交叉口一个进口方向的延误分析与计算是研究交叉口延误的基础。
The analysis and calculation of delay at one approach direction is the base of studying intersection delay.
信号交叉口延误是评价信号交叉口运行效率和服务水平的重要度量。
Vehicle delay at signalized intersections is the important measure to analyze the running efficiency and service level.
信号交叉口延误的测算，是城市道路交通运行分析和评价的核心之一。
To ascertain the traffic delay of signal intersection is one of the keys used in urban road traffic analysis and evaluation.
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