In message , at 11:50:25 on
Fri, 2 Mar 2012, Paul Scott remarked:
Point being, if Crossrail's going to Reading, then TfL will take Oyster
PAYG acceptance with it there - and the GWML operator will have to accept
Oyster PAYG to/from Reading. (Apart from anything else I'd be pretty sure
that DfT Rail would make this a franchise commitment.)

But what will the entry charge (max cash fare) have to rise to - and will it
have to be charged at every PAYG entry barrier? Could be beyond the
practical limit for the current charging model - but maybe OK with EMV
once it is in use...

Single to Reading is currently £20.60 peak, £16.40 off-peak.

Exactly, and what happens when you want to deduct £20.60 off a card
that's got £1 on it and only a £10 auto-topup enabled?
--
Roland Perry