Tazi Hupefi
Member
It probably doesn't make much difference. I think clearly they are doing something with ticket barrier data. Presumably there is enough information printed on a ticket to make it unique enough to identify and track?Submitted them personally. Also of relevance to the thread, it was a paper ticket, not a smartcard.
E.g. if ticket number 12345 is used at Kings Cross at 17:00, and then 12345 appears at Peterborough at 18:00, probably the same ticket, and you can then work out what train they most likely took.