When you encounter a train at a railway crossing, why should you be cautious about misjudging its speed and distance?

• Trains are actually slower than they appear due to their size.
• Trains often make sudden stops at crossings.
• Trains can change tracks unexpectedly.
• Trains appear to be moving slower than they actually are because of their large size.
  Explanation:

  "

  When you encounter a train at a railway crossing, you should be cautious about misjudging its speed and distance because trains appear to be moving slower than they actually are due to their large size. This optical illusion can lead to dangerous situations if you underestimate how quickly the train is approaching.

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