SENIOR DRIVER SAFETY
U-Turns in Busy Traffic: Choosing the Safe Option
A U-turn in busy traffic combines road-rule knowledge, gap selection, observation and the willingness to choose another route. A signal does not give priority. A driver making a U-turn must give way to all traffic and pedestrians and must not proceed unless there is a clear, legal and controllable path.
First decide whether the turn is legal
First decide whether the turn is legal. Do not make a U-turn where a sign prohibits it, at traffic lights unless a U-turn Permitted sign is displayed, across a continuous dividing line, across a dividing strip or painted island, on a one-way road, or at a crossing where the road rules prohibit it. There must be a sufficient view in every direction and the manoeuvre must not unreasonably obstruct traffic.
Choose a predictable starting position
The South Australian advanced training standard recommends a starting position that requires crossing only one major traffic flow and minimises disruption. A right-turn storage lane opposite a quiet road may be suitable if markings and conditions allow. Do not begin merely because the vehicle behind is waiting.
Use this decision sequence:
Plan and position
Read signs, line markings, crossings, traffic lights and road width.
- Check mirrors and surrounding traffic early; signal clearly when required.
- Position so the vehicle is predictable and only one major traffic flow needs to be crossed where possible.
- Scan both directions, the destination road, driveways and pedestrian areas.
Select the gap and move
Select a gap that allows the turn without making another road user brake or swerve.
- Move smoothly under full control and complete the turn without reversing.
- If traffic changes, stop in a lawful safe area where possible or abandon the U-turn and choose another route.
Helpful adjustment for older drivers
For older drivers, the best adjustment is often route choice: use a quieter intersection, turn where traffic lights provide a protected opportunity, or drive around the block. Avoid attempting the manoeuvre when glare, rain, peak traffic, fatigue or restricted head movement makes speed and distance difficult to judge.
Common unsafe habits
Common unsafe habits include confusing a signal with priority, watching only the nearest lane, accepting a gap after another driver waves, starting without checking pedestrians, turning from an unexpected position and persisting when the original gap closes. A wave from another driver never confirms that every lane is clear.
Stop and reassess when the situation changes
The safe lesson is simple: a missed U-turn costs time; a forced U-turn can cost much more.
Safety information and official sources
The safe lesson is simple: a missed U-turn costs time; a forced U-turn can cost much more.
My Licence: The Driving Companion, Unit 4 Task 27
Driver’s Handbook: Signals and U-turn rules
Review date: 15 August 2026.