Before Boston started the big dig, the city's highway system was in ruins. There were ugly metal highways that plagued the skyline of Boston. The new system of underground tunnels and raised highways with parks is a great idea because the city can now add a beautiful structure to its skyline (Zakim Bridge). The tax dollars were a very small part of the federal government's budget and the city of boston and the state of Massachusetts were saving money to do this project. It is true that inflation was a major factor in the construction of the project. Also the project is nearly finished and the leaks are being fixed by the cement companies. I do not live in Boston, I live in Bermuda, but i go to school in Boston. Whenever i drive through downtown and get to the other side of the city and i want to skip the traffic i always go through the tunnels and i'm able to skip nearly all of it. It really is a shame that there isn't the option of official underground highways although the method of building a the raised area then building the tunnel then lowering the area between the two tunnel entrances kinda works.
Sim City five hopefully will have the option of underground highways.
