Enhancing traction in challenging winter conditions, such as snow and ice, is achieved by securing chains around the tires of a four-wheel-drive vehicle. This practice provides increased grip, enabling safer navigation on slippery surfaces. For example, a vehicle equipped with chains can ascend a snow-covered incline more easily than one without.
Improved vehicle control and stability in adverse weather contribute significantly to road safety. This added security is particularly crucial for emergency vehicles and those operating in mountainous or remote areas during winter. Historically, chains have been essential for winter travel, predating modern four-wheel-drive systems. While these systems offer significant improvements in traction, they can sometimes prove insufficient in extreme conditions, making chains a vital addition for optimal performance and safety.