On Tue, 08 Mar 2005 00:05:00 +0000, Michael Hoffman
wrote:

Robin Mayes wrote:
[Michael Hoffman]:

As to why they are used, I guess it's either to divert flows in the
peaks to cope with the numbers or because some routes are closed at
certain times, e.g. an exit closed after 23:00.

Interesting guess. Does anyone know?
Correct guess.

Can you give any examples of where I would see this in action then? I'm
particularly interested in the diverted flows during the peaks aspect.

London Bridge currently has diveted flow during the peaks, but I don't
know offhand if they're using switchable signs.

On Tue, 08 Mar 2005 01:32:22 -0000, "James Farrar"
wrote:

London Bridge currently has diveted flow during the peaks, but I don't
know offhand if they're using switchable signs.

Rotating signs, as I recall. No idea if they're manual or automatic,
mind.

Neil

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