77002 wrote:

Fast forward to the Jubilee Line extension: This one was much less
well planned, but did manage provide a useful route with some
Useful until it heads of to stratford pointlessly duplicating the DLR.

It provides a direct link from east to south London, starting from east
London's biggest interchange station. It provides much needed pressure
relief for the DLR. It regularly fills up before it first hits the
Thames.
How is that not useful?

A role which previously the North London line filled. The Jubilee
Line is an expensive replacement. By now the North London Line to
Docklands would have been an Overground Link.

The North London Line in that part of town was okay if you wanted to go to
north London and if you could bear the infrequent service it was fine for
Silvertown and North Woolwich. But it was utterly useless for getting from
Stratford/West Ham/Canning Town to places south of the river. The
development in the docks was not adequately served - even three car DLR
trains are still slow (and the Waterloo & City heaving at the other end) and
no great substitute for a proper tube lin to the centre.

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