Does the Adhesion Increase or Decrease on Ice and Snow Roads?

[LeMichael]

When driving on ice and snow roads, the road adhesion decreases. Additional Information: I. Introduction to Ice and Snow Roads: Generally refers to snow-covered roads, compacted snow roads, snow-turned-ice roads, and ice roads. The most significant characteristic of ice and snow roads is their low adhesion coefficient, which is only 10%~20% of that of dry and well-paved roads. A low adhesion coefficient results in reduced adhesion. II. Ways to Improve Vehicle Adhesion on Ice and Snow Roads: 1. Use snow tires. 2. Utilize four-wheel drive. 3. Use snow chains. Note: Changing to snow tires is the best method as it directly increases the adhesion between the tires and the road. Snow chains are less commonly used due to their inconvenient installation and potential damage to both tires and road surfaces.

[IkerRose]

Icy roads definitely reduce traction, and I have a deep understanding of this. Imagine the tires sliding on icy or snow-covered roads, where the coefficient of friction drops significantly, just like skating on the ground. The vehicle's grip weakens noticeably, especially during acceleration, turning, or braking, making it particularly difficult to control. I’ve personally seen a friend slam on the brakes in such conditions, only for the car to skid out, increasing the risk of an accident. The main reason is the smooth surface of ice reduces the contact area between the tires and the road, coupled with melted water forming a thin film, making the wheels more prone to spinning or slipping. To drive safely, I always recommend switching to winter-specific tires, which have deeper treads to enhance friction. Additionally, it’s crucial to slow down, staying below the speed limit, and using four-wheel drive mode when necessary. Remember to check tire pressure and wear before setting off in rain or snow—this can prevent many issues.

[LeLorenzo]

Driving on snow and ice-covered roads definitely reduces traction, and I can feel the instability while driving. In winter, the roads become as slippery as if they were greased, and the tires' grip drops sharply—simply put, friction decreases. The result? Braking distance may more than double, and even slight acceleration can cause wheel spin and loss of control. This stems from the physical properties of snow and ice: the smooth ice layer combined with accumulated snow blocks direct friction between the tires and the road. I once had a minor accident under such conditions, and since then, I've started using snow chains or winter tires, which can increase the friction coefficient. When driving, it's also essential to press the throttle and brakes gently and avoid sharp turns. Other tips include clearing snow from the car to ensure visibility and checking the weather forecast before driving to avoid high-risk periods. Safety comes first, and developing good habits can save a lot of trouble.

[ArthurLynn]

The traction on icy roads is much lower, as I've personally experienced while driving. The tires tend to slide around on ice, with reduced control due to severely decreased friction. The hard and slippery nature of ice makes it difficult for tires to grip the road firmly, and even a light tap on the brakes can make the car drift. I always remind beginners to drive slowly in snowy conditions, maintaining a safe distance to prevent rear-end collisions. When necessary, using the vehicle's lower gears to assist with braking can effectively enhance traction. Other methods include installing winter tires, which have deeper treads for better grip on ice. Additionally, checking the antifreeze in the car and ensuring the battery doesn't freeze, which could affect starting, are important. These simple steps can help everyone avoid danger.