The Delivery Robot on the Sidewalk Clipped a Pedestrian: Who Answers When an Autonomous Courier Causes an Injury?
A 73-year-old parking attendant is suing Starship Technologies over a 2023 incident at Arizona State University in which, according to her lawsuit, a six-wheeled sidewalk delivery robot reversed into her, knocked her down, and then reversed into her a second time while she was on the ground. The claimed injuries include a spinal fracture.
This is a filed complaint with a trial date, not a hypothetical. And it forces a question the sidewalk-robot industry has mostly avoided answering out loud: when an autonomous courier hurts someone, who, exactly, is the defendant? The answer depends less on the robot than on the scenario it was in when it hit you.
The Pedestrian the Robot Reversed Into
Start with the simplest case: a person on foot, a robot on a sidewalk, direct contact, visible injury. On paper, this looks like any other premises or product injury. In practice, it splits into two overlapping theories a plaintiff’s lawyer will usually plead together.
The practical consequence for the person who got hit: identify every entity in the chain before you talk to anyone’s insurer. The brand on the lid, the operating company, the remote-pilot vendor, the campus or municipality that licensed the pilot program, and the retailer who dispatched the order can all be different companies. Experienced personal injury attorneys tend to name several of them and let discovery sort out who was actually in control of the device at impact.
The Cyclist Clipped in a Crosswalk
A delivery robot leaving the curb to re-enter a sidewalk is a different kind of hazard than one rolling straight ahead. It crosses the path of bikes, scooters, and wheelchairs that are moving faster than it is and reading the intersection the same way they read any other low obstacle.
Those collisions happen. The New Jersey Bicycle and Pedestrian Resource Center has documented a Jersey City incident in which a sidewalk robot and a cyclist collided, leaving the rider with a concussion and a broken clavicle.
These cases get argued on right-of-way, not technology. Was the robot required to yield before leaving the curb cut? Did it have the equivalent of a pedestrian’s duty, a vehicle’s duty, or something the local code never actually defined? The answer varies by jurisdiction, and in a lot of places the rule simply has not been written yet.
That ambiguity helps the plaintiff. A device that cannot point to a clear statutory right to be there has a harder time claiming the cyclist was the one who misbehaved.
The Wheelchair User the Robot Blocked
Not every injury is a collision. A stalled delivery robot parked across a curb ramp can force a wheelchair user into traffic, and a disability-rights claim can attach to the operator, the property owner, or the municipality that permitted the deployment without accessibility conditions. This category gets the least attention and is probably growing the fastest, because the robots do not have to touch anyone to create liability.
The defense here is almost always that the robot was supposed to detect the obstruction and move. The response is almost always the robot’s own telemetry, which will show exactly how long it sat there and whether a remote operator was pinged.
The Robot That Ran Into Another Robot
Autonomous couriers increasingly share space with autonomous vehicles, and when two of them meet at an intersection, the resulting mess has no obvious human defendant. Documented low-speed collisions between robotaxis and sidewalk delivery units have already happened, with one autonomous system turning across the path of another as it tried to mount a curb.
Nobody was seriously hurt in those early incidents. The first serious bystander-injury case between two autonomous systems will probably settle out of view, precisely because neither company wants a published opinion assigning fault between algorithms.
The Permit Nobody Read Closely
Behind most of these scenarios sits a patchwork of state and city rules that few pedestrians have paid much attention to. Some states cap the robot’s weight and speed and require a minimum insurance policy per device. Others have not legislated at all, and a handful have told operators to stay off public right-of-way entirely until they do.
For an injured person, the permit file is often where the case gets interesting. Was the device operating in a jurisdiction that required one? Was the insurance in force? Did the operator exceed the posted speed or weight limit?
Those are regulatory questions with civil consequences, and they are usually answerable from public records before a lawsuit is even filed.
Liability Is Still Catching Up to the Technology
The robots are not going away, but the rules governing what happens when they injure someone are still being written. For now, liability may depend on a mix of traditional negligence law, local permitting requirements, product-liability theories, and the contracts dividing responsibility among the companies involved.
That makes these cases less about whether a machine can be held responsible and more about which people and companies were responsible for putting it on the sidewalk, monitoring it, and keeping it there safely. The robot may be autonomous, but the legal responsibility behind it isn’t.
