They put them up on a road that runs next to my complex. It's a good choice for me to use when coming back from a local mall, because it means I can make a right to get to my home instead of a left. A 40 Kmh limit. I found out the hard way, that they had installed speed bumps, when doing exactly what I outlined. This street is 2 lane and generally has cars parked along both sides. The signs and speed bumps were both occluded by parked cars until I was around a corner, where the first set were. I caught air.
