South Australia · The Driver's Handbook · chapter 6 · 23 min read

Road Rules — Crossings, Giving Way & Roundabouts

Yellow Arrow

This indicates that the lights are about to change to red. If you intend to turn in the direction of the arrow, you must prepare to stop and not enter the intersection beyond the stop line unless you are unable to stop your vehicle safely. You may proceed if the yellow arrow goes out leaving only a green light and if it is safe to do so, but beware of oncoming vehicles.

Green Light

You may proceed through the intersection or turn right or left, if it is safe to do so, unless:

• a sign or signal such as No Right Turn or No Entry prohibits that movement or
• the intersection or the road beyond the intersection is blocked. If turning right, enter beyond the stop line and proceed as far as possible without impeding oncoming vehicles. Wait within the intersection until it is safe to complete the turn. You must also give way to:
• other vehicles and pedestrians in the intersection after the last light change, including turning traffic
• pedestrians, if you are turning to the right or left
• vehicles from the opposite direction, if you are turning right.

Green Arrow A green arrow, either alone or with any other lights, means you may proceed in the direction of the arrow if safe to do so. Left Turn on Red Permitted after Stopping This is allowed only where there is a sign stating Left Turn on Red Permitted After Stopping. If there is such a sign, you can turn left before the traffic lights change to green – but only after stopping at the stop line and making sure it is safe to do so and giving way to all other vehicles and pedestrians.