3 ms·
That video also seems like they were driving insanely fast on a foggy day. Quite possibly setting the speed offset way higher than the speed limit. A human coul
by dheera 2y ago
That video also seems like they were driving insanely fast on a foggy day. Quite possibly setting the speed offset way higher than the speed limit. A human could have easily not seen the train as well at that speed.
During fog your speed limit should be determined by your braking distance and visibility. Period.
I wonder whether the autopilot would have performed better if travelling at a more reasonable speed.
- robryan 2y agoYou can see the flashing light from way back. You would also probably hear the train.
- GuB-42 2y agoHe doesn't seem to drive that fast, he drove at a constant speed only to stop at the very last second. Had he been driving too fast, he would have been right into the train and probably not here to post on Twitter. The car didn't slow down even as the train was clearly visible. An attentive human would have not only seen the train but also the very obvious flashing lights and have absolutely not problem stopping in time. EDIT: From the link, it seems FSD was set by the car to about 61~63 MPH on a 55 MPH road, which is the speed most people drive on ( https://teslamotorsclub.com/tmc/threads/ap-fsd-related-crashes.264798/page-9#post-8264597 https://teslamotorsclub.com/tmc/threads/ap-fsd-related-crash... ). Considering the conditions, it is a little fast, but not unreasonably so. It took about 5 seconds from seeing the train to the crash, most of it at constant speed, so, a distance of about 140m. At that speed, stopping distance is about 100m, enough to stop in time. And that's for the unlit train, lights can be seen from much further as they are all visible at the start of the video.