2021_Signaller
Member
There are obvious benefits to a digital railway (which is all they ever talk about), but there are also risks. The most obvious being the terrorism element. If your train service is run by computer, the computer and its safeties can be overridden by hackers and foreign state actors like China, Russia, Iran, North Korea sending 2 trains against one another on the same line for example. The only real defence to this is probably human drivers and human signallers spotting the dangers and stopping it. I don't see how any computer safety system would be adequate to manage this risk on a digital railway because of the scale of destruction that could be possible if it ever was hacked.i can see your point, and it is a possible aspiration of management. What doesn't help are mixed messages from senior management. in one breath saying that operations staff aren't affected by changes, but in the next breath stating they are pushing ahead with the Digital Railway concept - which would affect signalling roles.
When people talk about this dream of digital railways therefore I don't see that future as viable. I'm sure government would like to do it for cost and efficiency, but just one incident of a failure or a compromised system and the integrity of the whole network would be shot. Still these are arguments for a few decades time rather than the short or even medium term.