As a part of obtaining my "Snow Licence" ( Hazardous Area Authority ) I did that in a 12 metre bus. Very interesting..... still, nothing compared to what the London bus drivers used to do.
And yeah, black ice, as we called it, takes no prisoners. All we really learned was how to spot likely places for it to form.
In Aus the most likely way of coming across ice is another driver off their face on ice.
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