What are the reasons for ineffective braking on rainy days?

[AlanLee]

Here are the specific reasons for ineffective braking on rainy days: Vehicle overload with high inertia: Overloading the vehicle results in excessive inertia, making it difficult to brake effectively. Mixtures on the road surface: Presence of water, sand, or snow on the road causes slipping. If the speed is too high and the braking performance is average, the deceleration effect is not obvious, leading to ineffective braking. Brake pedal not fully depressed: The foot brake is not pressed all the way down, or the brake pads are too thin, resulting in ineffective braking on rainy days, necessitating immediate replacement of the brake pads. Worn-out tires: The tire treads are completely worn out, reducing friction and losing grip, requiring immediate tire replacement.

[JulianLynn]

I often notice while driving that the brakes don't feel as powerful on rainy days. That time right after the rain, I had to brake hard at an intersection and the car slid quite a distance before stopping—it was really scary. The main reason is that rainwater makes the road surface particularly slippery, greatly reducing the grip between the tires and the road. The water film effect decreases the friction coefficient. Additionally, if the tire tread is severely worn, the drainage performance is poor, making it easier to skid or lose control. Driving too fast is also a problem; even a slight delay in reaction time can lead to an accident. It's advisable to check tire wear before driving in the rain, maintain a safe distance, avoid rushing, and develop the habit of driving slowly to prevent many accidents.

[DaisyAnn]

I've studied some basic principles of cars. The main reason brakes don't work well in rainy weather is that the friction system is affected by rainwater. The water layer reduces tire grip, and the lower road friction coefficient naturally increases braking distance. If water gets into the brake pads, surface friction will also weaken, and humid hot weather may accelerate brake system aging. Additionally, cars without ABS are prone to locking up and skidding in rainy conditions, so it's important to regularly check brake fluid quality and component wear. Developing habits like driving slower and braking earlier in rainy weather is crucial. Proper vehicle maintenance ensures safer driving.

[Camille]

I've been driving for decades, and most rainy-day accidents happen because people are in too much of a hurry. Wet roads reduce tire traction and braking effectiveness, making sudden stops even more dangerous. My advice is to maintain a low speed, increase the distance from the car in front, and anticipate road conditions by gently applying the brakes in advance. Don't rely too much on technology—good driving habits are what really matter.