(23 Jul 2019, 6:58 pm)Rob44 wrote Dan - do passengers have a choice whether to consent to their data being used? Its fare enough if you use cash to buy it but when using a debit/credit card you (go north east) know the persons details and which areas they've visited ald day? That's why i though all purple day tickets would have the same QR code so ones personal data couldn't be tracked?
That's easily circumvented by data anonymisation. It's standard protocol for all this sort of data gathering, eg that done by traffic cameras.