Survey Paper on Traffic Flow Control using Cellular Automata

As freeway traffic is increasing in exponential rate day by day need an correct and practical methods to model and control the traffic flow.A cellular Automata (CA) is a system of finite automata that provide a discrete computational model to under the complex behaviour system. This article provides a survey on how researchers can use Cellular Automata to control the traffic on highway including walkers with the cellular automata rules. Many researchers have provided different-different models on different traffic flow (Microscopic, Macroscopic, Mesoscopic, CATS ...) to control traffic. CATS(cellular automata model for traffic flow simulation) capable to handle various difficult situations where it is related to discretized traffic into homogeneous cells of equal length, and time is discretized into time steps of equal duration and permit the users to identify locations within the road topology .