In Quebec ther eis a law that bicycles must use a bike path if it goes alongside a road. However I consider that if there are no signs prohibiting roller bladers and peds, it is a multi-use path, and this particular section of the law does not apply. I have never had to make this point in a court. I often ride a 4 lane road (WOL) with 45 mph traffic without being hassled by cars. There isnt an adjacent bike path but it is much better paved than other streets nearby.