This video on signalling has just been published by the UIC:
And, as they say:
Signalling is an essential cornerstone of the railway system
Bit different to this:
Or even this:
And even in the UK there is ‘new kid on the block’ (pardon the pun!), it is the “digital railway” – on the official website, this is what they say that this new technology for train control and signalling will provide:
“Digital Railway aims to deliver the benefits of digital signalling and train control more quickly than current plans, deploying proven technology in a way that maximises economic benefit to the UK.”
Railway Matters 