The invention discloses a real-time dynamic allocation method for intersection traffic signal duration, and the method comprises the following steps: acquiring historical data P of the same intersection by taking T as a sampling interval; performing K-means clustering on the collected historical data P to obtain K data clusters, and calculating the maximum average passing time required by the maximum queuing length of the i-th sampling period in one day of the K data clusters; collecting and predicting the environmental variable of the day and the real data of the i-1 period, and predicting the maximum passing time of the i-th period according to the data cluster corresponding to the environmental variable; dynamically adjusting the traffic signal duration of the intersection of the i-th period according to the predicted maximum passing time of the i-th period; collecting the real data of the intersection in the i-th period, correcting the prediction parameters, and predicting the maximum passing time of the intersection at the (i + 1)-th moment, so that the prediction precision of the road condition of the intersection can be improved, and the congestion condition of the road is relieved.
本发明公开了一种交叉路口交通信号时长的实时动态调配方法,包括以下步骤:以T为采样间隔,采集同一交叉路口的历史数据P;将采集的历史数据P进行K均值聚类,得到K个数据簇,计算K个数据簇一天中第i个采样周期最大排队长度所需的最大平均通行时间;采集预测当天的环境变量及第i‑1个周期的真实数据,根据环境变量对应到的数据簇中,并对第i个周期最大通行时间进行预测;根据预测的第i个周期的最大通行时间,对第i个周期交叉路口的交通信号时长进行动态调节;采集第i个周期交叉路口的真实数据,并对预测参数进行修正,并对i+1时刻交叉路口的最大通行时间进行预测,本发明能够提高交叉路口路况的预测精度,缓解道路的拥堵情况。
Real-time dynamic allocation method and system for intersection traffic signal duration
一种交叉路口交通信号时长的实时动态调配方法及系统
2021-03-26
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES |
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