Which sign alerts a driver to slow down for a sharp rise in the roadway?

The appropriate sign that alerts a driver to slow down for a sharp rise in the roadway is the bump warning sign. This sign indicates that the surface ahead may have an abrupt elevation change, requiring the driver to reduce speed to navigate it safely.

Understanding such signs is essential for maintaining appropriate speed, ensuring vehicle safety, and preventing damage to both the vehicle and the road. When drivers heed the warning associated with a bump sign, they can smoothly transition over the rise, minimizing the risk of losing control or causing wear on their vehicle.

The other options, while they may refer to different roadway conditions, do not specifically indicate a sharp rise. The steep grade sign would generally indicate a prolonged incline rather than a sudden rise. The sharp turn ahead sign warns of a curvature in the road rather than a change in elevation. Similarly, a maximum incline sign, if it existed, would inform drivers of a steep slope but would not specifically address a sharp rise in the roadway.