Does driving resistance increase or decrease in rainy weather?
2 Answers
Driving resistance decreases in rainy weather. The main factors affecting safe driving on rainy days include the following aspects: 1. Impaired visibility. 2. Slippery road surfaces. 3. Reduced traction. 4. Decreased friction. Here are some additional details: 1. If a heavy rain has just stopped and the road has been dried by the sun, this provides the best friction performance. 2. During rainy weather, impaired visibility and slippery road surfaces cause the wheel traction to decrease sharply as speed increases, making the wheels prone to skidding. At high speeds, vehicles are also susceptible to hydroplaning, so it is essential to control the speed appropriately.
I remember when I was young and just started driving, every time it rained, I felt the car ran with more difficulty, and the fuel consumption was noticeably higher. The driving resistance definitely increases on rainy days. The water hitting the ground and tires is like adding an extra layer of friction, requiring more power to overcome sliding and rolling resistance when the tires rotate. The air also becomes damp and cold, increasing air resistance as the car moves forward, so the engine has to work harder to maintain speed. From my experience, it's best to avoid high-speed driving in the rain and choose tires with good drainage performance to save some fuel. Rainy roads are slippery with more risks, poor visibility, and longer braking distances. The increased resistance exacerbates safety hazards, so it's best to slow down, maintain a safe following distance, and prioritize safety.
