关键词: 交通事件, 干预作用, 高速公路, 车流波, 模型

Abstract: This paper analyzed the interactive influence of trafic incidents and intervention measures on expressway traffic-flow on the base of hydrodynamk-trafic—flow wave theory,established traffice-flow wave speed model，traffic-flow wave position models and corresponding time models in the interactive influence of intervention shock-wave and concentration-wave，startup-wave and dissipation-wave result from trafic incidents and relieving diffluent intervention measures time model on the base of general model of speedin relation to traffic density．Thes models or critical parameters provided the theoretical basis for determining effectively schemes for solving traffic incidents and eliminating quickly traffic congestion or clog．

Key words: traffic incidents, intervention process, expressway, traffic-flow wave, model