Watch out for that tree. And that pedestrian, and that street light, and that strange bump in the sidewalk, and that abandoned scooter someone just left lying there…
In September 2017, Tarak Trivedi, an emergency room doctor, and Catherine Lerer, a personal injury attorney, started seeing electric scooters everywhere. Santa Monica, California, where they live, was the first city where the scooter company Bird rolled out its rechargeable two-wheelers, which could be rented with a smartphone app and dropped off anywhere. Lime and other scooter companies soon followed. As riders zipped down the street, reaching speeds of 15 miles per hour without helmets, both Trivedi and Lerer thought of the inevitable injuries.
Soon enough, victims of e-scooter accidents, both riders and pedestrians, began to show up in the ER. “I started seeing patients who had significant injuries,” Trivedi recalls. Calls about scooter-related injures poured into Lerer’s office. She says she now gets at least one new call a day. “We recognized that this is a very important technological innovation that has a significant public health impact,” Trivedi says.
More than a year after the Birds landed, Trivedi and researchers at the University of California-Los Angeles have authored the first study to quantify the public health impact of e-scooters. Their peer-reviewed study, published in JAMA Network Open, details 365 days of scooter crashes, collisions, and wipeouts. Digging through records from two Los Angeles-area emergency rooms, the researchers found 249 patients with injuries serious enough to warrant a trip to the ER. In comparison, they found 195 bicyclists with injuries and 181 pedestrians with similar injuries during the same period.
The goal of the study was to characterize how people were getting hurt, as well as who was getting hurt. Of the 249 cases the study looked at, 228 were riders, most of whom were brought to the ER after falling, colliding with an object, or being hit by a moving vehicle. The other patients were injured after being hit by a rider, tripping over a scooter in the street, or getting hurt while attempting to move a parked scooter. About 31 percent of patients had fractures, and around 40 percent suffered from head injuries. Most were between the ages of 18 and 40; the youngest was eight and the oldest was 89. While many of the injuries were minor, severe and costly injuries like bleeding in the skull and spinal fractures were also documented. Fifteen people were admitted to the hospital.
Trivedi thinks that the actual number of scooter injuries was likely higher, since the study took a conservative approach to tallying up patients, focusing only on standing electric scooters and dropping many ambiguous cases. (It also eliminated instances where riding a scooter was not the cause of a scooter-related injury—such as assaults where a scooter was used as a weapon, or injuries during attempts to steal a scooter.)
That’s from California, and it’s a partial picture of what has been observed in Los Angeles, based on two emergency rooms. The authors didn’t extrapolate from there, but it’s clear there would be a lot more than just what they focused on. That’s the first study of its kind of scooter injuries, but we do have some anecdotal evidence from Texas cities where the scooters have invaded, including San Antonio, Austin, and Dallas, where there has also been one reported fatality, though it is not clear if that person (the victim of a hit-and-run) had been using the scooter at the time of his death.
Let’s be clear, cars cause vastly more havoc every day than scooters do. The magnitude of injury and death resulting from our automobile-centric culture just dwarfs anything even an onslaught of electric scooters can do. In the long run, more scooters may lead to less vehicular damage, if it means more people rely on them in conjunction with transit to take fewer trips by car. That doesn’t mean we should ignore or minimize the potential for injury that scooters represent. It’s up to cities and states to figure out how to regulate these things in a way that maximizes their benefit and minimizes their risk. That means we need good data about the real-world effect of scooter usage, and we need to avoid being unduly influenced by the scooter companies and the venture capital behind them. Let’s pay attention to this stuff and be responsible about what we learn.