Rio de Janeiro's rapid population growth has led to a severe housing shortage. Millions of people had to build their homes from crowbar materials (wood, metals, sheet metal, a mixture of clay and mud). The type of temporary homes known as favelas in Brazil. In the 1970s the number of favelas increased, due to the migration of people from rural areas to cities in search of job opportunities. Even if favelas full of poverty, violence and social exclusion. The living conditions of the residents are the worst. As the image shows, favelas are located on hills and suffer from landslides during heavy rains. (www.joinrio.com) Undoubtedly, the existence of favelas influences migration: there is no sewage system, there is no water, electricity, diseases are widespread and many people are unemployed. So they have to escape