Who’s at Fault in Most Motorcycle Accidents in Ontario?

In motorcycle crashes involving another vehicle, the other driver is more often at fault. The Hurt Report found that the other vehicle violated the motorcycle’s right of way in about two-thirds of multi-vehicle motorcycle accidents. Single-motorcycle crashes are different. In those cases, rider conduct is usually investigated much more closely.

Fault is not decided by the seriousness of the injury, the type of vehicle, or assumptions about motorcyclists. It is decided by the evidence of each specific crash.

If you were seriously injured in a crash, our Ontario motorcycle accident lawyers can review the evidence and explain whether the driver, the rider, a road authority, or another party is likely to be blamed.

Who is usually at fault in a motorcycle accident?

The answer changes depending on the specific type of crash. When a car, SUV, pickup truck, or transport truck hits a motorcycle, the other driver is often the focus of the fault investigation. The most common examples are left-turn crashes, failure-to-yield crashes, unsafe lane changes, and rear-end collisions.

The Hurt Report, one of the best-known motorcycle crash-causation studies, found that in multiple-vehicle motorcycle crashes, the other driver violated the motorcycle’s right of way and caused the crash in about two-thirds of cases.

More recent fatal-crash data shows why left-turn cases receive so much attention. The National Highway Traffic Safety Administration reported that, in 2023, 46% of fatal two-vehicle motorcycle crashes involved the other vehicle turning left while the motorcycle was going straight, passing, or overtaking.

Ontario fatal-crash data gives the other side of the answer. According to OPP-reported fatal motorcycle crash data republished by OrilliaMatters, riders were reportedly at fault in 60.7% of fatal OPP-investigated motorcycle crashes from 2012 to 2021. That statistic includes single-motorcycle crashes, where speed, loss of control, impairment, road surface, and cornering often become central issues.

So the better answer is this: drivers are usually at fault when another vehicle hits a motorcycle.

Why drivers are often at fault in motorcycle crashes

Many serious motorcycle claims begin with the same explanation from the driver: “I didn’t see the motorcycle.” That does not help the driver's case since they have a duty to keep a proper lookout before turning, merging, entering traffic, opening a door, or changing lanes. A motorcycle is smaller than a car, but it is still a vehicle on the road. Drivers are not excused simply because the rider was harder to notice.

Driver fault is commonwhen a driver turns left across the motorcycle’s path, pulls out from a stop sign or driveway, changes lanes without checking properly, follows too closely, opens a door into the rider’s path, makes a sudden U-turn, or drives distracted or impaired.

These collisions are dangerous since riders have nearly no physical protection. A driving error that causes a minor crash between two cars can cause a brain injury, spinal cord injury, fracture, amputation, or catastrophic impairment when the person hit is riding a motorcycle.

Left-turn crashes are the clearest example

Left-turn crashes usually happens when a driver turns across the path of an oncoming motorcycle. The rider is travelling straight. The driver says the motorcycle came out of nowhere, was travelling too fast, or was not visible.

Sometimes that defence has evidence behind it. However, in our experience, more often it does not.

Under Ontario’s Highway Traffic Act, a driver turning left across the path of an approaching vehicle must wait until the turn can be made safely. A motorcycle has the same right to the lane as any other vehicle.

These cases usually turn on distance, timing, speed, visibility, traffic lights, sightlines, road layout, witness evidence, video, and the damage pattern on the vehicles.

We have a separate article on drivers turning left in front of motorcycles in Ontario, because this is one of the most common motorcycle crash patterns and one of the most common fault disputes.

When the rider can be blamed

Motorcyclists can sometimes be found partly or fully at fault. Insurance companies and defence lawyers will try to focus on speed, braking, cornering, passing, lane position, lights, licence status, insurance, impairment, helmet use, and whether the rider was travelling too fast for the road, weather, or traffic.

Some of those arguments are fair. Others are built from assumptions about motorcyclists. Speed is the most common assumption we see in our practice. After a severe crash, people often assume the motorcycle must have been speeding because the injuries were so serious. However, the answer should come from video, scene measurements, debris, vehicle damage, witness evidence, and accident reconstruction.

Can both the driver and rider be at fault?

Yes. Ontario law allows fault to be divided between more than one person.

Under Ontario’s Negligence Act, a rider can still have a claim even if they are partly responsible. Their compensation is reduced by their percentage of fault.

For example, a driver could be considered mostly at fault for turning left across a rider’s path, while the rider is found partly at fault if reliable evidence proves speed contributed to the crash. That does not automatically end the lawsuit. It changes the value of the claim.

Does insurance property damage fault decide the whole case?

No, Ontario insurance companies apply the Fault Determination Rules to decide fault for insurance purposes. Those rules are important, but they do not always decide the full personal injury lawsuit.

Lawsuits examine at negligence, injuries, income loss, future care, pain and suffering, out-of-pocket expenses, and family claims. Police charges, insurance fault, and collision reports can help, but none of them should be treated as the final answer without reviewing the evidence.

What evidence proves fault after a motorcycle accident?

Strong evidence often includes the police report, officer notes, witness statements, photographs, video, vehicle damage, motorcycle damage, debris location, skid marks, road surface, sightlines, weather, traffic signal evidence, and accident reconstruction.

That evidence can sometimes disappear quickly. Video gets overwritten. Vehicles are repaired or destroyed. Road conditions change. Witnesses become harder to find. If the insurer is already blaming the rider, the fault investigation should start early.

Motorcycle accident claims across Ontario

Foster Injury Law represents injured riders across Ontario. Our main resource is our province-wide Ontario motorcycle accident lawyers page, and we also have local motorcycle accident resources for riders injured in Barrie, Kitchener, Vaughan, Markham, Richmond Hill, London, Ottawa, and Hamilton.

FAQ: Who’s at fault in most motorcycle accidents?

Who is at fault in most motorcycle accidents?

In crashes with motorcycles which involve another vehicle, the other driver is often at fault. The Hurt Report found that the other vehicle violated the motorcycle’s right of way in about two-thirds of multi-vehicle motorcycle crashes. In single-motorcycle crashes, rider fault is investigated more heavily.

Are motorcycle riders usually blamed for crashes?

Insurers often attempt to blame riders, but that does not end any determinations. Allegations about speed, visibility, lane position, or rider experience need to be tested against the evidence.

Is a left-turning driver usually at fault if they hit a motorcycle?

Typically, yes they are. Drivers turning left must not cross the path of an approaching motorcycle unless the turn can be made safely. Fault can still be disputed if there is reliable evidence about speed, visibility, or timing.

Can a rider sue if they were partly at fault?

Yes. A rider can sue even if they were partly responsible. Their compensation is reduced by their share of fault.

Speak with an Ontario motorcycle accident lawyer

If you were seriously injured in a crash, our Ontario motorcycle accident lawyers can review the police report, witness evidence, video, vehicle damage, road conditions, insurance position, accident benefits file, and lawsuit options.

Foster Injury Law represents injured riders across Ontario. Contact us for a free consultation.