Modified centralized approach for preventing collision at traffic intersection

Traffic control at intersection is a system where conflict resolution between different lanes is required so that vehicles can access the intersection without hitting each other and also which prevents deadlocks. With the emergence of Vehicular Ad Hoc Networks (VANETs), Intelligent Transportation Systems (ITS) has seen emergence of new algorithms for autonomous cars such as collision detection, traffic maneuver & traffic control at intersection. Traffic light based algorithms use complex computational mechanism such as neural network and machine learning which make these algorithms complex to implement and use. The approach which we are going to discuss in this paper is to model the problem as the Vehicle Mutual Exclusion for Intersections (VMEI) which provides centralized solution to this problem. In VMEI approach number of vehicles that can access the intersection in one pass is not at all defined and it is left to the human intervention, we will call it as threshold. In this paper we will provide solution to threshold problem in centralized approach.