Comment by ggreer
1 day ago
Pretty much all electric cars have single speed transmissions, so there's no downshifting. And modern vehicles have electronic stability control, anti-lock brakes, automatic emergency braking, and several other safety systems. It's pretty hard to overreact with those enabled. The main issue is that people exceed safe speeds for the conditions, making them unable to brake or turn in time to avoid a collision.
Right now, most self-driving software will refuse to activate in conditions of poor visibility. I've had that happen with Tesla's FSD, though in that case it was snowing so much that the road should have been closed. Also when the snow is deep enough that your front bumper becomes a plow, it will refuse to activate.
> And modern vehicles have electronic stability control, anti-lock brakes, automatic emergency braking, and several other safety systems
In ice none of these really stop overcorrection, or at least they don't in my 2020 truck on icy hill/mountain roads in Maine. And I've seen nice recent Volvos and BMWs with presumably the best safety tech in ditches up in the ski towns. The correct safe speed to drive on icy roads is not to drive at all of course, but people have to get places and people make mistakes. IME the assistive technology defaults don't do great on ice roads on some kind of up/down grade.
AFAIK drivers can still steer and brake themselves into a loss of control situation on ice regardless of safety features. So I guess I'm hoping once you take those two variables out of their hands, the FSD vehicles will be safer. Who knows though.
I went many years without a loss of control and the one time it did happen (logging roads with ice pack) was enough for me to buy Nokian studded winter tires to minimize the effect of ice as much as possible.
on the contrary, no amount of safety systems can compensate for a loss of traction on ice and snow.
The surest way to be safe on snow covered roads is to not drive at all. Also, none of the electronic trickery is a replacement for real winter tires, which many people do not buy.