Percent of overall vehicle fatalities that are truck drivers: 8.8%
"North Dakota is a big place, but the only time I had problems was in the winter due to icy road conditions, coupled with the need to make good miles. The envelope was often stretched in terms of safety.
"Driving west to east in bad weather would often mean that your left side would be at minus 10 inside the truck, whilst the rest of you was warm. Then there was the blowing snow to contend with, which piled up in ridges, and whenever someone overtook you would have a 'whiteout' for many moments and the danger of losing control of the truck.
"Four-wheel drivers also caused many accidents in bad weather due to their inability to drive to the conditions, and they would often be crawling along at 20 miles per hour in conditions where you could drive faster, safer." — Mick Flynn
"Roads can be slippery, and big trucks can end up in ditches. Shoulders are often covered with snow, and they are hard to see.
"If a heavy truck goes on the shoulder, it can get pulled in the ditch. Also, small two-lane roads can have deep snow on them (when they are not plowed), and you can just get stuck. Modern highway trucks are not designed to 'off road.'
Last but not least, if the traffic stops suddenly, big trucks need more stopping distance on snowy/icy roads. Daylight is short, and you often have to drive after dark, when deer and moose like to stroll around." — Sergei Dratchev