https://youtu.be/PRGFF5aZjwI?si=aT3a3nUV8y21epCE Bus-Metro Line Shelters for 'Boavista-Império / Álvaro Siza Vieira I was invited to this project by Metro do Porto and, initially, I did not accept because I understood that the basic layout would leave the avenue with only one lane for automobiles and I disagreed with the proposal for a roundabout at the junction of Av. Marechal Gomes da Cost..