On 25 Oct, 07:56, "Mizter T" wrote:
"SamB" wrote:
Hi all

In the near future, I am intending to make a journey from Brockley to
East Croydon, to meet a friend coming from Gatwick Airport, and then
bringing him back to Brockley. How do I do this with Oyster?

Do I just exit at East Croydon, then immediately enter again? Will
this give me two separate journeys, or will I confuse it with an OOSI?

There's no OSI at East Croydon, so no possibility of that coming into play -
just exit at East Croydon and then re-enter.

(Also worth noting that OSIs don't generally apply when exiting and then
re-entering the same station/ gateline - e.g. if one were to exit Euston
tube, then re-enter, that would start a new journey - though I'm not sure
how things are configured at say Victoria, London Bridge, Liverpool Street
or other NR termini stations, where one could concievably exit, circulate
and then re-enter as part of an overall rail journey.)

And what would happen if I touched in at Brockley, then did nothing
else before touching out at Brockley an hour later?

If one was to enter Brockley then exit it before the journey timed out, it'd
be charged as a Brockley to Brockley (z2 to z2) journey, though I think it
might understandably be regarded as somewhat irregular if one was to meet a
gripper who was doing a more through check.

Stations are usually not set to interchange with themselves.

However, prior to planned engineering works or during unplanned
disruption, stations can be set for emergency OSI. This means that
the interchange with all stations, including themselves. The idea is
that users can travel A to B EOSI, rail replacement bus (without
having to validate Oyster), then C-D. They are charged a single fare
from A-D (provided A-D does not exceed the max journey time). Also
allows people to exit and reenter different gatelines at the same Tube
station during escalator work etc without paying for two journeys.
Unfortunately, if you are making a return journey, the two legs are
linked when you reenter the EOSI station. When you out, same station
entry exit programming takes over. This is why some journeys are
overcharged. An automated refund system then runs and sends a refund
a station gateline a few days later.