Rio de Janeiro is ranked as the 5th Latin-American Smart City and it took the first place in the last national rank. Public Transportation is a big challenge for any city. The BRT project was created in Brazil in 1974. It has already been replicated in 189 cities around the world and serves more than 31 million passengers per day.
You can find more info about this project in the following link.
http://www.smartscities.com/en/cities/753-rio-smart-mobility
