sentences:  Construction of the most recently opened segment, connecting the Box Grove Bypass to the interchange with Highway 407, began in 2009.It opened after several delays in 2012 and included a realignment of 14th Avenue.Donald Cousens Parkway and a planned connection with Morningside Avenue in Toronto form an "East Metro Transportation Corridor", originally envisioned by the province in the 1970s as a six lane municipal expressway.