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The Helsinki metropolitan area public transit system "HSL" used to be like that. Bus passes were first mifare and the DESfire after some upgrades, but the r
by RF_Savage 2y ago
The Helsinki metropolitan area public transit system "HSL" used to be like that.
Bus passes were first mifare and the DESfire after some upgrades, but the readers in the busses contained the transactions and worked offline.
If they got filled up the the standard practice was free fares. :)