Town of Maricá, Brazil, free system has 17,000 passengers per day, now adding 9 buses

 marica.rj.gov.br

Since 2013, when it was created, the EPT fleet has made over 15 million trips. Per day, the system carries 17 thousand passengers.

https://frepubtra.blogspot.com/2019/11/town-of-marica-brazil-free-system-has.html