On or near a roadway is a very dangerous place to be a pedestrian, especially at the scene of any vehicle collision.
I remember seeing an accident that involved a car sliding on ice sideways at slow speed until it came to rest against the concrete jersey barrier. The passengers got out of the car to inspect it for damage. I saw a semi-truck and trailer having the same problems and it slid towards the car. One of the passengers dove over the barrier to avoid getting squished by the truck. Only problem was it a was on an overpass crossing the river and that person died from the fall/drowning.
This was on a super-elevated (high banked) curve and the ice storm made it nearly impossible to stay on the road at such slow speed. The only way I made it through was by staying as far right and as high on the banking that I could.