the initiative minha casa minha vida, (my house my life), aimed at building 1,000,000 new homes for low-income people - more details on this program can be seen on this link..

integrating the favelas into the city is the goal of the programa favela-bairro (favela to neighborhood project) - coordinated by city hall and municipal housing, and financed by the inter-american development bank - idb, this is one of the most important such programs in rio. 

the favela-bairro project implements urban infrastructure, services, amenities and social policies in many communities and is aimed at integrating favelas into the city as proper neighborhoods.

an official paper detailing the favela-bairro project can be read on this link, while this link shows an architectural study by frederic druot proposing a restructuring in rocinha .