Motorists expect to see slow moving plows and other winter maintenance equipment during and after storm events when snow and ice are present. What some drivers may not know is that slow moving plow trucks are also often on the road prior to a storm, applying salt and/or deicer to help reduce the accumulation of ice and prevent snow from bonding to the pavement.  Because salt needs to mix with moisture to activate, applying it on wet roads just before freezing temperatures is ideal.