The growth of road users that is not accompanied by additional road capacity will certainly cause congestion. To overcome this, it is necessary to implement a modern transportation system, which no longer refers to the old and expensive traditional system. This research uses Ideal Flow Network and Traffic Flow Theory modeling to analyze the level of road congestion. The purpose of this research is to provide a solution to the congestion of the Raya Nginden – Panjang Jiwo – Nginden Intan Raya – Nginden Baru – Nginden Semolo road network to improve the efficiency and effectiveness of the road. The research method used is literature study and data analysis. The results of this study indicate that the use of the Ideal Flow Network Concept can facilitate vehicle flow and minimize congestion on the road network studied. The result of this experiment is that the scenario of changing the direction of traffic flow on Nginden Intan Raya Bridge can improve the performance of the research road network, the average speed increases by 0.086%, the travel time on the road section decreases by 0.421%, and the vehicle delay time decreases by 1.713%.