21 Mar Traffic tunnels in Brazil
Posted at 13:06h
in
LDA Audio Tech has supplied the public address and voice evacuation systems for three major traffic tunnels in Brazil.
These are the Morro Agudo tunnel (1,041 metres) and the Morro do Formigão tunnel (530 metres in main gallery), both in the state of Santa Catarina, and the Morro Alto tunnel (1,841 metres each gallery), located in the state of Rio Grande do Sul.