Trying to find where you got these.. but just to point out something here, that study is blatantly wrong.
Those are houses, not "industrial/light employment".
https://www.google.ca/maps/@43.6656617,-79.459715,3a,75y,185.92h,89.7t/data=!3m6!1e1!3m4!1sIV0iIXjEO3AGVfeip6xSVg!2e0!7i13312!8i6656