The invention provides a highway network traffic system toughness improving method and system under major emergencies, and belongs to the technical field of highway traffic operation management. The actual traffic capacity of the most downstream section of a traffic event influence area and the predicted value of the number of vehicles capable of passing through the speed limiting position under the condition of no speed limiting are calculated; calculating the actual traffic capacity of the speed limiting position; judging whether the predicted value of the number of the passing vehicles at the speed limiting position is smaller than the actual traffic capacity of the speed limiting position or not under the condition of no speed limiting; calculating the number of vehicles detained in the traffic event influence area and the queuing length and the congestion level of the traffic event influence area; judging whether the congestion level of the traffic event influence area meets a control requirement or not; and if yes, determining a speed limit value and a speed limit position in the traffic system toughness improvement scheme. According to the method, the defects that a calculation method for the queuing length and the congestion level of a traffic incident influence area under the condition that a given speed limit value and a given speed limit position are lacked and a determination method for the speed limit position under the condition that the given speed limit value is lacked are overcome.
本发明提供一种重大突发事件下公路网交通系统韧性提升方法及系统,属于公路交通运营管理技术领域,计算交通事件影响区域最下游断面实际通行能力、限速位置在没有限速情况下的可通过车辆数预测值,计算限速位置的实际通行能力;判断限速位置在没有限速情况下的可通过车辆数预测值是否小于限速位置的实际通行能力;计算交通事件影响区域滞留车辆数以及交通事件影响区域排队长度和拥堵等级;判断交通事件影响区域拥堵等级是否满足管控要求;如果是,则确定交通系统韧性提升方案中的限速值和限速位置。本发明弥补了缺少给定限速值和限速位置情况下交通事件影响区域的排队长度和拥堵等级计算方法,以及缺少给定限速值情况下限速位置确定方法的不足。
Highway network traffic system toughness improving method and system under major emergencies
重大突发事件下公路网交通系统韧性提升方法及系统
2023-08-29
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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