Still think a combination of both is best. With my previously mentioned 2km trek to the gate, if they added more speed bumps I'd have to move somewhere else, or buy a hovercraft or something....
there are lots of ways to do speed bumps though, i agree many of them are annoying. i prefer the larger ones that allow you to drive over relatively easy at low speeds, but nail you if you try speed over it, its just there to keep the speed down, not stop you. some are just harsh no matter how you go over it, poorly designed. i suppose the different ride heights and lengths make it difficult to please everyone.
for pure safety i would request a speed bump at a location any day. its why we see them in front of schools and old age homes etc..
to penalize someone a speed camera is picture perfect.