In message , at 17:06:32 on
Mon, 8 Sep 2014, Paul Corfield remarked:
Did you have to sit down and rest due to the shock of it working? ;-)

Thanks for the update btw.

I was a little surprised that it all works. I wonder whether RPIs will be able to check the card..

hmm - very good question. I hadn't thought about that but these
seismic changes in card acceptance [1] do present some interesting
revenue protection issues for TfL and the TOCs. I'm not aware that
new readers have been procured but I don't use rail services very
often these days so may have missed some changes.

One of the problems with one-TOC ITSO cards is their lack of
interavailability with other operators on the same route which people
take for granted with paper tickets.

I haven't seen the T&C for using Contactless cards on TfL (and I bet
neither have 99.99% of the people about to be using it). One way to do
revenue protection (as long as the T&C allow it) is to swipe the card
the same way an entry/exit barrier does, and then use the overnight
back-office system to decide to either ignore it as redundant [when
someone has been good] or use it to charge a penalty fare [when you
suspect they haven't].

Inevitably there will be false positives [a penalty fare charged when
not warranted] which should make a good story in the next day's Evening
Standard. Assuming that anyone notices, which I'm sure TfL will be
hoping they won't.
--
Roland Perry