What does this sign mean?

• There is a stop sign ahead within the mentioned distance.
• There is a pedestrian crossover ahead with the mentioned height.
• Vehicles longer than the mentioned length are not allowed.
• There is an underpass ahead with the mentioned height.
  Explanation:

  "This sign indicates that there is an underpass ahead with a maximum height clearance for vehicles. Vehicles taller than the height mentioned should not proceed and must find an alternative route to avoid potential collisions with the overhead structure."