Paper Title
The Solving Traffic Congestion by Simulation of Urban Traffic Signals

Abstract
This paper is aimed to design solutions for traffic problem in the area in front of The Mall Nakhon-Ratchasima department store by using Flexsimİ program in order to create a simulation of traffic signal system and use it for experimenting timing system of two traffic lights located in the area before and after reaching The Mall department store. From the result of the experiment, it has been show that we can use simulation method to create traffic signal model using Flexsimİ program and we can use that model to solving the traffic congestion by recommended the appropriate timing between the red light of each traffic light in front of The Mall department store. Index terms- Simulation, Flexsimİ, Traffic Congestion, Traffic Management, Traffic Signals