Bicycle Accidents and the Three-Feet Rule: What Drivers and Cyclists Need to Know
Sharing the road safely is a mutual responsibility, especially when it comes to interactions between cars and bicycles. One key law that helps protect cyclists is the “three-feet rule,” which mandates that drivers give at least three feet of clearance when passing a bicyclist. Despite its simplicity, this rule is often misunderstood, or ignored altogether, leading to dangerous, sometimes fatal, bicycle accidents.
Below, we’ll explain what the three-feet rule is, why it matters, and what both drivers and cyclists should know to avoid collisions and stay safe.
What Is the Three-Feet Rule?
The three-feet rule is a legal requirement in many states (including Washington and California) that obligates motorists to leave a minimum of three feet of space when passing a person riding a bicycle on the road. The law applies when there is no designated bicycle lane and the speed limit is 45 mph or less.
If there’s more than one lane, drivers should move into another lane to safely pass.
While the exact language and enforcement of the three-feet rule can vary slightly by state, the intent is always the same. The intent is to reduce the risk of sideswiping a cyclist and to create a buffer that accounts for sudden movements or road hazards.
Why Three Feet?
Three feet is not an arbitrary number. It’s a safety buffer meant to account for:
- Unexpected swerves by the cyclist (for example, in order to avoid debris or potholes),
- Wind gusts from passing vehicles that can destabilize a bike, and
- Driver error in judging space between the car and the cyclist.
Giving at least three feet is a practical way to reduce risk without needing perfect driving precision.
What Drivers Need to Know
In adhering to the three-feet rule, drivers should:
- Slow down – If you can’t pass safely with three feet of clearance, wait until you can.
- Be patient – Cyclists have the legal right to use the full lane in certain conditions, such as when the lane is too narrow to share.
- Check your mirrors and blind spots – Always look carefully before passing or turning, especially in areas with bike lanes or heavy bike traffic.
- Avoid honking unnecessarily – Honking can startle a cyclist and cause them to veer into danger.
What Cyclists Need to Know
To ensure their safety on the road, cyclists should:
- Ride predictably: Don’t weave in and out of traffic or parked cars.
- Stay visible: Wear bright clothing, use lights, and position yourself where you can be seen.
- Know their rights – In many areas, you are entitled to take the lane if necessary for safety.
- Signal their intentions: Use hand signals to indicate turns or stops.
What Happens If the Three-Feet Rule Is Violated?
When a driver violates the three-feet rule and causes an accident, they can be held liable for any resulting injuries or damages.
In civil court, a violation may be used as evidence of negligence.
Also note that in some states, violating this rule may also result in traffic citations or fines—even if no accident occurs.
Contact Justice Through Compensation for Help
If you or a loved one was injured in an accident, please know that the law firm of Justice Through Compensation is here to help. Our legal team is skilled, experienced, and passionate in their representation. Let us shoulder the burden of an injury claim or lawsuit while you focus on healing from your injuries. Contact us today for the quality legal help you deserve.
* Main image at top by freepik