If you're approaching a railway crossing at which a signal device or flagperson is warning of an approaching train, you must

  1. slow down and proceed with caution.
  2. cross the tracks as quickly as possible.
  3. stop at least 1.5 metres (5 feet) from the nearest rail.
  4. stop at least 5 metres (15 feet) from the nearest rail. ✓

Answer: D. stop at least 5 metres (15 feet) from the nearest rail.

You must stop at least 5 metres (15 feet) from the nearest rail when a signal device or flagperson warns that a train is coming.

Why this is the answer

The handbook says that when a train is coming you stop at least five metres back from the nearest rail or gate, and you wait until you are certain the train or trains have passed before crossing. It also tells you never to race a train to a crossing. With a signal or flagperson warning you, the way is not clear, so the five-metre stopping distance is what applies. Keeping that space back from the rail is the gap the handbook sets.

Why the other answers are wrong

Remember it

Picture a full car length and a bit more between your bumper and the rail — that is your five-metre cushion when a train is coming.

Official handbook: Official MTO Truck Handbook, Stopping at railway crossings

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.