On 2 Apr, 14:20, "Tim Roll-Pickering"
wrote:

Sarah Brown wrote:

(snip)

I tell her I've already touched out, and she asks where I came from,
and I tell her. She then says I have to touch out again, "to end my
journey", and buy a ticket.

Another problem is that a lot of TfL staff don't seem to know how to
correctly use Oyster at complicated stations like Stratford. There are
similar problems with the DLR - I've never been sure if one has to touch in
twice if starting at Stratford, or how to correctly change from a ticketed
mainline service to the DLR on Oyster. "Always touch in, always touch out"
becomes a meaningless mantra if you don't know which is which.

I don't think you should worry about it, I really don't. My impression
is that the system is designed to be tolerant of people touching-in or
out more than once at stations such as Stratford. I haven't tested
this thesis to destruction yet, but I certainly have tested it -
touching in or out twice at stations such as Highbury & Islington that
have gates and standalone Oyster readers within the gateline (aimed at
interchange passengers coming off/heading to National Rail services).

Some day I'll put my money where my mouth is and go to Stratford and
touch my Oyster everywhere to see just how tolerant the system really
is - but all most passengers are ever going to do is touch-in/out
twice, once at the gates and again on the DLR or Central line
platforms. I've done this to no ill effect, and if you stand close by
and watch the number of people who use these standalone readers for
just a short while it seems very clear (to me at least) that they
aren't all interchanging to/from National Rail services.