
Here are the factors that affect braking distance: 1. Suspension system: During emergency braking, the vehicle's center of gravity shifts forward, compressing the front suspension. If the front suspension lacks sufficient support, it can cause excessive forward shift of the center of gravity, reducing rear wheel traction and weakening the braking effect of the rear wheels, thereby increasing braking distance. 2. Vehicle weight: The greater the weight of the car, the greater the inertia, making it harder to stop, so vehicle weight can also have a direct impact on braking distance. 3. Tires: The better the tire traction, the more braking force can be obtained during braking, which can shorten the braking distance. 4. Braking force: Vehicle braking force is divided into two types: brake braking force and ground braking force. 5. Electronic assistance systems: (1) ABS: On dry roads, when emergency braking causes the tires to approach lock-up, ABS can achieve a shorter braking distance than lock-up. (2) Brake assist system: It can determine the force and speed of braking based on sensor data. 6. Brake system temperature: For passenger cars, high temperature is a significant factor affecting braking force. Excessive temperature can cause a sharp decline in braking force. 7. Road conditions: Braking ultimately relies on friction between the wheels and the ground, and road conditions determine the level of friction between the ground and the wheels.

I've been driving for over ten years, and my deepest realization is that the key factors affecting braking distance are speed and road conditions. If the speed increases too quickly, for example, from 60 km/h to 100 km/h, the braking distance will double, which is particularly dangerous on highways. Additionally, if the road is wet or has standing water, the tire grip decreases, making the car more prone to skidding and increasing the stopping distance. The condition of the tires is also crucial—don't try to save money by using tires with worn-out treads; it's best to check them before the rainy season. The weight of the vehicle shouldn't be overlooked either; carrying heavy loads makes braking more strenuous due to greater inertia. Coupled with a slow reaction time from the driver, even a few seconds of hesitation can significantly lengthen the stopping distance. In my daily driving, I make it a habit to slow down in advance to avoid sudden braking, maintain a safe following distance, and regularly replace tires to effectively reduce braking distance.

As someone who frequently works on cars, I believe the principle of braking distance originates from physics mechanics. The higher the speed, the greater the kinetic energy, and the more energy needs to be dissipated during braking. The friction coefficient of tires and the clamping force of brake pads directly affect braking efficiency. Worn tires or brake discs can severely hinder performance. Road conditions like icy or oily surfaces reduce the friction coefficient, naturally increasing braking distance. Vehicle load increases mass, requiring more braking force during sudden stops, which explains why large trucks are harder to stop. Weather factors such as heavy rain reduce visibility and extend reaction time, collectively increasing the overall stopping distance. I recommend checking the brake system every six months to ensure sufficient hydraulic pressure and proper ABS function. These preventive measures can significantly improve driving safety.

I just got my driver's license, and my instructor always reminds me that the main factors affecting braking distance are excessive speed and bad weather. For example, if the speed exceeds 50 kilometers per hour, the car will skid much farther when braking, which is quite scary. On rainy days, the road is slippery, and tires tend to lose traction, significantly increasing the braking distance. If the tires are severely worn, their grip weakens, especially noticeable in rainy conditions. I think beginners should pay attention to controlling their speed, avoid driving too fast, and maintain a greater following distance in the rain.


