Buenos Aires was founded next to the river as a city port to export and import different goods. Commerce is still very important and the port is the connection with other civilizations. As we have seen in the last post, nowadays the river works also as a distraction and a place of disconnection for the citizens of Buenos Aires.
We were used to pay tickets with coins because the ticket used to cost less than $1 (argentine peso), but nowadays coins are useless because of the devaluation, the government decided to install a new system to pay transportation in the city. This is when the SUBE card was invented, a card to pay buses, subways, trains and even highway tolls.