For the problem of winter snow melting in cities, the current environmental protection practice in European and American countries is to sprinkle charcoal, coarse sand, tree branches, and other substances on the road after mechanical snow removal to prevent slipping. The dark color of these substances is also used to absorb the heat of the sun and increase the ground temperature to melt snow. The used charcoal residue and tree branch residue can be placed in the green space next to the road without pollution.

For roads that require snow melting agent, first use a snowplow to sweep away most of the snow on the ground, and then sprinkle a small amount of snow melting agent to prevent icing on the road. And make full use of surface heat, solar radiation heat, and the heat released by the car during driving to help melt snow on the road. To prevent saltwater from seeping into the ground or contaminating surface water after snowmelt.