When the plans for rebuilding the Turcot interchange were unveiled back in 2010, they included an artist’s rendering of an elevated park over Highway 20: the Dalle Parc. It was meant to serve as a pedestrian and cyclist path connecting NDG and the Sud-Ouest, but it was never built. We look at whether this project will ever see the light and at the challenges of retrofitting Montreal's landscape to make it more walkable and bikeable.