Passenger Railway Services (Public Ownership) Bill

Debate between Baroness Brinton and Lord Moylan

Committee stage
Wednesday 23rd October 2024 Lords Chamber

[Lord Moylan (Con)]

My Lords, I am not accustomed to making speeches on technological matters but, on this occasion, I feel I have some modest qualifications for doing so—although I must say in advance that I do so with a degree of trepidation, because nearly everything I know about driverless trains I have been taught by the Minister. I therefore sit in the uncomfortable position of being subject to not only his correction but his immediate correction the moment I sit down and he comes to respond.

It is possible to get oneself into a tizz about these things called driverless trains when what one is in fact discussing is signalling. When I first got involved in railways, I thought that signalling was a system where arms went up and down and red and green lights flashed, but that is all in the past. Modern signalling is, in effect, a huge computer brain that fundamentally drives the trains. It tells the trains when to go, when to stop and how fast to go in between. Its purpose is to maintain a safe distance between trains as they travel, taking account of the speed and the track’s condition and nature. It is specific to the track.

Although the noble Lord, Lord Snape, will find counterexamples—I am sure that he is right to do so—broadly speaking, it is safer to have the train driven by this great controlling brain than it is to have it driven by a human being. A large number of historical train accidents have been caused by driver inattentiveness. Indeed, in Committee on Monday, it was the noble Lord, Lord Snape, I think—it may have been another noble Lord—who drew attention to one cause of such accidents, driver tiredness, whereas the machine does not get tired. It knows what it is doing. It knows where every train is going and where it is in relation to every other.

The noble Baroness, Lady Brinton, spoke of the person who remotely drives the train. There is not a person remotely driving the train; it is the great computer brain.

[Baroness Brinton (LD)]

From my experience on the then Automated Vehicles Bill, there is a person who watches various vehicles driving. If there is an issue, they will intervene. That is how reassurance was given, so it is not left only to the computer.

[Lord Moylan (Con)]

My Lords, I was going to come to a point relating to that. I am sure that what the noble Baroness said is absolutely correct in relation to automated vehicles but, like automated planes, automated vehicles are very different from automated trains. An automated plane—indeed, any plane—must be 110% safe and known to be safe before it takes off, because if it develops a problem when it is in the air there is nothing you can do about it.

With an automated train, the approach to safety is totally different. Safety is based on fail-safe devices. If the computer brain sees that something is wrong—for example, if it loses a train on the system and does not know where it is—everything is brought to a stop. That is the solution. That is how you guarantee the safety of not only that train but the trains close to it. The trains further down the line are brought to a stop, which is of course not remotely possible when you try to apply a different technology to the air and to automated vehicles. That is the sort of system we are talking about. The level of automation that can be achieved is graded. Level 3 automation, as it is known, requires a driver to be present, although the driver is not actually driving the train.

My noble friend Lord Hamilton of Epsom referred to the Docklands Light Railway coming into operation in the 1990s. I think I am correct—here, I very much worry that I might have got this wrong and that the Minister will correct me—in saying that the Victoria line, which was introduced in the 1960s, was introduced with automated signalling at level 4. There was a driver in the cab, but they would arrive in stations reading the newspapers. This so disconcerted passengers that a stop had to be put to it and they were told that they could not read the newspaper while they were sitting in the cab, at least not while they were in or coming into a station.

So we know perfectly well that this can be done safely. We know that we can run trains much closer together and provide greater capacity if we have an automated system, because it is safer. That is why, if you go down to the Victoria line today—it benefits not from a 1960s signalling system but from a brand-new signalling system installed in the last few years—you will see the trains coming into the station so fast that the previous one hardly has time to get out before the next one arrives. If you had a driver driving that train, the headways between them would have to be much greater. By comparison, on the Piccadilly line, which, as I have mentioned on several occasions, has a signalling system so decrepit that it is hardly a signalling system at all, you can see how slowly the trains come into the stations. The driver has to conduct himself with great caution whereas, with automated signalling, they will come in faster and stop in exactly the right place. They do not have to make the human judgment that the driver has to make about stopping exactly on his mark; that is what he is meant to do, but it takes time.

I think that everybody who is involved in railways wants to head towards that; it is the direction we want to go in. The question then arises: if you have driverless trains with literally no driver in the cab, how are you going to handle the customers? First, as some people have said, there will be trepidation on the part of customers. I think that will be overcome. Even I have a degree of trepidation; I took some flights over the summer. Not many people realise that the pilot is already pretty redundant in most of the aeroplanes they are flying in. Conscious of this, I was thinking about it when I took off the other day, so trepidation is a factor.

The noble Baroness, Lady Brinton, makes a much more serious point perhaps, which is that services are required for passengers in the train and in the event of an emergency. As I said, an emergency is likely to result in the train being stopped in the middle of nowhere, and possibly stopped long enough that passengers have to be disembarked. Who is going to do all that? Of course the train has to have people on it; it has to have staff on it. Although the Docklands Light Railway has no driver—which, as noble Lords probably know, allows children to sit up front and even adults to fulfil their childhood fantasies by sitting up front—even it has a member of staff on it to deal with the sort of eventualities referred to by the noble Baroness.

There is a sort of fantasy here. I depart slightly from remarks made by some of my Conservative colleagues—not here in your Lordships’ House but in other fora—that this will somehow free the railways from dependency on staff and, therefore, on the unions. It will not, of course, because those staff will have to be present even if they are not in the cab. They will probably be members of the RMT, too, which is not exactly freeing yourself from the trammels of the trades unions.

The general intention behind my noble friend Lord Hamilton’s amendment is an extremely good one. We should be moving, as far as we can, from level 3 to level 4. Over time, it is an inevitability, and the costs involved in doing so will have to be found. The increase in both capacity and safety that will arise from doing so will probably be worth 10 HS2s or HS3s or whatever we provide on the existing lines.

Knowing the Government’s intentions on this will be extremely helpful. Knowing how it will be afforded and prioritised in an entirely nationalised system is something that we would all like to know. I suspect, as on previous occasions, that the answer from the Minister will be that we will have to wait, that he is not going to tell us, that this is a very narrow, technical Bill, that all the goodies are coming down the track in 18 months’ time, and everything else. I hope he is taking account of the fact that the Committee is very concerned about this—that technological change has to be at the heart of the modernisation of the railways and that the Government are going to find the investment capacity to do so. It is a matter of priority and money. Can he tell us about it, please, when he stands up?