furthermore, road construction brought more traffic through the neighborhood - the construction of the tunnel santa barbara, built to connect catumbi and laranjeiras allowed direct and fast access to the zona sul (south zone), which accelerated the demographic change.

the implementation of the santa barbara tunnel is believed to have contributed to the growth of favelas along the roadway of catumbi, as it essentially transformed these historic neighborhoods into thouroughfares - many studies and a large bodie of research was conducted, regarding the phenomenon of the sudden influx of homelessness in the streets of catumbi.