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Old November 30th 06, 09:06 PM posted to uk.transport.london
Olof Lagerkvist Olof Lagerkvist is offline
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First recorded activity at LondonBanter: Aug 2006
Posts: 136
Default Oyster PAYG Island Gardens via Bank to Liverpool Street

Paul Corfield wrote:

Okay, I can (and most times do) take the 'one' to Stratford and then DLR
from there, PAYG is valid on that route too, but in that case I have
found out that I have to validate at Stratford too because otherwise the
DLR validator at CW tell me it is an entry when I exit there so I don't
think that is the possible not-via-zone-1 route they are thinking about
here.



I assume you validate "in" at Tottenham Hale in your example?


Yes.

You then
validate "in" again at Stratford for DLR and then "out" at Canary Wharf?


Yes, but there is always a question about what is a correct "in" a
Stratford in this case. When I touch the DLR validator it seems to exit
the 'one' journey and enter a DLR journey correctly and it works
correctly as an exit later at Canary Wharf. But if I do not validate at
all at Stratford, or only on the 'one' validator, it does not register
an exit but instead an entry at Wharf.

DLR validators can not possibly require a DLR touch-in in all cases for
a DLR touch-out to work correctly, can they? But if so, that would
explain this. But then again there must be some exceptions because it is
still not the same logic as used at Bank for instance because it is
possible to touche-in a tube journey, change to DLR at Bank without
validating and then touch-out at Canary Wharf.

For some reason I have never done the opposit, DLR to 'one' at
Stratford. It would be interesting to see what the 'one' validator says
at Stratford if I touch-in on DLR at Canary Wharf and not touch-out on
the DLR validator at Stratford but then touch the 'one' validator there.

I've not investigated the north side of Stratford Station - are there
validators on or near the "one" platforms for trains to Tottenham Hale
(and north thereof)?


Yes, but they only seem to exit the 'one' journey, not start/continue a
DLR journey.

If so, a very interesting set of logic at work there.


Yes, I don't really get how it works. But it is clearly different from
the logic at Bank for example. But Stratford is not possible to compare
to anything else because there are no more places where it is possible
to change from NR PAYG to DLR PAYG (at least not any I can think of
now). On other NR-DLR interchange stations PAYG is not valid on NR.

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Olof Lagerkvist
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