The invention relates to a mean-standard deviation reliability path optimization method based on an infinite dimension risk coefficient. The method comprises the steps that firstly, a traveler travel plan and a risk coefficient are acquired, and the risk coefficient indicates a ratio of a traveler reliability value to a time value; then, calculating average travel time and a travel time standard deviation based on the traveler travel plan, and determining an initial path set; then, determining an effective path set based on the initial path set by adopting a double-target label algorithm; and finally, determining a target support effective path based on the effective path set and the risk coefficient. That is, during travel route planning, the mean value-standard deviation model is adopted, the method has good interpretability and can accurately describe the influence caused by travel time fluctuation, continuously distributed risk coefficients are introduced, the heterogeneity risk preference of travelers is described in detail, the method can be more universal, and the method is more applicable to travel route planning. And the flexibility and accuracy of traffic flow distribution are improved.
本申请涉及一种基于无限维风险系数的均值‑标准差可靠性路径寻优方法。所述方法包括:首先,获取出行者旅行计划和风险系数,所述风险系数指出行者可靠性价值与时间价值的比值;之后,基于所述出行者旅行计划计算平均旅行时间和旅行时间标准差,确定初始路径集;之后,采用双目标标签算法基于所述初始路径集确定有效路径集;最后,基于所述有效路径集和风险系数确定目标支持有效路径。也就是说,在进行出行路径规划时,采用均值‑标准差模型,具有良好的可解释性,能够准确刻画旅行时间波动性带来的影响,同时引入连续分布的风险系数,细致地刻画出行者地异质性风险偏好,能够更加具有普适性,提高了交通流量分配的灵活性与准确性。
Mean-standard deviation reliability path optimization method based on infinite dimension risk coefficient
基于无限维风险系数的均值-标准差可靠性路径寻优方法
2024-10-15
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / 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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