New South Wales · Driver Knowledge Test (DKT) · Road safety

What are variable speed limit signs, and do you have to obey them?

The answer

  • Electronic signs in tunnels, motorways and bridges whose displayed limit you must not exceed Correct
  • Signs that apply only to heavy vehicles
  • Signs that only operate during peak hour
  • Advisory only — they suggest a safe speed

Why that's the answer

Variable speed limit signs are electronic signs used in tunnels and on motorways and bridges, where the limit changes with road conditions. You must not go faster than the limit shown at the time.

Where this rule comes from

Take the full New South Wales practice test (153 questions)

More NSW DKT questions

Same topic first — road safety trips up more learners than any single rule.

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