What size are you <| sep |> The state historically has paid for the T . Over the last ~ 10 yrs and especially since Baker has been in office , the state has made the T less of a priority . These towns are saying the GLX is so important that they ' ll foot the cost for it . But it does seem unfair as Newton , Brookline , South Boston , . got their GreenRedsilver lines paid for by the state . It also sets a bad precedence which is that the state is likely to now always ask cities and towns to chip in for T projects . It ' s partly driven by politics because voters who live outside of 495 and never use it the ask why they have to pay for it . The whole thing is particularly frustrating because the big dig was supposed to be an environmental project and have significant components of public transit , including the GLX . That ' s how it received the federal funding it did . Somehow all of the roads got built and the two big public transit projects got watered way into a sad bus that pretends to be a rail line and a project without funding .