Rodovia Régis Bittencourt (official designation SP-230) is a section of the BR-116 that connects the cities of São Paulo and Curitiba, Brazil. It is considered one of the most dangerous highways of Brazil, due to the high number of accidents. Sometimes it is even nicknamed "Rodovia da Morte" (Death Highway). It also leads the number of ambiental accidents in the state of São Paulo. Curitiba is the capital of the Brazilian state of Paraná. Curitiba is Parana state's and southern Brazil's largest city and economy. According to the American magazine Reader's Digest, Curitiba is the best place to live in Brazil.