Abstract: A remote-control movable bump for temporary traffic-control purpose includes a movable and combinable main body of trapezoid shape so as to define a slope on front and back side, a plurality of vertical slots formed spaced apart in one of the slopes, a shaft rotatably disposed in a center of the main body having a hexagon recess in one end and a protrudent rectangular recess on the other end engageable with a rectangular axis of an alternately rotated motor, a plurality of tipped blades integrated with the shaft and engaged within the vertical slots respectively and a remote sensor to actuate the motor which operates the shaft to rotate for lifting the tipped blade up for about 45°.