Can I thank Alun Davies for his contribution, his questions and the important points that he's made? If I could just pick up on the issue of investment and the model that's adopted by the UK Government through the Treasury Green Book, essentially, a calculation based on the benefit-cost ratio will always lead to investment in those areas that are already wealthy and where there are large numbers of wealthy people, because you are always able to calculate a better return if you can deliver for those communities. And as a consequence, it's no wonder that people in more deprived communities, communities that already face severe challenges, have felt left behind in recent decades. It's my view that that Treasury Green Book, that set of rules that determines how money is invested by the UK Government, needs to be reformed, and it's something that I would very much welcome. It's something that is in the hands of existing Ministers, it's something that could be in the hands of a future Government, but I think it needs to be done in order to rebalance the UK economy. 

Alun Davies also makes the important point about the role that electric trains have in improving journey times. Electric trains accelerate quicker and therefore can lead to reduced dwell time at stations, but they can also lead to reduced journey times between stations. We're going to be utilising tri-mode and bi-mode trains on the Wales and borders franchise network. It could be in the future that we adopt hydrogen-powered trains as well, and it's my hope that, as we deliver the global rail centre of excellence in south Wales, we will see hydrogen-powered trains tested for mass roll-out in years to come.

We are, indeed, working to deliver four trains per hour on the Ebbw line by 2024, but it is my hope that if at all possible we can bring that date forward, we will bring that date forward. Of course, if there was the ability to draw down the amount of money that we believe we should be entitled to for rail infrastructure investment, we would see additional stations, including potentially at Abertillery. But, I would not wish to adopt the same formula that the UK Government adopts. I wish to adopt an approach that leads to wealth being more fairly distributed, and opportunity to create wealth distributed more fairly across Wales.

In terms of the Ebbw line not being classed as a core Valleys line, I think it makes no sense to anybody that it's not part of that defined core Valleys line asset. The reason, of course, is because services have to run on the south Wales main line, which is not devolved. But, to not categorise the Ebbw Vale line as a core Valleys line, I'm afraid, sometimes gives the impression that it is a secondary service line. It is not. It is absolutely integral to our vision for fully integrated public transport and it is absolutely our intention to deliver metro services on the Ebbw line, and, in doing so, I think redefine it as part of the core Valleys lines area, even if we don't yet have responsibility for the full component of the line that trains currently use.

In terms of the Williams timetable, it's not been set by the Welsh Government. We have very little influence over when Keith Williams reports, and how and when the UK Government responds, but I will inform Members of any progress and any developments. If possible, I'll do that ahead of any announcements that are made by Keith Williams or the UK Government.

Llywydd, I meant to say in response to the first contributor that Transport for Wales officials will be here tomorrow, between 11.00 a.m. and 2.00 p.m., to answer any questions concerning current services.