Here is an interesting video from winter weather in Wisconsin that shows a very dangerous pileup that occurred over a 5 minute period. So many cars driving too fast for conditions caused continuous wrecks.
If you get into a dangerous situation like this, malady use extreme caution and consider staying in your vehicle or at least get out of the way of oncoming traffic. This video shows people getting out to look or help other drivers and continually putting themselves in harms way.
Watch the whole video and see the dangers that unfold. Knowing what could happen might save your life. Be safe.