高速公路交通事件线性模型及车流波分析

高速公路由于交通事件的发生导致正常交通流发生改变,为了消散车流拥挤或阻塞,减少排队延误,应采取一定干预措施。运用流体力学车流波理论,分析了交通事件和干预措施综作用下对车流状态的影响,建立了关于车速与交通密度线性模型下的车流波波速模型,这些模型为有效确定事件处理方案,尽快消除拥挤或阻塞提供了理论依据。

The Analysis about Wave of Traffic Flow and Linear Model of Traffic Event at the Expressway

In order to promote dissipation of traffic flow congestion or clog and reduce vehicle queue delay under the influence of traffic incidents,some intervention measures should be adopted in the upper reaches of the origin of traffic incidents.Based on hydrodynamic traffic flow wave theory,it is analyzed the interactive influence of traffic incidents and intervention measures on expressway traffic flow,established traffic flow wave speed model,These models or critical parameters provide theoretical basis for effectively determining schemes to solve traffic incidents and quickly eliminating traffic congestion or clog.