The document describes a system to manage traffic near U-turns to prevent accidents. It uses sensors like infrared sensors and a laser placed near U-turns to detect approaching vehicles. When a vehicle takes a U-turn, the system turns the traffic light to red in the opposite lane and activates a laser to stop oncoming traffic. It also includes a buzzer and SMS alerts. The system is designed using an Arduino board connected to these sensors to process signals in real-time and control the traffic signals and alerts. It aims to provide a low-cost solution to improve safety at busy intersections and prevent collisions during U-turns.