What is the function of snow chains on icy roads?

[VonJasper]

Snow chains provide anti-slip functionality on icy road sections. For large trucks, iron snow chains offer better anti-slip effects when the road surface is icy and slippery, while private cars can use rubber snow chains. The more common types of snow chains include iron snow chains, polyurethane (nylon) snow chains, and rubber snow chains. There are some precautions for installing snow chains: they need to be installed on the drive wheels. For four-wheel-drive vehicles, all four wheels should be equipped; for two-wheel-drive vehicles, they should be installed on the drive wheels, though installing them on all wheels would be more secure. After installing the snow chains, drivers should control their speed during driving, remember to slow down, and try to keep the speed below 40 km/h. Avoid sudden acceleration, sudden braking, and sharp turns. If driving on normal road surfaces, the snow chains should be removed promptly. Continuing to use snow chains on normal roads will restrict the driver's control, affect driving and riding comfort, and may cause some degree of damage to the vehicle.