Brakes are a crucial safety device that are used to stop or slow down vehicles. There are three main types of braking systems: mechanical, air, and hydraulic. Mechanical brakes use force applied directly to rotating or moving parts, air brakes are used in heavy vehicles and use compressed air to apply brakes, and hydraulic brakes use pressurized fluid to apply brakes. Modern vehicles have advanced safety features that use the braking system like automatic emergency braking, pedestrian detection, lane keeping assist, blind spot warning, anti-lock braking systems, and adaptive cruise control which uses sensors to maintain a safe distance from the vehicle ahead. Braking systems are important for safety and accident avoidance.