I noticed the shoddy paving from the City of Montreal in several areas recently. Look at the job on Côte St. Luc Road. Not only are there plenty of bumps but through the middle of the street there is this seam. If you drive in the areas on Van Horne where they have paved in the last few years, there are seams in the center as well.
Now look at how wide the seam is on Van Horne until Clark. Wide enough that you can get your foot stuck in it.