Dooring accidents and your rights as a Massachusetts cyclist

For a cyclist, few things on the road are as sudden or as dangerous as a car door swung open into the bike lane. There is rarely time to stop or swerve, and the result, a dooring accident, can throw a rider into the pavement or into moving traffic. In a city like Boston, where bikes, parked cars, and traffic share narrow streets, dooring is one of the most common and most preventable bicycle crashes, and the question that follows is almost always who was at fault.

The encouraging answer, for injured riders, is that Massachusetts law is clear about a driver or passenger’s duty before opening a door, and clear that cyclists have the right to be on the road. But knowing the law is not the same as proving a claim, and insurers have a familiar set of arguments aimed at shifting blame onto the cyclist. This article explains how dooring happens, who is at fault, your rights as a Massachusetts cyclist, and how to protect a claim after a crash.

How dooring crashes happen

Dooring is a specific kind of bicycle crash, and understanding how it happens explains both why it is so hazardous and why the law treats it the way it does.

How a dooring accident happens

A dooring happens when a person in a parked or stopped car opens a door into the path of an oncoming cyclist. The rider, often traveling at a normal pace and with no reason to expect a door to appear, has almost no time to react. Some are struck by the door itself; others swerve to avoid it and are thrown, sometimes into the travel lane and into the path of a passing vehicle, which can turn a serious crash into a catastrophic one. The “door zone,” the few feet alongside a row of parked cars, is a known hazard, but cyclists frequently have no choice but to ride in or near it because of how streets are laid out.

Why these crashes hurt so much

Because a dooring is sudden and the cyclist is unprotected, the injuries can be severe even at modest speeds. Riders suffer broken bones, shoulder and wrist injuries from the fall, facial and dental injuries, and head and brain injuries, and the secondary impact, being thrown into traffic, can cause far worse. The mismatch between an unprotected rider and a steel door or a moving vehicle is the reason a crash that looks minor on paper can change someone’s life, and it is the reason these claims deserve to be taken seriously rather than brushed off as a cyclist’s bad luck. A rider who seems to walk away sore can still be carrying an injury that surfaces only days later.

Where riders get doored most often

Dooring is concentrated where parked cars and bicycle traffic are forced close together, which describes much of urban Massachusetts. Busy commercial streets with curbside parking, blocks where a bike lane runs immediately beside parked cars, and rideshare pickup and drop-off zones are all common settings. The pattern is not random; it follows street design that leaves cyclists little room outside the door zone. That context matters in a claim, because it helps explain why a careful rider still had nowhere safe to go, and it pushes back on the assumption that a doored cyclist must have been doing something wrong.

Fault in a dooring crash

In most dooring cases, the law places the duty squarely on the person who opened the door, and that legal starting point shapes the whole claim.

The driver or passenger has to look first

Massachusetts has a specific statute on point. Under MGL c. 90, § 14, no person may open a door on a motor vehicle “unless it is reasonably safe to do so without interfering with the movement of other traffic, including bicyclists and pedestrians.” In plain terms, the law requires whoever opens a door, driver or passenger, to look first and make sure it is safe. When someone opens a door into a cyclist’s path, that statute is usually the foundation of the claim, because it sets a clear duty and a clear breach. A violation can also serve as evidence of negligence, which is one reason dooring claims often start on stronger footing than the cyclist expects.

Passengers and rideshare doors

The duty is not limited to drivers. A passenger who flings open a rear door without looking can be just as responsible as a driver, and dooring by passengers has become more common with the rise of rideshare, where riders are dropped off curbside and step out into bike traffic. Depending on the circumstances, responsibility may fall on the passenger who opened the door, and sometimes on the driver or the rideshare company’s insurance, which makes identifying every potentially responsible party an important early step in these cases.

More than one party may be responsible

Some dooring crashes involve more than one at-fault party. A rider doored into the travel lane may then be struck by a passing motorist who was following too closely or not paying attention, adding a second responsible party. A poorly designed bike lane routed directly through the door zone can raise questions about the entity that designed it. Sorting out who is responsible, and in what share, is part of what makes these cases more involved than a simple two-party crash, and it directly affects what the claim is ultimately worth.

The push to blame the rider

Even with a statute that places the duty on the person opening the door, insurers routinely try to shift responsibility to the rider, arguing the cyclist was going too fast, was not paying attention, or could have avoided the door. Some of these arguments are simply wrong on the facts, and others ignore how little time a cyclist has to react when a door appears a few feet ahead. The point is not that a rider can never share fault, but that fault should be decided on what actually happened, measured against what the law required of the person who opened the door, not on an assumption that the cyclist is to blame for being on the road at all.

A cyclist’s rights on the road

A great deal of what insurers argue in bicycle cases runs contrary to what Massachusetts law actually says about a cyclist’s place on the road. Knowing those rights is essential to answering the blame-the-cyclist playbook.

Cyclists have the right to the road

Under MGL c. 85, § 11B, a person operating a bicycle has the right to use all public ways in the Commonwealth, except certain limited-access highways where bikes are specifically prohibited, and is subject to the same traffic laws as other drivers. The statute also expressly allows a cyclist to keep to the right when passing a motor vehicle moving in the travel lane. A cyclist riding lawfully is not a trespasser or an obstacle; they have a legal right to be there, and that principle is the backbone of answering arguments that a rider “should not have been in the road.”

The duties that come with those rights

The same statute that protects cyclists also sets duties for them, and acknowledging that honestly makes a claim stronger, not weaker. Cyclists must obey traffic signals and signs, signal turns and stops when it is safe to do so, use lights at night, and ride in a way that does not needlessly endanger others. A rider who was following these rules is in a powerful position, because it removes the insurer’s easiest counterarguments. Knowing both sides of the statute, what it requires of drivers and what it requires of cyclists, is part of building a claim that holds up rather than one that can be picked apart.

The safe-passing and right-hook rules

The same statute that governs dooring, MGL c. 90, § 14, also requires drivers to give cyclists room and care in other situations. A driver passing a cyclist, treated as a vulnerable user, must pass at a safe distance of at least four feet and at a reasonable speed. A driver who has passed a cyclist may not then make a right turn across the rider’s path unless it can be done safely, the maneuver known as a “right hook.” These rules reflect a consistent legislative judgment that the burden of caution falls on the operator of the heavier, more dangerous vehicle, and they often matter in bicycle crashes beyond dooring.

Two insurer arguments the statutes undercut

Insurers love two arguments in bicycle cases, and Massachusetts law undercuts both. First, they suggest the rider is to blame for not wearing a helmet; but for the adult riders to whom no helmet requirement even applies, and for younger riders under the helmet law, the statute provides that a helmet violation cannot be used as evidence of contributory negligence in a civil action. Second, they argue the cyclist was at fault simply for riding to the right of traffic; but MGL c. 90, § 14 states plainly that “it shall not be a defense for a motorist causing an accident with a bicycle that the bicycle was to the right of vehicular traffic.” Recognizing these arguments for the weak legal ground they stand on is a large part of protecting a bicycle claim.

What it takes to prove the claim

A favorable legal framework still has to be backed by evidence, and bicycle claims have their own proof challenges that reward acting early.

Evidence that makes the difference

The strongest bicycle claims are built from evidence gathered quickly: the police report, photographs of the scene, the door, the bike, and the injuries, the names and statements of witnesses, and any nearby surveillance or dashcam footage that captured the crash. The position of the door, the bike, and the rider can establish how the crash happened and answer later disputes. Because memories fade and footage is often overwritten within days, gathering this material promptly can be the difference between a clear account and a he-said-she-said, especially when dealing with the driver’s insurer later.

Documenting injuries over time

Bicycle injuries have a way of revealing themselves over days and weeks. The wrist that seemed merely sore turns out to be fractured; the headache after a fall becomes a lingering concussion. Following through on medical care and keeping a record of how the injuries affect daily life is part of proving the full extent of the harm, and it directly shapes the pain and suffering a serious crash causes. A claim that captures only the emergency-room visit and not the months of recovery that follow undersells the injury, which is exactly what an insurer hopes a rider will do on their own.

How comparative fault cuts into recovery

Massachusetts follows a modified comparative negligence rule under MGL c. 231, § 85, which reduces a rider’s recovery by their share of fault and bars it entirely if they are found more than half responsible. This is exactly why insurers work so hard to assign blame to the cyclist, with the helmet and to-the-right arguments and others like them. Understanding how comparative negligence is applied, and answering each fault argument with the facts and the statutes, protects both whether a rider recovers and how much.

The motor-vehicle insurance angle

Because a dooring involves a motor vehicle, the crash usually falls within the motor-vehicle insurance system, which affects how a claim is handled and paid. Where the case is treated as arising from the use of a motor vehicle, the statutory tort threshold under MGL c. 231, § 6D can come into play for recovering pain-and-suffering damages, a threshold that serious bicycle injuries generally meet. The interaction between the driver’s auto coverage, any available rideshare coverage, and the cyclist’s own policies is one of the more technical parts of these claims, and getting it right is part of recovering fully.

Deadlines and early steps

Even a strong dooring claim can be lost on timing, and the steps a rider takes early shape everything that follows.

The filing deadline

A bicycle accident claim in Massachusetts generally must be filed within three years of the crash under MGL c. 260, § 2A. Three years can feel comfortable, but evidence in bicycle cases, especially surveillance footage and witness memories, disappears far sooner, and if a city or public entity is involved because of a roadway or bike-lane design issue, much shorter notice deadlines can apply. Confirming the right deadline for your specific situation early is one of the simplest ways to keep a claim alive.

The case for moving quickly

Bicycle claims reward early action more than most. The surveillance video that shows the door opening may be recorded over within days. The witness who stopped at the scene is far easier to reach now than months later. The bike and the damaged door, photographed before they are repaired, can settle a dispute that would otherwise come down to competing stories. Acting early is not about rushing into litigation; it is about preserving the proof while it still exists, the same discipline that strengthens the full range of injury cases we handle. For a doored cyclist, the difference between a documented claim and a disputed one is often made in the first week after the crash.

What to do after a dooring crash

The right steps after a dooring crash are straightforward but easy to miss in the moment. Get medical attention, even if the adrenaline makes you feel fine, because head and internal injuries are not always obvious at the scene. Call the police and make sure a report is created. If you are able, photograph everything, the door, the cars, your bike, the lane, and your injuries, and get the names of witnesses. Be cautious about giving a recorded statement to the driver’s insurer before you understand your rights, because early statements are routinely used to build the comparative-fault arguments described above. And keep everything connected to the crash, the damaged helmet and bike, the torn clothing, the medical paperwork and bills, because in a bicycle case those physical items and records often tell the story more convincingly than any later description can.

If you were injured in a dooring or other bicycle crash in Massachusetts, the Massachusetts bicycle accident attorneys at Larson Law can preserve the evidence, identify everyone who may be responsible, and answer the arguments insurers use to shift blame onto riders. You can reach our team here or call 508-888-8888 to talk through what happened, at no cost. The law gives Massachusetts cyclists real protection, and the sooner a claim is investigated, the easier it is to hold the right people accountable for it. A bicycle crash is not simply bad luck when someone else failed a duty the law spells out, and you should not have to absorb the cost of that on your own. Finding out where you stand costs nothing, and it is far better to learn your rights while the evidence is still fresh than to wonder later whether a claim quietly slipped away before you ever knew it was there.

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