Passing your practical driving test is a huge milestone — but for many new drivers, the real nerves kick in the first time they merge onto a motorway without a supervisor in the passenger seat. Motorway and highway driving is fast, unforgiving, and full of rules that can catch out even the most prepared learner. Here's what you need to know before you hit the open road solo.
Speed Limits and the Speedo Trap
Most Australian motorways have a speed limit of 110 km/h, though some roads in the Northern Territory permit higher. As a newly licensed driver on your P1 licence, your speed limit is capped at 90 km/h in most states and territories — even if the posted limit is higher. In New South Wales, Victoria, and Queensland, P1 drivers must not exceed 90 km/h. Always check the rules for your specific state.
It's also worth knowing that police regularly target vehicles for roadside checks, including speedometer accuracy and tyre condition. Recent reports highlight that Aussie police are increasingly focused on car parts like tyres and lights — so make sure your vehicle is roadworthy before every trip.
Keep Left Unless Overtaking
One of the most commonly misunderstood motorway rules is the keep left unless overtaking rule. On roads with a speed limit above 80 km/h, you must keep left unless you are overtaking. Sitting in the right lane when not overtaking isn't just frustrating for other drivers — it can earn you a fine. Transport for NSW has recently reminded drivers of this rule, which has divided opinions online but is firmly enforceable.
Safe Following Distances at High Speed
At 110 km/h, your vehicle travels over 30 metres every second. The three-second rule is the minimum following distance recommended in dry conditions — and you should extend this to four or more seconds in wet weather or when driving at night. New drivers often underestimate how much longer it takes to stop at highway speeds compared to suburban streets.
How to apply the three-second rule:
- Pick a fixed object on the road ahead, such as a sign or bridge.
- When the vehicle in front passes it, start counting: "one thousand and one, one thousand and two, one thousand and three."
- If you reach the object before you finish counting, you're following too closely — ease off the accelerator.
Merging Confidently and Legally
Merging at motorway speeds is one of the trickiest skills to master after you've passed your test. The key rules to remember are:
- When lanes merge and there is no give way sign, the vehicle that is ahead has right of way — this is the "zipper" or zip merge rule.
- When merging from a slip lane onto a motorway, you must give way to all vehicles already on the motorway.
- Always match the speed of traffic before merging — accelerate on the on-ramp, not after you've merged.
- Check your mirrors, signal early, and pick your gap before committing.
Obscure Rules That Could Cost You
Beyond the basics, there are several lesser-known motorway rules that regularly drain Aussie drivers' wallets. Did you know that undertaking — passing a vehicle on the left on a multi-lane road — is illegal in most circumstances? Or that you must not stop on a freeway except in an emergency? Breaking down on a motorway requires you to move your vehicle as far left as possible, turn on your hazard lights, and exit via the passenger side where safe to do so.
Building Confidence on the Highway
If motorway driving still feels daunting, start by practising on quieter sections during off-peak hours and gradually work up to busier conditions. Using an app like SteerClear — which lets learners and new drivers practise real Australian driving test routes with live scoring — can help reinforce the judgement and hazard-perception skills that translate directly to safer highway driving.
The transition from supervised learner to independent driver is significant. Take it at your own pace, know the rules, and remember: confidence on the motorway comes with experience, not just a licence.