Essential traffic laws every driving instructor should teach

Your learners will forget plenty of what you tell them, but the road rules have to stick. They’re what keeps traffic predictable, and they’re what an examiner is watching for on test day. As an instructor, you need to know the rules well enough to explain not just what they are, but why they exist.

This guide covers the core rules every instructor should be able to teach, the mistakes learners make most often, and practical ways to make the rules memorable. One caution before you start: the details vary between states, so always teach from your own state’s road rules and road user handbook.

How road rules work in Australia

The Australian Road Rules, maintained by the National Transport Commission, are model laws. They form the basis of the road rules in each state and territory, but they aren’t a single national law. Each jurisdiction reproduces them in its own legislation, doesn’t always copy every provision exactly, and adds local rules of its own.

That’s why the principles below are broadly the same everywhere, while things like school zone times, rules for learner and provisional drivers, and penalties differ. If you train or work in more than one state, learn each one’s version. Our state pathways page links to the requirements for each state.

The rules to teach first

Speed limits

Under the Australian Road Rules, the default speed limit in a built-up area is 50 km/h unless signs say otherwise. Teach learners to look for speed signs at every change of road, to notice when a limit ends, and to remember that the limit is a maximum, not a target. School zones, roadworks and variable speed signs all need attention, and school zone times and limits are set by each state.

Give way at intersections and roundabouts

Give-way errors cause many of the stressful moments in a lesson. The principles to teach:

• Stop signs: stop completely at the stop line (or before the intersection if there’s no line), then give way.
• Give way signs: slow down, be ready to stop and give way to vehicles on the other road.
• T-intersections: a driver on the road that ends gives way to vehicles on the road that continues.
• Intersections with no signs or signals: give way to vehicles on your right.
• Turning: when turning right, give way to oncoming vehicles going straight or turning left. When turning at any intersection, give way to pedestrians crossing the road you’re entering.
• Roundabouts: give way to vehicles already in the roundabout, and signal when leaving if it’s practical.

Signalling and lane changes

Learners must signal for long enough to warn other road users before turning, changing lanes or pulling out from the kerb, and cancel the signal afterwards. When changing lanes, they give way to vehicles already in the lane they’re moving into. Teach a consistent routine: mirrors, signal, head check over the shoulder, then move smoothly if the gap is safe.

Pedestrians and crossings

Drivers must give way to pedestrians on a pedestrian crossing, and at a children’s crossing with the flags out, they must stop for any pedestrian on or entering the crossing. Encourage learners to scan footpaths near crossings, schools, shopping strips and bus stops, and to be ready for people who step out without looking.

Emergency vehicles

Drivers must give way to an emergency vehicle that’s showing flashing lights or sounding a siren, moving out of its path when it’s safe to do so. Most states also have rules about slowing down when passing stationary emergency or roadside assistance vehicles, but the speeds and details differ, so teach your state’s version.

Headlights

The Australian Road Rules don’t allow high beam when you’re less than 200 metres behind a vehicle travelling in the same direction, or less than 200 metres from an oncoming vehicle. You can briefly flick to high beam immediately before overtaking.

Mobile phones

Phone rules are among the strictest, and they’re tougher still for learners and provisional drivers. In NSW, for example, learner, P1 and P2 drivers must not use a mobile phone at all while driving, even when stopped in traffic, and that includes hands-free calls and navigation. Show learners how to set up the car before moving and put the phone away.

Seatbelts

Everyone in the car must be restrained, and the driver is responsible for making sure passengers under 16 are correctly restrained. Make the seatbelt check part of your pre-drive routine so it becomes automatic.

Alcohol and drugs

Learner and provisional drivers must have a zero blood alcohol concentration (BAC). Full licence holders generally have a limit of 0.05, with lower limits for some groups of drivers. Check the limits that apply in your state, including any that apply to you while you’re instructing, and talk openly with learners about drug driving, prescription medication and fatigue.

Common mistakes learners make, and how to fix them

• Rolling stops. Many learners slow down but never fully stop at a stop sign. Ask them to feel the car settle completely and say “stopped” before they look both ways.
• T-intersection confusion. Set up a route with several T-intersections in a row and have the learner say, before each one, who gives way.
• Skipping the head check. Mirrors alone miss blind spots. Prompt “mirror, signal, head check” every time until the learner does it without being asked.
• Late or forgotten signals. Learners often indicate as they turn rather than before, or leave the indicator on after a roundabout. Call out the decision point early so they have time.
• Speed creep. On a quiet 50 km/h street, a relaxed learner can drift over the limit. Ask “What’s the limit here?” at random points.
• Missing pedestrians when turning. Teach learners to look into the road they’re turning into, not just at oncoming traffic.

How to teach road rules so they stick

Explain the reason. “Give way to the right” is easier to remember when the learner understands it gives everyone the same predictable rule at an unmarked intersection.

Use commentary driving. Ask the learner to talk through what they see and the rule that applies: “Give way sign ahead, I’ll slow down and check right, then left.” It shows you what they’re thinking and builds the habit of reading the road.

Plan routes around the rule. If the lesson is about roundabouts, choose a route with several roundabouts of different sizes rather than hoping you’ll come across one.

Draw it. A quick sketch on paper, or coins on the dashboard while parked, helps learners work out who goes first.

Quiz at the end, not on the move. A few questions once the car is parked, such as “What does a stop sign require?”, reinforce the lesson without adding to their workload while driving.

Keep your own knowledge current

Road rules change, and learners will ask about new ones they’ve seen in the news. Make a habit of checking your state regulator’s updates, rereading your state’s road user handbook at least once a year, and noting any change in a lesson plan so you teach it consistently. If a learner asks something you’re unsure about, say so, look it up after the lesson and come back with the answer.

Frequently asked questions

Want to learn how to teach road rules, commentary driving and core manoeuvres properly? See the TLI41225 course overview, or book a free consultation to talk through whether becoming a driving instructor is right for you.