The Bump sign indicates a sharp change in the profile of the road that is sufficiently abrupt that the bump is crossed at speeds 25% greater than the speed limit for that section of the road, it will cause one or more of the following conditions:

• a hazardous condition;
• considerable discomfort for passengers;
• a shifting of cargo; or
• deflection of a vehicle from its true course.
  

A supplementary sign tab may be used to indicate the distance to the bump. The Bump sign may also be used to indicate that the section of road ahead has numerous bumps. A supplementary tab sign may be used to indicate the length of the bumpy section.