The number of vehicles registered to traffic increases rapidly every year in Turkey. According to Statistics of The Number of Road Motor Vehicles published by Turkish Statistical Institute, the number of vehicles registered increased by 72% during the period of last 10 years in Turkey. In the same period, the increase in the number of vehicles registered was 103% in Trabzon, the city in Turkey. This increase causes serious traffic congestion in the city center of Trabzon located in a restricted geographical area, and has a road problem. It is quite costly to assess solutions in the city where construction activities are making life difficult while applying various methods to solve the traffic intensity. Simulation models should be considered in such situations due to their non-cost. In this study, the traffic of the Maçka intersection located at one of the most central and active points of the city was analyzed. The data collected from intersection was modeled by Arena Simulation software according to traffic flow. Various scenarios were produced according to traffic light periods, and trials were carried out to improve current traffic flow by evaluating the outputs obtained by modeling of these scenarios. Two different time periods that have heavy traffic, morning and evening, were examined. The scenario in which the best outputs were obtained was presented as a solution. According to results of this scenario, a 13% improvement in average waiting time can be achieved.