About 70 percent of deaths related to ice and snow occur in automobiles. VDOT Officials say anti-icing treatment keeps snow from bonding with pavement BUT still warns drivers to be careful on the roads. Frigid polar air is expected to descend on the region behind the snow and prolonged cold could mean area streets will be icy in the mornings and evenings, especially as sunlight melts some snow during the day, refreezing it at night leading to dangerous driving conditions on bridges, overpasses, curves, hills and ramps; and unexpected hazardous in shaded areas of roads. Experts say leave early, stay back from other vehicles and slow down.