In article .com,
Boltar writes
The Underground have long had backup safety procedures such as this in place
to work trains through sections safely in the event of signal failures. The
procedure described (trains travelling at very low speed until having passed
two known working signals) has been in place at least since the 1970s and
Well that certainly explains the delays. Is there any particular reason
for keeping
this absurd pantomime or is it just a case of the
thats-how-its-always-been-done
mentality?

Well, I suspect that the friends and relatives of those killed in the
various collisions [+] after trains tripped past signals[*] would have
preferred that it had been done this way for longer.
[*] For some reason a number of these were on the Central Line between
Leyton and Stratford.

[+] For example, on 1953-04-08 twelve passengers were killed in a
collision just in rear of signal A491, which had failed. The driver of
the rear train failed to control his speed after tripping past A489.

--
Clive D.W. Feather | Home:
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