Driving simulators are frequently used in training, developments of cars, and so on. But, almost all of them can reproduce only predefined situations. In a field of traffic engineering, a variety of traffic simulators have been developed and used in many cases. In this study, we attempt to combine these two kinds of simulators. We can simulate many kinds of interaction of a car that user controls and other cars or pedestrians that move and act autonomously according of their own rules and preference. In this paper, we develop an interactive interface for a multi agent based traffic and environmental simulator MATES as traffic simulator. We examine this system's real-time performance.