Autopilot is following the strong white line to the left, which is what the simple system is designed to do.<p>It (currently) follows road markings, and/or the car in front. That's it, and that's why you don't leave it unattended - spoken as a Model X owner.<p>As a Brit, I'm astounded at the US road design. You'd never see something like that over here, and I've never seen motorway (freeway) lane markers so worn away.<p>Autopilot did what it is designed to do, which in this case was the wrong thing. The driver was not paying attention, which is easy to do when you have no physical buttons in the car and often operate a touchscreen. The poor state of the road also contributed, both with the lack of steel barrier and the worn-out markings.<p>Will road markings be kept in better condition for the sake of self-driving cars, I wonder?<p>Would LIDAR have helped, or would the presented surface area of the concrete block be too small to act upon?