Western Australia · Theory Test (CTT) · Road rules

You cannot tell whether a stationary vehicle with flashing lights is an incident response vehicle. What should you do?

The answer

  • Sound your horn to check
  • Maintain your speed and pass normally
  • Treat it as if it is one Correct
  • Stop completely until it moves

Why that's the answer

If you are not sure whether a stationary roadside vehicle displaying flashing lights is an incident response vehicle, treat it as if it is — slow down and, if it is safe, move over.

Where this rule comes from

Take the full Western Australia practice test (95 questions)

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