K53 topic guide · 3 chapters
K53 traffic light (robot) rules
What each signal means, what to do when robots fail and how flashing signals work.
In South Africa traffic lights are called robots. These chapters cover the meaning of each signal, what to do at a failed or flashing signal and how to signal your own intention to other road users.
Traffic lights and signal-controlled crossings
Traffic lights are light signals that organise movements where roads meet or pedestrians cross. In South Africa they are also commonly called robots. They allow conflicting streams of traffic to move at different times instead of arriving in the same space together.
- Use the signal facing your approach and intended movement.
- Ordinary red means stop and wait; it is not a general turn-on-red permission.
- Stop for amber when you can do so safely. Never race the changing light.
Read the full chapter: Traffic lights and signal-controlled crossings →
Failed and flashing traffic signals
A failed signal-controlled junction may have dark lamps, conflicting indications, or a temporary “traffic signals out of order” warning. A light that is temporarily red is not a failure: observe the whole situation rather than assuming the lamps should have changed.
- Approach a suspected failed junction ready to stop and assess the controls.
- Make your own complete stop and check that other drivers are actually yielding.
- A flashing red railway warning requires waiting until the warning has ended.
Read the full chapter: Failed and flashing traffic signals →
Indicators and signals of intention
An indicator communicates an intended turn or lane change. Brake lamps warn of slowing or stopping. These signals give others time to understand your plan, but do not grant you priority or reserve a gap.
- An indicator communicates an intended turn or lane change.
- Stay in the current lane.
- Apply the full rule to the actual vehicle, road and conditions.
Read the full chapter: Indicators and signals of intention →
Practice questions on traffic lights (robots)
1 When should you signal a turn?
- Only after beginning the turn
- In good time so other road users can react
- Only if a vehicle is behind you
Show the answer
Answer B: In good time so other road users can react
Signal in good time before stopping or turning. Use direction indicators when turning or changing lanes. A signal must be visible long enough to warn others. Do not move between lanes if doing so obstructs or endangers traffic.
Memory tip: Signal early, but move only when safe.
All vehicle codes
2 Does using an indicator give you priority to change lanes?
- Yes, on a freeway
- Yes, after three flashes
- No, the move must still be safe
Show the answer
Answer C: No, the move must still be safe
Signal in good time before stopping or turning. Use direction indicators when turning or changing lanes. A signal must be visible long enough to warn others. Do not move between lanes if doing so obstructs or endangers traffic.
Memory tip: Signal early, but move only when safe.
All vehicle codes
3 Must you use direction indicators when changing lanes?
- Yes, indicate your intention
- Only at night
- Only when travelling above 60 km/h
Show the answer
Answer A: Yes, indicate your intention
Signal in good time before stopping or turning. Use direction indicators when turning or changing lanes. A signal must be visible long enough to warn others. Do not move between lanes if doing so obstructs or endangers traffic.
Memory tip: Signal early, but move only when safe.
All vehicle codes
4 A lane change would force another driver to brake suddenly. What should you do?
- Sound your horn and move
- Wait for a safe gap
- Move anyway because you signalled
Show the answer
Answer B: Wait for a safe gap
Signal in good time before stopping or turning. Use direction indicators when turning or changing lanes. A signal must be visible long enough to warn others. Do not move between lanes if doing so obstructs or endangers traffic.
Memory tip: Signal early, but move only when safe.
All vehicle codes
AceK53 is an independent study aid based on public road traffic manuals and is not an official test. Always confirm requirements with your driving licence testing centre.