Dundas is a selection of hard choices for an intown Station, seeing, as others have noted, so much of the line in the immediate Dundas areas is hard up against the escarpment, and the surrounding areas are housing. . You also have Spencers Creek at at one end and Borer's Creek at the other end providing significant additional challenges on and above the escarpment itself, as they cut deep valleys into the landscape. You might have to look westerly - out towards Weirs Lane, or easterly, towards Hopkins Corners and York Road (but there you are into Conservation Lands as well) . I think the only way to make use of the old Dundas station is to run some escalators (Billy Bishop style) down from the station to some point along Woodley Lane, but that would mean purchasing some or all of the Dundas Valley Golf and Curling Club. And curlers are a tough crowd.