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Why is judging a train's speed and distance so unreliable?
- A.Trains travel at a constant 20 mph everywhere
- B.Train headlights make them look closer than they are
- C.Trains are much larger than road vehicles, which makes them appear to be moving slower and to be farther away than they really are
- D.Drivers can judge trains accurately with practice
Correct answer
C. Trains are much larger than road vehicles, which makes them appear to be moving slower and to be farther away than they really are
Why
The size illusion fools even experienced drivers, and trains reach the crossing far sooner than expected. The safe rule is simple: if a train is visible and approaching, wait, whatever your estimate says.
Manual topic: Combination Vehicles - Railroad Crossings · From the Combination Vehicles practice bank (CV-191).