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Tube challenge Oyster PAYG
On Jun 18, 6:54*pm, Roland Perry wrote: In message , at 02:44:08 on Thu, 18 Jun 2009, Mizter T remarked: Standalone validators can be set up in different ways - those within paid areas, such as the ones on the platform at Farringdon will (almost certainly) be set up in 'interchange mode' - if there is an open journey on the Oyster card, then touching on one of these provides a 'soft exit' from the system, i.e. it means that if that's that the journey will be regarded as resolved, however it also leaves the journey open should the passenger merely be interchanging and then travelling onwards. Note that at the moment this does *not* top-up the original journey time-limit - presently that stays at two and a half hours from the original touch-in to the system, though come September the whole system of calculating the maximum allowable time for a journey gets rather more sophisticated. Does the journey get resolved after the timeout (if you haven't touched elsewhere)? I guess it must, otherwise if you went from KGX to Farringdon on the Circle, touched, then went Farringdon to Brighton on a paper ticket you already had, you'd be charged for an unresolved journey. Yes - well, in effect yes, though there isn't actually a clock counting down the minutes buried in the Oyster card. In essence I think the card is left in a state whereby the journey *could* be continued. Nobody making a through PAYG journey who is merely interchanging at Farringdon need touch on the validator, but the design of the system sensibly assumes that people will even if they don't need to and so is designed to tolerate this. And, as I said earlier, in some cases in the near future passengers may specifically be requested to touch on such a validator within a paid-area so as to prove they went one way rather than another, thus enabling them to take advantage of the cheaper (i.e. non-zone 1) fare. |
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Tube challenge Oyster PAYG
Mizter T wrote:
Nobody making a through PAYG journey who is merely interchanging at Farringdon need touch on the validator, but the design of the system sensibly assumes that people will even if they don't need to and so is designed to tolerate this. And, as I said earlier, in some cases in the near future passengers may specifically be requested to touch on such a validator within a paid-area so as to prove they went one way rather than another, thus enabling them to take advantage of the cheaper (i.e. non-zone 1) fare. Prediction. Just after they announce that, someone will come along here and complain that it isn't on, because his movements are now being tracked more accurately by 'big brother' TfL... Paul S |
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