On Tue, 22 Jul 2008 11:52:34 +0100,
Walter Briscoe wrote:

The (undocumented) 15 minute period is that you are charged for an in
zone journey if you enter and leave a station in 15 minutes.
If you enter and leave a station in longer than 15 minutes, you are
charged for an unfinished journey and an unstarted journey.

It's definitely longer (at least it was) at Watford Junction. I've been
there when there's been a "one under" at Harrow and Wealdstone, gone
home after half an hour and "only" been charged 1GBP.

Tim.


--
God said, "div D = rho, div B = 0, curl E = - @B/@t, curl H = J + @D/@t,"
and there was light.

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