In this project, the aim is to develop an IOT based traffic light control for smooth passage emergency vehicle and automatic accident detection system. Project is divided into two parts. First is accident detection module, which is fitted in vehicles, through which we can detect accident and notify the operator about the location of accident with the help of text message. Accident detection module also stops the engine, when accident is detected. Second part is IOT based Traffic light control for emergency vehicles; it provides smooth passage for emergency vehicle by forcing green signal in the desired lane. Commands are given through a website, from which we can control traffic lights. This system can reduce the response time of emergency services and also save the time delay in traffic signal which can reduce the fatality rate in road accidents.

Keywords : Arduino Uno, GPS module, GSM module, IOT, Accelerometer, Accident detection.