On 10 Sep, 15:04, Roland Perry wrote:
In message
, at
04:44:08 on Fri, 10 Sep 2010, Alan Ben It
remarked:

Surely it was still failsafe? *No trains were signalled to collide with
each other.

Yes they were. One train was on the line working in the wrong
direction.

And what makes you think the train coming towards it had not been
stopped as a result of the erroneous train occupying a track circuit (in
that sense "ahead of the correctly routed train")?

Just curious; I haven't seen this detail discussed, have you?

The question I hinted at way back was whether there would be any
signalling or tripping affecting the wrong-way train. Obviously,
being on the wrong track was something that the driver was likely to
notice, but would the right-way train, stopped by a red light and
occupying the track ahead, make any difference?