In countries near to polar region, the roads are sprinkled with ${\mathrm{CaCl}}_2 .$ This is done 

In countries near to the polar region, the roads are sprinkled with calcium chloride to minimize the snowfall as it decreases the freezing point of ice as a result the snow melts into a liquid state which minimize the wear and tear of roads. Thus, calcium chloride acts as a de-icing agent.