The result indicates that the proposed method can greatly improve the traffic condition compared with the traditional fixed - time control method . 4 . based on the signal control of the isolated intersection , a dynamic optimization and control method for urban artery is presented , whose objective is to maximize the throughput of artery system during the whole control period 在單交叉路口信號動態優化控制研究的基礎上,針對飽和交通干線的信號控制問題,提出了以控制周期內飽和交通干線系統的車輛通行量最大為目標的交通信號動態優化控制方法。