This paper presents three types of humps/bumps commonly used in Ghana. They are Circular humps, speed bumps and trapezoidal humps. The vibrations of a quarter-car model are investigated theoretically across these humps/bumps to assess their effect on drivers and passengers. The study assumed elements of linear and nonlinear characteristics and the same height for all the humps/bumps. The velocity of the quarter-car is also assumed to be the same when crossing the profiles. The Method of Multiple Scales is used in solving the equations of motion and the steady-state solution is analyzed with the humps/bump inputs using the NDSolve ????????????????????? ???? Software. Then comparing emanated amplitude results show that the trapezoidal hump has the smallest level of amplitude, thus more stable and lower vibration effect followed by the speed bump and the circular hump in that order.
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