What should drivers expect when they see this sign in a construction zone?

• Traffic will be moving quickly, and drivers should speed up.
• Traffic may be moving slower than usual due to construction work.
  Explanation:

  "The "Slow Traffic Ahead" sign is commonly used in construction zones to inform drivers that there is a construction site ahead and that traffic may be moving at a reduced speed."
• There is no change in traffic flow.
• Drivers should immediately stop their vehicle.