How long are the brake marks at 60 km/h?

2 Answers
OCarlos
07/25/25 2:10pm
At a speed of 60 km/h, under normal circumstances, the braking distance can range from 9 meters to 15 meters depending on the vehicle model. The braking distance of every vehicle model on the market should comply with the following national regulations: 1. For vehicles with a total mass not exceeding 4.5 tons, the braking distance should not exceed 21 meters at a speed of 50 km/h. 2. For passenger vehicles with no more than nine seats, the braking distance should not exceed 19 meters at a speed of 50 km/h. 3. For other vehicles, the braking distance should not exceed 9 meters at a speed of 30 km/h. The main factors affecting braking performance include the following: 1. The performance of the brake calipers. Generally, the more pistons a brake caliper has, the better its braking performance. Additionally, the wear of brake pads and brake discs can significantly impact braking efficiency. Therefore, worn components of the braking system should be replaced regularly. 2. The grip performance of the tires. The grip performance of tires determines the friction between the tires and the road surface. Better grip results in higher friction and shorter braking distances. 3. The smoothness of the road surface. It is normal for braking to be ineffective on icy roads in winter, as the friction on ice is very low. Therefore, winter tires or snow chains should be used in northern regions during winter. 4. Brake temperature. If the brakes are continuously applied during long downhill descents, the temperature of the brake discs will rise sharply. This can lead to brake fade, which significantly reduces braking efficiency. Therefore, engine braking should be utilized more during long downhill descents.
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LylaFitz
08/11/25 9:01pm
I usually drive to and from work, often observing road conditions. At a speed of 60 km/h, the marks left by sudden braking are typically around 15 to 20 meters. Last time at the entrance of my neighborhood, I witnessed an accident where a car braking suddenly at this speed left black tire marks dragging nearly 18 meters on the ground. However, this depends on whether the road is dry or not. On rainy days, it would definitely be longer, and old cars with severely worn tires would slide a few meters more than new ones. The most important thing is to maintain a safe distance. Driving at 60 km/h in the city, don't follow too closely—always leave yourself enough reaction time.
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