For most learner drivers, encountering a large truck on the road for the first time is genuinely intimidating. The sheer size of a semi-trailer, B-double, or heavy rigid vehicle changes the feel of everything around it — the wind pressure when it passes, the spray it throws in wet weather, the space it takes up in the lane beside you, and the way it moves differently from every other vehicle on the road.
The good news is that passing trucks safely is a skill you can learn, and once you understand why trucks behave the way they do, the anxiety around them diminishes significantly. This guide covers everything Melbourne learner drivers need to know about sharing the road with heavy vehicles — from the physics involved to the specific situations you’ll encounter on Melbourne’s roads.
Why Trucks Are Different: Understanding the Basics
Before talking about what to do, it helps to understand what you’re dealing with. Heavy vehicles behave fundamentally differently from cars for reasons rooted in physics, not driver error.
Stopping Distances
A fully loaded semi-trailer travelling at 100km/h needs roughly three times the stopping distance of a car travelling at the same speed. This isn’t because truck drivers are poor at braking — it’s because the mass of the vehicle means kinetic energy is vastly greater, and braking force has physical limits.
This is why you should never cut in front of a truck after overtaking. The gap you might safely use to merge in front of a car is genuinely dangerous in front of a loaded truck. The driver may see you but have no ability to stop in time.
Blind Spots
Trucks have dramatically larger blind spots than passenger vehicles. A standard semi-trailer has four significant blind zones:
- Directly behind the trailer — if you can’t see the driver’s mirrors, the driver can’t see you
- Directly in front of the cab — the height of the cab creates a blind zone immediately in front
- The left side — a wide blind spot running almost the full length of the vehicle
- The right side — a smaller but still significant blind spot, particularly at the rear
Lingering in any of these zones removes the driver’s ability to account for your presence. For learner drivers, the simple rule is: if you can’t see the truck driver’s mirrors, they can’t see you. Get out of that position as quickly and safely as possible.
The Effect of Wind and Air Pressure
Large trucks create a significant aerodynamic disturbance. When a truck passes you at speed on a multi-lane road or highway, the pressure wave can push your car sideways noticeably, particularly smaller, lighter vehicles. When the truck passes, there’s often a brief suction effect that can pull your vehicle toward the truck.
Being aware that this will happen, and having a firm, relaxed grip on the wheel when it does, prevents overreaction. First-time encounters with this effect can be startling if you’re not expecting it.
Wide Turns
Trucks require significantly more space to turn than cars. When a truck is turning left, it will often swing wide to the right first to create the arc needed for the trailer to follow the cab through the corner. This is why you should never squeeze in alongside a truck that’s turning — the trailer will track inward as the cab completes the turn, and the space that appears to exist can disappear extremely quickly.
Watch for a truck’s indicator early and give it space to complete the manoeuvre rather than trying to pass while it turns.
Passing Trucks on Melbourne Roads: The Situations You’ll Encounter
Melbourne’s road network creates several specific situations where learner drivers regularly encounter heavy vehicles. Each has its own considerations.
On the Freeway (CityLink, Monash, Western Ring Road)
Freeways are where most learner drivers first experience overtaking trucks at speed. The key principles:
Check your mirrors and blind spots thoroughly before moving to the right lane. This is standard practice for any lane change, but critical around trucks, which can obscure other vehicles in adjacent lanes.
Commit to the overtake. Don’t begin moving alongside a truck and then hesitate. A half-completed overtake leaves you in the worst possible position — in the truck’s blind spot for the longest possible time. Accelerate smoothly to a speed that lets you clear the truck in a reasonable time, then return to the left lane only when you can see the full front of the truck in your rear mirror.
Don’t sit alongside. If you’ve started passing a truck and another vehicle or a road condition means you need to slow down, the instinct is to ease off the accelerator. Instead, if it’s safe to do so, consider whether you can complete the overtake or whether returning behind the truck is the safer option. What you want to avoid is parking beside the truck in its blind spot at a matching speed.
Allow extra space when returning to the left lane. The rule of thumb is to wait until you can see the full front of the truck in your rear vision mirror before moving back to the left. The visual distance needed is significantly greater than for overtaking a car.
These are exactly the skills developed through highway driving lessons, where the focus is specifically on building the confidence and judgment to handle faster roads safely.
On Two-Lane Country Roads
Two-lane roads create the most demanding truck-passing scenario: overtaking a slow-moving truck with oncoming traffic in the opposing lane. This requires a clear line of sight, confidence in your vehicle’s acceleration, and good judgment about the time and distance available.
For learner drivers, the general advice is to be patient. The risk of a poorly judged overtake on a two-lane road is severe. Wait for a straight stretch with a clear sightline and enough time to complete the overtake comfortably — not just barely.
This is one reason open road lessons are so valuable for learners who will regularly drive beyond the metropolitan area. Handling the particular demands of country roads is a distinct skill set.
At Roundabouts
Trucks at roundabouts behave differently than cars for two reasons: their size means they may occupy more than one lane during transit, and their turning requirements mean their path through the roundabout may not follow the lane lines precisely.
Never position yourself alongside a truck at a roundabout if there’s any possibility you’ll be in the path of the trailer as it tracks through. Give trucks the space to complete their path and wait for them to clear before proceeding. Our guide on improving driving skills at roundabouts covers roundabout navigation in detail — the principles around giving space apply equally to trucks.
At Traffic Lights and Intersections
When stopped at traffic lights beside a truck, be aware of the trailer’s turning radius if the truck is indicating. As noted above, the trailer tracks inward as the truck turns, and what looks like clear space can close rapidly.
Also, be aware that trucks accelerate much more slowly than cars. If you’re immediately behind a truck at lights on an uphill section, leave extra space — a loaded truck can roll back slightly before the engine and transmission engage, and your proximity to the rear of the trailer matters.
In Wet Weather
The spray thrown by a passing semi-trailer in wet weather can temporarily blind you — a wave of water across your windscreen that your wipers can’t clear fast enough. If rain is heavy, increase your following distance from trucks significantly. Don’t follow closely immediately behind a trailer in the rain; the spray and reduced visibility compound the already-limited sightline.
Defensive Driving Principles Around Trucks
Good learner drivers approach trucks with the same mindset they bring to all potentially hazardous situations: anticipation and positioning. Understanding what defensive driving is and how to learn it provides the broader framework — around trucks, it translates to specific habits.
Stay visible. Position yourself where truck drivers can see you in their mirrors. If you can’t see their mirrors, change your position.
Don’t linger. Minimise the time you spend in blind spots. Move through, not alongside.
Give extra buffer. The standard two-second following distance from a car should be extended to four or more seconds when following a heavy vehicle. This improves your sightline, gives you more reaction time, and reduces the spray issue in wet conditions.
Watch for signals early. Trucks need more time and space to prepare for manoeuvres. Their indicators often go on earlier than a car’s would for the same action. Treat an early indicator from a truck as more significant than you might for a car.
Be patient. Many dangerous situations around trucks develop when a driver becomes impatient — squeezing past a slow-moving truck in insufficient space, cutting in front after passing, or rushing through a gap beside a turning truck. Patience is genuinely a safety skill.
Our defensive training lessons specifically develop these anticipatory habits, helping learner drivers build the situational awareness that makes every type of road encounter — including trucks — more manageable.
How Does This Connect to Your Driving Test?
Understanding how to behave around heavy vehicles isn’t just important for lifelong safety — it’s directly relevant to your VicRoads driving test.
Examiners assess whether you maintain appropriate following distances, check mirrors at the right intervals, handle lane changes safely, and respond correctly to the vehicles and conditions around you. Making a visible error in judgment around a heavy vehicle — following too closely, failing to check blind spots before a lane change near a truck, or positioning poorly at a roundabout with a truck — can accumulate faults or trigger an immediate failure.
Knowing what’s in the P’s driving test in Victoria helps you understand what’s being assessed. The criteria around observation, positioning, and hazard response all apply directly to how you handle trucks.
Our VicRoads test prep lessons allow you to practise these skills in the actual test environment, building the habits that assessors are specifically looking for. And our practice driving test checklist helps you track your readiness across all the assessed skills before test day.
Building Confidence Through Experience
Confidence around heavy vehicles comes primarily from exposure — encountering them in progressively more demanding situations while supported by an experienced instructor who can help you understand what’s happening and why.
Early learners often encounter trucks first in lower-stakes situations: a truck in the adjacent lane on a wide road, or a parked delivery truck requiring a pass on a suburban street. These encounters are good opportunities to practice the habit of checking mirrors and maintaining appropriate distance without the pressure of a higher-speed environment.
As your skills develop, highway driving lessons and open road lessons create the opportunity to encounter trucks at speed with an instructor present, which is far better than having your first high-speed truck encounter happen while driving alone on your P plates.
This is also one of the reasons that accumulating genuinely varied logbook hours matters. Hours driven on familiar suburban streets at the same times of day don’t build the range of experience that includes heavy vehicles in different conditions and environments. Actively seeking out driving situations that include major roads and arterials during your 120 hours will make you significantly more capable by the time you sit your test.
Tips for Nervous Drivers
For learner drivers who find heavy vehicles particularly anxiety-inducing, it’s worth naming that this is extremely common. The physical size and unpredictable-feeling behaviour of trucks triggers an instinctive caution that’s actually appropriate — trucks do require more respect than smaller vehicles.
The key is channelling that caution into positive behaviours (earlier checks, more distance, greater patience) rather than letting it manifest as freezing, erratic movements, or avoidance.
Our nervous driver lessons work specifically with learners who feel anxious behind the wheel. The approach is gradual exposure in a supportive environment — building confidence through experience rather than forcing encounters that feel overwhelming. Many learners who start as genuinely nervous drivers become confident, capable road users once they’ve built their skill base incrementally.
Our blog on driving tips for nervous drivers also covers the broader strategies for managing anxiety behind the wheel.
Common Mistakes Learner Drivers Make Around Trucks
Understanding the errors to avoid is as useful as knowing the right techniques. Our post on mistakes learner drivers make and how to avoid them covers the full range — around heavy vehicles specifically, the most common are:
Cutting in too soon after overtaking. The temptation to return to the left lane as quickly as possible after passing a truck is understandable, but returning too soon puts you in a dangerous gap. Wait for the full visual clearance.
Matching a truck’s speed alongside it. Whether because you hesitated during an overtake or simply weren’t paying attention, travelling at the same speed beside a truck for an extended period puts you in its blind spot. Either complete the overtake or drop back behind.
Following too closely. Tailgating a truck reduces your sightline to almost nothing, increases spray exposure in wet conditions, and removes your reaction time if the truck brakes.
Underestimating the turning radius. Assuming a truck will stay in its lane during a turn has caused many collisions. Give turning trucks the space they need, regardless of what the lane markings suggest is “yours.”
Being intimidated into poor positioning. Feeling pressured by a truck behind you and speeding up or drifting in your lane is a reaction to manage. Maintain your correct speed and positioning.
