In all the usual perception, most drivers will think the front wheel blowout is more dangerous, but in fact this perception is not entirely correct. To be sure, a blown tire in any case is very dangerous.
But relatively speaking, at low speed front tire blowout is more dangerous, and the consequences of driving under the blown rear tire at high speed is more serious. Why?
When the tire blows out, usually the owner’s attention is focused on the direction wheel, or the front wheel, because the tire first yaws when the blowout occurs. But the driver is unable to timely correct the direction of yaw at any speed when puncture occurs. The driver’s reaction time to detect yaw probably will lag 0.5 seconds after a puncture occur, no matter at high-speed or low-speed.
Danger is most likely to happen at the state of high speed. The vehicle speed on the highway will generally reach 100-120 km / h. If the front tire blows at this time, the vehicle will yaw to left or right. Then if the driver’s operating skills are proficient enough, hold the steering wheel, brakes and slowly park the vehicle to the side of the road. There will be no serious consequences.
However, if the rear tire blows, the situation will be much more complicated. For example, if the right rear tire blows, the rolling resistance on the blown tire will increase by 30 times. The car is subject to a clockwise torque. The torque cause the car to yaw to the right while at the same time generating a lateral force pointing to the inside of the blowout tire, making the car slip to the inside of the blown rear tire.
Meanwhile, when a blowout occurs, the wheel crushing the tire generates a lateral force directing to the outside of the tire. The wheel will generate a slip trend toward the outside of the blown tire. Therefore, if the rear tire blows, the end of the car will drift. But this is related to the road conditions, and other factors related to cars. According to the accident data from the past, we can see the rear tire blowout will cause slip to the outside and to the inside. Although the slipping is reflected on the yaw, the driver can not suppress it by correcting the direction.
Make a vivid metaphor, it’s like a person foot slip while attempting to adjust the direction of the body to avoid fallin. Regardless of what direction your body is adjusted to, it can not avoid falling.
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