On Mon, 25 Jun 2007, John Rowland wrote:

Christopher A.Lee wrote:
On Sun, 24 Jun 2007 14:32:52 GMT, wrote:

My normal experience of Tube trains going through temporarily closed
stations is that they may slow to 5-10 miles, but they don't stop. I
guess that they are similar to draw up signals in that they will clear
if approached at a certain speed, assuming that there is no train
ahead of the one in the station.

I suspect the approach control signals are still there so they have to
slow for them.

It's actually to do with the lengths of the signal overlaps on the exit
from the station. A train departing a closed station at full speed can
crash into another train without being stopped by the signalling. A
train departing the station having stopped, or crawled, can't.

Does this mean that, on the rare occasions when one of its stations is
closed, the DLR does not suffer from this problem?

tom

--
.... the gripping first chapter, which literally grips you because it's
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