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Why do doubles and triples need extra caution and extra time at railroad crossings?
- A.They are longer and slower to accelerate, so they take much more time to start and clear the tracks completely
- B.Doubles are legally required to stop twice at each crossing
- C.Trains give doubles a shorter warning time
- D.Their extra trailers block the crossing signals from view
Correct answer
A. They are longer and slower to accelerate, so they take much more time to start and clear the tracks completely
Why
Clearing time is the whole problem: a long set starting from a stop needs many seconds before its last trailer is off the rails. The driver must be certain the way is clear and the space beyond is sufficient before starting across.
Manual topic: Combination Vehicles - Railroad Crossings · From the Combination Vehicles practice bank (CV-186).