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交通信号协调控制方案过渡优化算法

, PP. 97-103

Keywords: 信号控制,过渡算法,极小极大原理,加权调节,相位差,协调控制

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Abstract:

建立了信号控制方案过渡前后的交叉口相位差调整量关系方程组,针对各交叉口过渡信号周期的允许取值范围,利用交叉口相位差调整比例的极小极大原理,提出了单周期对称调节过渡算法与N周期加权调节过渡算法。分析结果表明单周期对称调节过渡算法将在满足一次过渡条件下,实现交叉口相位差实际调整量最大值的最小化;N周期加权调节过渡算法则可以综合考虑各交叉口过渡信号周期的不同允许取值范围,根据交叉口相位差最大调整比例的最小化要求,通过N个过渡信号周期最终实现协调控制方案的快速平滑过渡。与其他过渡算法相比,N周期加权调节过渡算法实现了对于控制区域内交叉口相位差调整量的整体优化,使过渡方案能够更好地满足不同信号交叉口的控制需求,具有更广的适用范围与实用性。

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