Can Tesla Data Help Us Understand Car Crashes?
By Cade Metz and Ella Koeze
Aug. 18, 2022
Shortly before 2 p.m. on a clear July day in 2020, as Tracy Forth was driving near Tampa, Fla., her white Tesla Model S was hit from behind by another car in the left lane of Interstate 275.
It was the kind of accident that occurs thousands of times a day on American highways. When the vehicles collided, Ms. Forth’s car slid into the median as the other one, a blue Acura sport utility vehicle, spun across the highway and onto the far shoulder.
After the collision, Ms. Forth told police officers that Autopilot — a Tesla driver-assistance system that can steer, brake and accelerate cars — had suddenly activated her brakes for no apparent reason. She was unable to regain control, according to the police report, before the Acura crashed into the back of her car.
But her description is not the only record of the accident. Tesla logged nearly every particular, down to the angle of the steering wheel in the milliseconds before impact. Captured by cameras and other sensors installed on the car, this data provides a startlingly detailed account of what occurred, including video from the front and the rear of Ms. Forth’s car.
It shows that 10 seconds before the accident, Autopilot was in control as the Tesla traveled down the highway at 77 miles per hour. Then she prompted Autopilot to change lanes.....
nytimes.com |
