Tendering starts for Porto Alegre metro in Brazil September 12, 2012 | Latin America News Bidders have been asked to present their proposals by November 12, 2012 for constructing a 14.8-km metro line in the city of Porto Alegre, following the launch of tendering on September 10, 2012. &nbs... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password