Traffic proble is intertwined with the complexity of variousrestrictions. Instead of atual experiments, computer simulations become very useful in view of time,safety and economical costs. To obtain practical results from the simulations depends on its degree of the realistic level. However, it isvery difficult to simulate realistic traffic environment. We have developed the intelligent multi-agent based traffic simulatorwhich is called MATES(Multi-Agent based Traffic and Environment Simulator). In this presentation, we develop an automated pre-process of MATES to visualize road map circumstances and its modifications.