The monorail system would link the T's Blue Line Airport station to each of the Logan terminals and to the rental-car lot.

Objective is to relieve traffic congestion that's constantly worsening at Logan because of passenger growth, by enabling passengers to get to/from the airport via the T, with fast and easy access to any of the terminals.

Project might cost $1B and take 10 years to build.

Logan has needed a system like this almost since Day 1 - it's one of only a few major airports without one.