Magstripes tend to work not so well when you have the ticket in your pocket for a couple days, printed codes involve people futzing with cameras. You can use a sort of card ingestion system to line up a QR code or the like... but those things are complicated and break down a lot! You end up needing staff to constantly be opening it and unclogging it. This works alright if you have like 6 turnstiles, less so when you have 2 or 3.
Obviously you can work with those models anyways, and plenty of transportation networks do! But if your rush hour involves moving a million+ people, you really do need this stuff to go fast.
> Magstripes tend to work not so well when you have the ticket in your pocket for a couple days
How very true... SWIPE CARD AGAIN AT THIS TURNSTILE in glowing turqouise-ish dot matrix letters will be forever etched into my brain long after the Metrocard is finally gone.
Magstripes tend to work not so well when you have the ticket in your pocket for a couple days, printed codes involve people futzing with cameras. You can use a sort of card ingestion system to line up a QR code or the like... but those things are complicated and break down a lot! You end up needing staff to constantly be opening it and unclogging it. This works alright if you have like 6 turnstiles, less so when you have 2 or 3.
Obviously you can work with those models anyways, and plenty of transportation networks do! But if your rush hour involves moving a million+ people, you really do need this stuff to go fast.