Dooring Accidents: When a Parked Car Door Injures a Cyclist in PA

I am Sean Quinlan, and dooring is the crash riders fear most in Philadelphia and Pittsburgh, because there is no defensive maneuver that reliably works. A door opens inside your reaction distance and you either strike it or swerve into a travel lane. Both outcomes produce serious injuries. Both are the fault of the person who opened the door.

The rule

75 Pa. C.S. § 3705 provides that no person may open a door on a motor vehicle unless it is reasonably safe to do so and can be done without interfering with the movement of other traffic. It also requires that a door not be left open longer than necessary to load or unload passengers.

Two things follow from that. First, the duty belongs entirely to the person opening the door — it is not conditioned on the cyclist doing anything in particular. Second, because 75 Pa. C.S. § 3501 gives a cyclist all the rights and duties of the driver of a vehicle, a rider in the travel lane or the bike lane is unquestionably “other traffic” within the meaning of § 3705.

The door zone is not a rider error

The insurer’s first move in a dooring case is to argue that the rider should not have been riding in the door zone. That argument fails on the statute. 75 Pa. C.S. § 3505 requires riding as near to the right as practicable, and then expressly permits leaving that position to avoid hazards, specifically including opening car doors and parked vehicles, and whenever a lane is too narrow to share safely with a passing car.

In other words, Pennsylvania law contemplates that a rider will move left to stay out of the door zone. It also contemplates that many bike lanes are striped directly inside it, leaving no lawful alternative. A rider who was in the marked bike lane where the city put it is not negligent for being where the paint told them to ride.

Who can be liable

• The person who opened the door — driver or passenger. A passenger owes the same duty.
• The vehicle owner’s liability policy, which typically covers permissive users and occupants.
• A commercial employer, where a delivery driver, contractor, or company vehicle occupant opened the door in the course of employment. This matters, because commercial policies carry far higher limits.
• A rideshare or taxi company, where a passenger exited curbside into a bike lane. Rideshare commercial coverage may apply depending on the driver’s app status at the time.
• A second driver, where the rider was doored into a travel lane and then struck by a passing vehicle. That is two defendants and two policies, and both need to be preserved from day one.

Proving the case

Dooring cases are frequently disputed on the mechanics — the door occupant will say the door was already open and the rider simply hit it, or that the rider swerved without cause. The evidence that resolves it:

• Door damage geometry. Where on the door the impact landed, and whether the hinge is sprung, distinguishes a strike on a stationary open door from a door swung into the rider’s path.
• Bicycle damage. Fork, front-wheel, and handlebar damage tells a reconstructionist the impact angle and closing speed.
• Rider camera footage. Decisive where it exists. Download and back it up immediately.
• Business and doorbell video. Curbside cameras are dense in city corridors and overwrite fast.
• Roadway documentation: bike lane striping, buffer width, and where the lane sits relative to the parking lane.
• Rideshare and delivery records, which establish app status, employment, and which commercial policy is in play.

Injuries and the second impact

Dooring produces clavicle and scapula fractures, wrist and elbow fractures, facial injuries, and concussion — and where the rider is thrown left into moving traffic, the secondary impact is often the catastrophic one. Report every symptom at the first medical visit, including headache, confusion, and memory difficulty. A helmet that cracked did its job and still does not rule out a brain injury.

Comparative fault and coverage

Under 42 Pa. C.S. § 7102, damages are reduced by the rider’s share of fault and barred only above 50 percent. In dooring cases the fault argument is narrow, because the statutory duty runs one direction, but insurers still press lane position and speed. The statutory exceptions in § 3505 and the physical evidence are the answers.

On coverage: a cyclist is not an occupant of a vehicle, so no first-party medical benefits attach. Health insurance pays first. Uninsured and underinsured motorist coverage follows the insured person in Pennsylvania and frequently supplements a low-limit personal auto policy on the parked car — collect every household declarations page. And under 75 Pa. C.S. § 1705(d)(3), a person injured while occupying something other than a private passenger motor vehicle is generally not bound by a limited tort election, with § 1705(b)(3) governing where there is no household policy.

Deadlines

Two years from the date of the crash under 42 Pa. C.S. § 5524. If a municipal bike lane design or maintenance failure is part of the claim, written notice is due within six months under 42 Pa. C.S. § 5522, with caps under §§ 8528(b) and 8553(b).

See the Pennsylvania pedestrian and bicycle accident lawyer page for the full approach, the comparison to a car accident claim for the coverage differences, and the Philadelphia bicycle accident guide for city-specific issues.

Talk to me about your crash

If a car door put you down, the vehicle, the bike, and the curbside video all carry evidence that will not last. Consultations are free and confidential, and there is no fee unless we recover. Request a free case review.

Serving injured Pennsylvanians in: Harrisburg.