Lane Splitting Accidents in Michigan

Lane splitting occurs when a motorcyclist rides between two lanes of traffic moving in the same direction, typically between rows of slow-moving or stopped vehicles. While this practice is legal in some states, Michigan explicitly prohibits it. However, accidents involving lane splitting still happen on Michigan roads, and the question of who bears liability in these crashes is more nuanced than many riders and drivers assume.

Michigan Law Prohibits Lane Splitting

Under Michigan Vehicle Code MCL 257.660, motorcyclists are required to operate within a single lane and are prohibited from passing between lanes of traffic or between adjacent rows of vehicles. The statute specifically states that motorcycles are entitled to the full use of a lane, and no motor vehicle shall be driven in such a manner as to deprive any motorcycle of the full use of a lane. Conversely, motorcycles are not permitted to overtake or pass in the same lane occupied by another vehicle.

Michigan law also distinguishes between lane splitting and lane sharing. While two motorcycles may ride side-by-side in a single lane (lane sharing between motorcycles is permitted), a motorcycle cannot ride alongside a car or truck within the same lane. Violating this law is a civil infraction that can result in a traffic citation, but more importantly, it creates significant complications for any injury claim that follows.

It is worth noting that Michigan has not adopted any "lane filtering" exceptions. Some states have introduced lane filtering laws that allow motorcycles to move between stopped traffic at low speeds, such as at red lights. Michigan has no such provision. Any movement between lanes by a motorcycle is prohibited regardless of traffic conditions or speed.

Liability When a Motorcyclist Is Lane Splitting

If a motorcyclist is injured while lane splitting in Michigan, their violation of MCL 257.660 will be a significant factor in determining liability. However, it does not automatically bar them from all recovery. Michigan applies a modified comparative negligence system under MCL 600.2959, which means fault is allocated between all parties involved in the accident.

A motorcyclist who was lane splitting at the time of a crash will likely be assigned some percentage of fault. The critical question is whether that percentage reaches or exceeds 50%. If the rider is found to be 50% or more at fault, they cannot recover any damages under Michigan law. If they are found less than 50% at fault, they can still recover, but their compensation will be reduced by their percentage of responsibility.

Several factors influence how fault is divided in lane-splitting accidents:

• Speed of the motorcycle: Was the rider traveling at or near the speed of surrounding traffic, or significantly faster?
• Traffic conditions: Was traffic completely stopped, crawling slowly, or moving at normal highway speeds?
• The other driver's conduct: Did the car driver make a sudden lane change without signaling, open a door into traffic, or engage in other negligent behavior?
• Visibility: Were road conditions, lighting, or vehicle positions such that the motorcyclist should have been visible to other drivers?
• Location: Did the accident occur on a highway, city street, or in a construction zone with narrowed lanes?

The Driver's Duty of Care Still Applies

A common misconception is that because lane splitting is illegal in Michigan, a car driver bears no responsibility if they strike a lane-splitting motorcycle. This is incorrect. Every driver on Michigan roads has a legal duty to operate their vehicle with reasonable care and to maintain awareness of their surroundings. This duty does not disappear simply because another road user is violating a traffic law.

Specifically, Michigan law requires drivers to:

• Check mirrors and blind spots before changing lanes (MCL 257.648)
• Use turn signals when changing lanes or turning (MCL 257.648)
• Not open vehicle doors into the path of traffic (MCL 257.669)
• Maintain a proper lookout for other vehicles, including motorcycles
• Operate their vehicle at a safe speed for conditions

If a driver makes an unsafe lane change without signaling and strikes a motorcycle that was splitting lanes, both parties may share fault. The motorcyclist violated the lane-splitting prohibition, but the driver also failed to signal and check their surroundings before changing lanes. In such cases, a jury might allocate fault 60/40, 70/30, or some other split depending on the specific circumstances.

Shared Fault Scenarios in Lane-Splitting Crashes

Real-world lane-splitting accidents in Michigan often involve shared responsibility. Here are common scenarios and how fault might be allocated:

Scenario 1: Sudden lane change without signal. Traffic is stopped on I-696. A motorcycle moves between lanes at low speed. A car suddenly changes lanes without signaling, striking the motorcycle. While the rider was illegally lane splitting, the driver failed to signal and verify the lane was clear. Fault might be split with the rider bearing 30-40% and the driver 60-70%.

Scenario 2: Door opening in stopped traffic. A passenger opens their car door on the left side while traffic is stopped on Woodward Avenue, striking a lane-splitting motorcyclist. The occupant's failure to check before opening the door into a traffic lane is negligent, even though the motorcycle should not have been in that space. Fault allocation could range widely depending on circumstances.

Scenario 3: High-speed lane splitting on a freeway. A motorcycle weaves between lanes at 70 mph while traffic moves at 55 mph on I-75. A car merges right with a signal, and the motorcycle strikes its rear quarter panel. In this scenario, the rider's excessive speed and dangerous lane splitting would likely result in the rider being assigned majority fault, potentially barring recovery entirely.

Scenario 4: Distracted driver drifts into another lane. A texting driver drifts out of their lane and strikes a motorcycle that was splitting lanes nearby. While the motorcyclist should not have been between lanes, the driver's distracted operation was independently negligent and may have caused the collision regardless of the rider's position.

Evidence That Matters in Lane-Splitting Cases

Because fault allocation is so critical in these cases, evidence preservation is essential. Key evidence includes:

• Dashcam or helmet camera footage: Video evidence can show exact positioning, speed, and the actions of both parties before the collision
• Traffic camera footage: Many Michigan intersections and highway segments have cameras that may capture the accident
• Witness testimony: Other drivers and passengers who saw the accident can provide crucial accounts of what each party was doing
• Vehicle damage patterns: The location and type of damage on both vehicles can help accident reconstructionists determine positions and speeds at impact
• Phone records: If the car driver was texting or on a call at the time of the accident, phone records can establish distraction

Protecting Your Rights After a Lane-Splitting Accident

Whether you are a motorcyclist who was injured while lane splitting or a driver who struck a lane-splitting motorcycle, the legal analysis of these cases requires careful attention to Michigan's comparative fault rules. Insurance companies will aggressively argue fault allocation to minimize their payouts.

If you were lane splitting and injured by a negligent driver, do not assume you have no case. While your traffic violation will be a factor, it does not automatically bar you from compensation if the other driver was also negligent. Conversely, if you are a driver who struck a lane-splitting motorcycle, understand that the motorcyclist's illegal maneuver does not automatically shield you from liability if you failed to exercise reasonable care.

The three-year statute of limitations under MCL 600.5805 applies to these claims. However, given the complexity of proving comparative fault in lane-splitting cases, early investigation and evidence preservation are critical. Consulting with an experienced motorcycle accident attorney promptly after the accident gives you the best chance of building a strong case regardless of which side of the claim you are on.