It is a system that manages the road traffic in a city automatically by combination of algorithms, equipment’s and communication networks without involvement of human personnel in decision making according to various kinds of situations of road traffic that arise in a city. The approach of this paper is traffic signaling at a crossing point by measuring traffic density in each road. Also, vehicles that will violate signals at crossing points can be tracked by this system. Sometimes, situations like road congestion and exceed of limit of maximum traffic capacity of a road can arise and this system can also take decisions automatically accordingly. Vehicles can never cross the speed limit under this system. The paper is written considering left-hand traffic rule. Keywords: traffic density, operations, control