ACT Road Rules Knowledge Test study materials
ACT Road Rules Knowledge Test study resources

ACT Road Rules Knowledge Test: Traffic Signs and Road Markings

ACT Road Rules Knowledge Test · Work through your exam, one topic at a time.

All guide sections

Traffic Signs and Road Markings

Core concepts

Signs fall into three groups. Regulatory signs give orders you must obey: stop, give way, speed limits, no entry, no U-turn, keep left. Most are circular or rectangular with red, black, or blue elements. Warning signs alert you to hazards ahead, such as curves, pedestrian crossings, school zones, or slippery roads; they are usually triangular with a red border. Information signs guide you: route numbers, destinations, parking, and services. Learn the shapes and colours, because questions often describe a sign in words rather than showing it.

Road markings carry legal meaning. A solid centre line means do not cross; a broken line means you may cross when safe. Double lines with one solid and one broken line mean the side with the broken line may cross. Stop lines mark where you must stop at a stop sign or traffic light. Give-way lines are broken. Zebra crossings give pedestrians priority once they step onto them. Edge lines separate the roadway from the shoulder.

Traps to watch

  • A warning sign does not set a speed limit; it tells you a hazard is ahead and you should adjust speed.
  • A broken line allows crossing only when it is safe, not automatically.
  • Yellow or orange signs often indicate temporary roadworks and override normal markings.
  • Do not confuse a "no stopping" sign with a "no parking" sign; stopping is stricter.

Worked example

You see a triangular sign with a red border showing a pedestrian on a crossing. This is a warning, not an order to stop. Slow down and be ready to give way if a pedestrian appears.

Rule of thumb

Red circle means must; red triangle means warning; blue or green rectangle means information.