Vehicles driving over these do have to significantly slow down or otherwise experience a very jarring bump as they cross over the bumps. If you did that hardly, it might be pressure on front & back suspensions specially shock absorbers, bushes and bearings etc.
So, normally we should slow when passes the speed breaker to save our front suspension. But, in the meantime when we cross front wheels over the bump and press the accelerator and we feel it on back suspension, which is more harmful than the front
So we should go on through with slow/smooth speed until vehicle cross. Except then the SUVs.