Paul Corfield wrote:

(snip)

On the DLR the computers run the trains so that Stratford / Beckton
trains connect effortlessly at Poplar - very helpful and that shows you
what can be achieved with a modern and reliable system. It wasn't always
like that in the early days of the current signalling system!

There may have been signalling but there wasn't much of a system!

The image of the DLR has changed so much. I remember it being
continually referred to as the 'Toytown Railway' in it's first few
halting years.