“There are times when we have difficulty controlling a car in those conditions (our weather forecast is for 6 inches of snow later today and tonight).”
I suspect that the “self-driving vehicle” will say “I’m not going out in this,” which is what the idiots we see on the news sliding into each other on the icy roadways. My new car actually tells me when the road is likely to be frozen with a warning.
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Hypothetical scenario: I drive to work and while there it snows - what are my options now? Drive home? Stay at work? Go to local hotel? Seriously.