I was a dyed-in-the-wool hater of speed humps. Then a drunk teenager in our neighborhood got into his daddy's Corvette and did a Daytona 500 around our 'hood. He lost control, flew into a parked RV with an elderly couple sleeping inside, and killed them both instantly. The city installed speed humps within a month and now traffic flows at no more than 25 mph. The humps cause a minor but acceptable vertical acceleration, they eliminate speeding in what was otherwise a wide, straight street at moderate slope which enticed speeds of 35 to 40, and everybody in the neighborhood is very happy with them. If nothing else, they force "outlanders" to seek another route, which is fine by us.
So, what are the other choices? Design very narrow streets with lots of parking, very curvy streets where higher speeds are not likely, or some kind of speed modifications like humps or chicanes or the like. Personally, the humps are my preference in residential settings. Properly designed, one can drive them easily at 25 mph, ande spaced properly, no one accerlerates between them, and they have gaps in between to allow emergency vehilces to, essentially, avoid the interuption. As for flying motorcycles... drive safe like the rest of us.