Rio has a very efficient taxi and uber service at a very reasonable price. Please note though that they only have 4 seats maximum. We have 2 metro stations within 10-15 minutes walk (Cantagalo and Siqueiro Campos). From either you can take a subway train to Barra/Ipanema or in the other direction to Centro/Maracana. There are lots of buses to all parts of the city and also a bike hire scheme. For tips or specific destinations just ask.