Overtaking is a common daily maneuver while driving, but it is also one of the most critical moments on the road. A small mistake during an overtake can turn into a serious accident in seconds, especially when overtaking from the right side, as it's the side most drivers don't anticipate.
However, there are specific situations where the law permits overtaking on the right, but understanding these situations precisely is what makes the difference between safe and dangerous driving.
This article will provide you with a simple and clear explanation to the question many people ask: When can we overtake a vehicle in front of us from the right side?
We will rely on international and Arab sources, and will review the risks of this maneuver, the situations where it is permitted, and the factors that determine its safety. We will also see how Darbk tires can play an important role in maintaining the car's balance and stability during any maneuver, even those requiring extra caution.
Definition of Overtaking on the Right:
It is when a vehicle moves to the right of another car with the aim of overtaking it and returning to the previous lane or continuing in the right lane. This type of overtaking is prohibited in most countries because the driver in front may not see the vehicle approaching from their right.
Why is Overtaking on the Right Dangerous?
There are several reasons that make this maneuver more dangerous than overtaking on the left:
- Blind spots on the right side are larger.
- Drivers do not expect a vehicle approaching from the right, which reduces reaction time.
- The likelihood of a side-impact collision is higher.
- Differences in speed between the two lanes lead to traffic confusion.
According to NHTSA: Improper overtaking is a cause in 8–10% of fatal accidents. And 64% of drivers do not expect a vehicle to overtake them from the right.
Why is the Left the Official Lane?
Most countries worldwide agree on a fixed rule: Overtaking must be from the left, except in specific cases.
General Overtaking Laws Globally:
European studies indicate that a significant percentage of side-impact collisions occur because one of the drivers used the right lane to overtake without noticing the vehicle in front.
- Traffic Regulations in Europe and the United States:
- In the European Union: Overtaking on the right is strictly prohibited unless the vehicle in front is turning left.
- In the United States: Most states prohibit passing on the right except under specific circumstances, such as heavy traffic or when the vehicle ahead is moving significantly slower.
- Arab Traffic Regulations:
- Saudi Arabia: Saudi traffic law prohibits passing on the right unless the vehicle ahead is unnecessarily occupying the left lane.
- United Arab Emirates: In the UAE, passing is only permitted on the left. However, it is allowed in slow-moving traffic if the lanes are moving at different speeds.
- Jordan, Egypt, and Morocco: Laws explicitly state that passing on the right is prohibited except in rare cases.
- Why do all these countries agree?
Because passing on the right: reduces predictability, increases side-impact collisions, and places the vehicle in the largest blind spot for large vehicles.
When is passing on the right legally permitted?
While laws may vary in detail, there are four main situations where passing on the right is permitted.
- When the vehicle ahead is turning left:
This is when the vehicle ahead signals a left turn and slows down or stops to make the turn. In such cases, the law permits passing on the right, provided you ensure the road is completely clear.
- When there are designated lanes for different directions:
On multi-lane roads: If the right lane is moving faster due to congestion in the left lane, proceeding in the right lane is not considered passing, but rather continuing in your own lane.
- During slow-moving traffic in major cities:
When traffic is moving very slowly, almost at a standstill. In this situation, moving past the vehicle ahead on the right is not considered passing.
- When there are obstacles or closures in the left lane:
This applies in special cases such as road repairs, a stopped vehicle, or an accident. In these situations, you may move to the right lane to bypass the obstruction.
When is overtaking on the right strictly prohibited?
There are situations where overtaking is considered extremely dangerous:
- At high speeds (above 60 km/h):
Studies published by MIT indicate that the probability of a side collision increases by 400% at high speeds, as the vehicle becomes less maneuverable, and any sudden lane change can lead to an instant loss of balance.
High speed reduces a driver's ability to judge distances and makes tires more prone to skidding, especially when attempting to overtake a vehicle from an unexpected side.
- On winding roads or inclines:
Poor visibility makes maneuvering unsafe, as drivers cannot see what lies beyond a turn or over a crest. Winding roads obscure parts of the path, and on inclines, oncoming vehicles can completely disappear from view.
In such conditions, overtaking on the right is like entering uncharted territory; you don't know what the road ahead holds, and you won't have enough time to react if a sudden hazard appears.
- On multi-lane highways:
Overtaking on the right is considered very dangerous in these situations, as drivers only expect to be overtaken on the left.
Generally, losing control when changing speed is a possibility, especially if the vehicle in the right lane is moving faster than it should.
Furthermore, highway traffic relies heavily on predicting the behavior of other vehicles. When a driver is overtaken on the right, it creates confusion that can lead to chain collisions.
- When trucks or buses are present:
The right blind spot of trucks is significantly larger than that of other vehicles, and the driver, high in the cab, cannot see smaller vehicles in that area, even if they are very close. This makes overtaking on the right a major risk, as the truck might suddenly change lanes without realizing you are there.
According to the FMCSA, 74% of car-truck accidents occur when the car is in the right blind spot, confirming that this specific side is the most dangerous when overtaking.
Why is overtaking on the right more dangerous when dealing with trucks?
Large trucks possess characteristics that make any overtaking on their right side a significant risk. They are not merely slow-moving, massive vehicles, but complex systems operating with immense weight, covering long distances, and having limited visibility. Therefore, a driver attempting to overtake a truck on the right enters a highly sensitive zone where the slightest error could lead to a collision, swerving, or a complete loss of control.
Generally, large trucks possess several characteristics:
- Wider blind spots:
The right-side blind spot for trucks isn't just a small area where vehicles disappear; it's a vast space extending almost the entire length of the truck. This means that the driver in the cab, no matter how hard they try, cannot see a small car approaching from their right side.
The driver of the small car might think the truck driver sees them, but in reality, the truck has no way of detecting them. This makes passing on the right akin to driving completely within an "invisible zone."
- Slow Response Time:
Due to their massive size, trucks require a much longer stopping distance, sometimes up to three times what a regular car needs. If a truck driver has to brake suddenly while a vehicle is passing on the right, the small car often has no room to escape. The slow response time of trucks makes any attempt to pass in tight or unexpected spots a risk that could end in a painful collision.
- Truck Drifts Slightly Right When Braking:
When braking hard, a truck naturally tends to drift to the right due to weight distribution and rear-wheel drive forces. This slight drift is enough to collide with a small car attempting to pass on that side.
The problem is that the passing driver only sees this drift when it's too late, while the truck driver might not even feel it happening.
- Truck Size and Width:
A truck occupies a significant amount of road width, meaning any misjudgment when passing on the right can lead to a side-swipe. With the wide trailer of a truck, the margin for small vehicles to maneuver is reduced. If a car tries to hug the right edge to pass a truck, even the slightest deviation from the truck is enough to cause a dangerous side contact.
How to Safely Pass on the Right (When Permitted):
- Ensure a Full View of the Road:
Before deciding to pass on the right (if it's legal), your view of the road must be completely clear.
It's not enough to just see the vehicle in front of you; you must see your entire lane and ensure there are no fast-approaching vehicles in the blind spot or vehicles nearing side intersections. The road around you must be open and clear, as any sudden element could make passing an uncalculated risk.
- Always Use Your Turn Signal:
A turn signal isn't just a formality; it's the language of the road. Using it gives drivers around you a chance to understand your intention and react accordingly, reducing confusion and preventing accidents. Even if the road is empty, consistent use of your signal makes your driving predictable and disciplined.
- Avoid Sudden Acceleration:
Sudden acceleration during passing can confuse other vehicles and may cause your tires to lose traction, especially if the road is uneven or your tires are worn.
Therefore, a successful pass isn't the fastest, but the smoothest. Maintaining a consistent speed helps you stay in control and prevents loss of balance.
- Ensure the Vehicle Ahead Sees You:
The driver ahead of you needs to know you're there, and that only happens if you're visible in their side mirror. Here's a simple rule: if you can't see the driver's face in their mirror, they can't see you.
This means you are in a dangerous blind spot for him, and he might suddenly change lanes without noticing you. Therefore, before overtaking, always ensure you are within his safe field of vision.
The role of tires in safe overtaking, and why Darbk is the optimal choice?
Overtaking, whether from the left or right, relies on vehicle stability during the maneuver, and stability starts with the tires. Darbk tires have several features that make them a helpful factor during overtaking:
- Superior Grip During Lane Changes:
Darbk tires are equipped with an advanced tread pattern that provides excellent grip during cornering and lane changes.
- Shorter Stopping Distance:
Overtaking from the right might require sudden braking, and this is where Darbk's efficiency shines.
- High Heat Resistance:
In our Gulf environment, road temperatures exceed 70°C, and Darbk tires can withstand up to a constant 80°C.
- The Saudi Quality Mark SASO:
This mark gives drivers complete confidence in the tires' performance.
Therefore, always remember that with Darbk, even overtaking moments become safer and more confident.
