I live in New York City. The current way to pay for buses and subways is with a Metrocard. You can buy them at some stores and check cashing places, or at most subway stations. You can pay with cash or a card. Now, at great cost, they are introducing a ‘better’ system where you pay for your rides with a credit card or smart device. They are planning on getting completely rid of the Metrocards. Soon, they will be able to trace anyone’s movements.