Not sure what everyone here thinks about the Transit Matters folks, but they frequently contribute to Commonwealth Magazine with various ideas on how to improve the MBTA system. One of them, Ari Ofsevit, recently published a proposal for the Red-Blue Line Connector. He suggests that the Blue Line not stop at Charles, but continue north of the Longfellow under the Charles River to the Volpe Site in Kendall: https://commonwealthmagazine.org/opinio ... onnection/
He gives his reasons in the article, and it would require coordination with MIT as the owners of the Volpe redevelopment site to make it work. I remember past mentions in this thread (or somewhere within the forum) that any BL connection to Charles would require a decision to locate the station around the Longfellow supports either toward the north or the south. The point of which would then allow further expansion toward Cambridge/Somerville if pointed north, or Back Bay/West if pointed south, in addition to the necessary safety, storage, etc. requirements with the closeness of the bridge and all that. If it is technically feasible, however, it would offer an additional heavy rail connection to an area that is critically transit-starved and would open up tremendous expansion possibilities with the short distance from Volpe to the Grand Junction ROW. It would also relieve what would be a tremendous chokepoint at Charles if the BL stopped there to get folks over the bridge to Kendall/points north on the RL.
I think this is the sort of forward thinking proposal that is clearly lacking at the MBTA and with our political leaders in MA toward the MBTA system. Of course all the stuff about paying for these projects, etc., etc. is yet to be determined, but the FMCB's work, if it survives past 2020, must find it eventually necessary to pivot from cost-control/fixing what's there now to some sort of expansionary mindset with additional funding sources to address the critically deficient aspects of the system as a whole.
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