An anti-lock braking system (ABS) is a safety feature in vehicles designed to prevent the wheels from locking up during hard braking. When a driver applies the brakes suddenly, ABS automatically modulates brake pressure to maintain traction, allowing the driver to steer while braking. This helps reduce the risk of skidding and loss of control. ABS consists of several components, including wheel speed sensors, a hydraulic control unit, and an electronic control unit. These parts work together to monitor wheel speed and adjust braking force as needed. By improving vehicle stability, ABS enhances overall safety on the road, especially in slippery conditions.