Back in the day, the parking brake was known as the emergency brake. I grew up thinking that if you really needed to stop, you cranked that handle up to get the car stopped. After driving for a few years, I realized that locking up the wheels is the best way to lose control of the car, which is why we have anti-lock brakes. The challenge in preventing accidents with other cars and pedestrians is not only to get the brakes activated more quickly, but also to get the brakes themselves to function better.
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https://www.slashgear.com/autoliv-emergency-brake-exerts-15000-newtons-of-force-to-stop-your-car-24390281/