IoT Based Smart Traffic System Using MQTT Protocol: Node-Red Framework

This paper suggests a novel idea to implement a smart traffic management system in which real-time data are processed and stored in the database. A network of ultrasonic sensors are used to track traffic congestion at intersections on the road all day long. The information on traffic density is used to determine the set time of a signal, unlike the conventional way of the predefined set time. Internet of Things (IoT) technique is used to send the data from sensors to node-red through Message Queuing Telemetry Transport (MQTT) protocol where primary decision making is done. This system can be used in four-way or two-way junctions with few code amendments. A significant amount of waiting time is saved through the model.