Icy sidewalks occur when water freezes on the surface of walkways, creating a layer of ice. This can happen during winter months when temperatures drop below freezing, especially after rain or melting snow. The ice can make walking hazardous, increasing the risk of slips and falls. To prevent accidents, many people use salt or sand to treat icy sidewalks. Salt lowers the freezing point of water, helping to melt the ice, while sand provides traction. Regular maintenance and caution are essential for safe navigation on icy surfaces, especially in urban areas where foot traffic is high.