The grounded parts of 28/McGrath are already a limited access highway, from the 28/38/93 interchange to the intersection with Highland, and from the twin cities plaza into Boston. (28 is limited access all the way from the Fellsway; 38 is posted as a 35MPH, if I recall correctly, from Medford Center, which makes it defined as a limited access road as well. Although the nature of the road does significantly change at that interchange.)
Making the section between Highland ave and twin cities plaza a local, mixed-use road is not a realistic endeavor without adding additional capacity to I93, ma99, and/or US1, and (probably) the Green Line extension. Turning an artery into something else is far from as simple as taking out the overpass. A ground-level, limited access road like the rest of 28 is feasible, but not a local mixed-use.
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Date: 2012-05-31 03:59 pm (UTC)Making the section between Highland ave and twin cities plaza a local, mixed-use road is not a realistic endeavor without adding additional capacity to I93, ma99, and/or US1, and (probably) the Green Line extension. Turning an artery into something else is far from as simple as taking out the overpass. A ground-level, limited access road like the rest of 28 is feasible, but not a local mixed-use.