California was the first state to formally legalize lane splitting—the practice of motorcyclists riding between lanes of slow-moving traffic. Several states have followed California’s lead, but the practice has generated significant discussion among legal professionals, road safety experts, motorcyclists, and other road users.
In this blog, our motorcycle accident lawyers will discuss the laws surrounding lane splitting in California, the legal implications, and the ongoing debate surrounding this issue. Being informed is the best way to stay safe on the road, whether your vehicle has two wheels or four.
The Legal Framework of Lane Splitting in California
The California Vehicle Code section 21658.1 defines lane splitting as driving a motorcycle between rows of stopped or moving vehicles. This change in the vehicle code was approved to reduce congestion on Californian roads, which have one of the highest traffic volumes in the United States.
The legislation permitting this change gave the California Highway Patrol (CHP) the power to develop detailed lane-splitting safety guidelines for motorcyclists. These official parameters were a marked shift from the previous legal gray area that neither permitted nor prohibited the practice.
Safety Guidelines and Legal Considerations
While lane splitting is legal, motorcyclists must practice it safely and responsibly. While they are not official laws, some guidelines play a crucial role in determining liability in the event of an accident involving lane splitting. Courts will consider the following when processing negligence claims:
- Lane splitting should not occur at speeds more than 10 mph faster than surrounding traffic
- Lane splitting becomes particularly dangerous at speeds above 30 mph
- Lane splitting should be avoided when traffic is moving at 40 mph or faster
The California Motorcycle Safety Program (CMSP) has released further advice for motorcyclists, including the four Rs of lane splitting: Reasonable, Responsible, Respectful, and aware of road conditions.
- Reasonable: Do not exceed 30 mph when lane splitting to ensure adequate time to respond to sudden changes.
- Responsible: Motorcyclists take responsibility for their safety, which means they must rely on their common sense to determine when it’s safe to lane split.
- Respectful: Safely sharing the road is the mutual responsibility of all road users, so riders must maintain a safe distance and not expect other drivers to move for them.
- Roadway Conditions: Motorcyclists must be hyper-aware of the conditions of the road. Hazards require extra care when lane splitting due to the limited space.
The Liability and Insurance Implications of Lane Splitting
The legalization of lane splitting has significant implications for liability in motorcycle accidents. When accidents occur during lane splitting, determining fault requires analysis of the following factors:
- Was the motorcyclist following CHP’s recommended practices?
- Were the surrounding conditions conducive to safe lane splitting?
- Did other road users make sudden lane changes or engage in dangerous behaviors?
- Was the motorcyclist traveling at an appropriate speed relative to traffic
These factors influence motorcycle accident claims. Insurance companies must now carefully assess liability rather than automatically blaming the motorcyclist, a common practice before legalization.
The Pros and Cons of Lane Splitting
There are proponents and critics of lane splitting, with each side making several valid points. The debate surrounding lane splitting is ongoing, and motorcyclists must stay current on developments in this conversation.
Pros
- Reduced traffic congestion
- Decreased risk of rear-end collisions for motorcyclists
- Improved traffic flow for all vehicles
- Lower risk of engine overheating and rider heatstroke in hot weather
Cons
- Potential for blind spot side-swipe accidents
- Difficulty judging safe spacing between vehicles
- Increased risk during adverse weather
Legal Precedents
Since legalization, Californian courts have begun establishing precedents regarding lane-splitting accidents. Some of the critical considerations of these cases have included:
- Whether the motorcyclist’s actions were reasonable
- Whether other drivers exercised reasonable care in checking for motorcycles
- California’s comparative negligence principles
- The role of CHP guidelines
Recommendations for Road Users
From a legal perspective, there are a few things Californian road users can do to avoid accidents and operate within the law at all times.
Motorcyclists
- Strictly follow CHP guidelines
- Document traffic conditions if involved in an accident
- Maintain insurance coverage
- Use a helmet camera to document potential accidents
Other Drivers
- Always check your blind spots for motorcycles
- Maintain your lane in heavy traffic
- Signal well in advance of lane changes
- Never intentionally block motorcyclists from lane-splitting
Contact the Experts
The legalization of lane splitting in California is a progressive approach to motorcycle traffic management. However, lane splitting still requires careful attention to legal responsibilities and safety guidelines from agencies such as CHP and CMSP.
As the practice continues to evolve and the laws surrounding it solidify, motorcyclists and other drivers must stay informed about their rights and responsibilities under the law. Understanding all perspectives is crucial for anyone navigating California’s roads.
If you’ve been involved in an accident involving lane splitting, contact HHJ Trial Attorneys to schedule a consultation with our personal injury experts. We will advise you on the viability of your case and what your options are regarding legal recourse and compensation.
