高速公路养护作业交通冲突模型

Model of traffic conflict of expressway maintenance

借助流体流量连续理论,分析了高速交通流与养护施工作业设备的关联特性,以及养护施工机械设备机群低速流与高速公路高速交通流的冲突特征.基于减少高速流和低速流在二维空间上的交汇时间,实现高速公路路面养护与交通流关联最佳控制的要求,应用管道流变特性参数解释高速公路养护作业产生的交通冲突特征,建立了控制施工作业设备与高速交通流的数学模型.通过该模型可以指导高速公路维修施工组织和管理,预测交通冲突.

According to the hydrodynamic theory, the interconnected characteristics of the highway traffic flow to the low-speed flow of pavement maintenance equipments are studied, and the traffic conflict characteristics of low-speed flow of pavement maintenance equipments to the high-speed traffic flow are analyzed. In order to reduce the communication time between the high-speed and low-speed flows in 2D space, and to get the optimum interconnecting control of traffic flow to the highway pavement maintenance, the fluid characteristic parameters are utilized to appraise traffic conflict trend. The theoretic model between low-speed mechanical construction equipments flow and high-speed traffic flow is established, which can guide the organization and management of expressway construction, and predict the traffic conflict.