山区公路交通流随机干扰基本模型研究

山区公路因而受线形、纵坡和路面状况等因素的影响,其事故率高于其他公路。随机干扰因素作为山区公路事故发生的重要因素,一直是山区公路使用者的困扰,也是交通管理部门进行交通安全管理的难点。常规交通流模型大多不太适用于山区公路,为了研究适用于山区公路交通安全管理的交通流随机干扰模型,分析研究了山区公路交通流随机干扰交通特性,利用交通流宏观分析的欧拉方程方法以及拉格朗日方程微观分析方法建立了山区公路交通流随机干扰基本模型。

Basic Model of Traffic Flow with Discrete Disturber for Mountain Road

Mountain roads,as a part of the road network,are playing a more and more important role in transportation system in China.However,the accident rate of mountain roads is substantially higher than those of other types of roads because of particular alignment,longitudinal slope and road conditions.Discrete disturber has been perplexing the users and the management departments as an important cause of mountain road accidents.Conventional traffic flow models are not suitable for mountain roads.Therefore,the traffic characteristics of mountain road traffic flow with discrete disturber is analyzed in this paper in order to propose a traffic flow model suitable for mountain roads.Then,Euler equation and Lagrange equation are used to build the basic mountain road traffic flow model influenced by discrete disturber.The research on traffic flow theory and safety of mountain road should be enriched,and the safety management of mountain road in China would be improved.