42°23′19″N 71°07′10″W / 42.3886°N 71.1194°W
Porter Square is a neighborhood in Cambridge and Somerville, Massachusetts, located around the intersection of Massachusetts Avenue and Somerville Avenue, between Harvard and Davis Squares. The Porter Square station serves both the MBTA Red Line and the Commuter Rail Fitchburg Line. A major part of the Lesley University campus is located within the Porter Square area.
In 2004–06 the principal intersection, including the area adjacent to the shopping center, underwent extensive construction both to improve access for vehicles, pedestrians, bicyclists, and mass transit users, and to improve drainage and storm water conditions. The artist Toshihiro Katayama[1] of Harvard University, in conjunction with the landscape architect Cynthia Smith,[2] designed a new visual look for the new circulation design, including contrasting light and dark concrete paving, stone walls and boulders.[3]