. We are looking at appendix A, which is missing a huge element that we are looking to push in the context of electric cars. We would ask that TII would carry out this empirical work and come back to us on that.