On 12 Mar, 00:24, Uncle Toby wrote:

Which is just my way of saying that the traditional UK meanness to
invest in 'frills' like decent bi-directional signalling is
short-sighted. I suspect that the economic cost of failures does not
enter the heads of the money men who fund our railways, as they
probably have been led, or prefer, *to believe that if things are
maintained 'properly' such things happen so infrequently that they can
be ignored.

The DLR doesn't have any lineside signals, so supporting bi-
directional
working is probably substantially cheaper than on most railways.

Ganesh