The T fare has indeed gone up to an even dollar in the past few weeks. And be forewarned about the Blue line. Construction in the Big Dig tunnel at State Street has caused the weekend closure of the Blue Line between Maverick and State. Worst of all, it is often un-announced at Airport station. You have to exit at Maverick and wait for a bus, wait in a bus to traverse the tunnel, and wait as the bus navigates to the State station.