As a general rule, what is the main function of the parking brake or handbrake?

Question

DentroTest · Accepted Answer

The parking brake (commonly known as the handbrake) is designed to keep the vehicle mechanically immobilized once it has stopped, ensuring it does not roll away, especially on slopes or when parked. It is not designed to stop a moving vehicle (such as on downhill slopes or urban roads); for that function, the service brake (brake pedal) and engine braking are used.

As a general rule, what is the main function of the parking brake or handbrake?

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