The most important characteristic of the Metro system is that it triggers positive social and economic change by revitalizing the poorest and least-safe communities (favelas) along the city’s mountainsides.
Ang pinaka-mahalagang katangian ng sistema ng Metro ay na-trigger ito positibong panlipunan at pang-ekonomiyang pagbabago sa pamamagitan ng revitalizing ang pinakamahihirap at hindi bababa sa-safe na mga komunidad (favelas) kasama mountainsides ng lungsod.