A novel dynamic traffic management system using on board diagnostics and Zigbee protocol

A novel system which seeks to dynamically control traffic lights and also provides scope for further vehicle-to-vehicle and vehicle-to-infrastructure communication based applications, is proposed. The project aims to develop and implement a working prototype of a system to ease traffic congestion by controlling traffic lights dynamically based on the traffic density, which, in turn, is determined by using the average speed data provided by the vehicles. Every vehicle will be equipped with a central unit which will acquire speed data (and compute the average speed) from the on board sensors of a car using an OBD device, process and deliver the data to the server by using the Zigbee protocol, with a Zigbee transmitter employed in every vehicle and the receivers mounted on light poles. These receivers then route the received traffic information to a localized server shared by several junctions or clusters. At the central server, the data from the traffic is mined as clusters and accordingly, the traffic signals in the junctions are controlled based on a dynamic algorithm, refining which, is an important part of the project. The system so designed is sure to find a place in future smart cities.