Post by Roland PerryPost by Graeme Wall"For customers still using paper Travelcard tickets, LU offers a
simple, zonal extension ticket valid for two hours from the time of
issue. This is a fraud prevention measure."
So just buy one of those at a TfL TVM before commencing the journey
to Chesham. On the way back, just buy a paper single ticket from
Chesham to Moor Park.
Can't find any recent information as to whether such extension tickets
still exist, the link is to a 2005 Q&A.
I have an idea they were scrapped because the scheme was so complicated
no-one understood it (or bought them).
Having had my memory jogged by the discussion, I think this was what
happened: they introduced the extension tickets for Oyster, but said
they had to be purchased at the time as travel, which many people found
both logistically difficult and making-no-sense.
However, being an Oyster add-on, the 2hr time limit must presumably be
that when purchasing it the Oyster back-office is told to do an
automatic touch-out because no-one is going to get out at (eg) Moor Park
and touch-out manually, then get back on the train.
And they shroud this in smoke and mirrors of "fraud protection" because
someone could buy such an extension, touch in Central London, be
touched-out automatically, then travel to an unmanned unbarried station
hundreds of miles away. But they don't want to give people ideas!!
The paper extension ticket probably has the same 2hr limit just because
of one-size-fits-all-ism.
--
Roland Perry