especially after long events, drunk revelers could spoil the fun of anyone they come across - so it is imperative that all fight be avoided, and provocations ignored.

the one number to remember in case of emergency is 190, that can be called via any pay phone and gets the police.

this app for i-phones, called blocos do rio, shows a complete schedule of all blocks in rio de janeiro, by date, location, and even theme. 

The o globo carnival application has become one of the most popular tool for rio's street carnival - the application provides real-time news and schedules of all major street blocks.