Research On Traffic Control Theories Of Expressway Accident Emergency Rescue In Meteorological Disasters

As the Economic brace of the country, which makes great contribution to state economy, the expressway has economic characteristics such as high capacity, speediness, safety and comfort.On the other hand, high capacity and speediness led to terrible devastation of the vehicles and people, as long as there are meteorological disasters happened accidentally. What's worse, the meteorological disasters on expressway easily make chain effect, further more, they usually led to devastation both of people and economy. Traffic safety problems on expressway prevent expressway from the development of benefit. As a result, research on traffic accident foresee and traffic accident emergency rescue in meteorological disasters becomes more important.Most of meteorological disasters is inevitable and unfateful, which makes no use on accident foresee in traffic control, in this case, it is better to relief the terrible consequence of traffic accident by accident emergency rescue.This article construes the perniciousness of meteorological disasters working on expressway, by clarifying traffic accident emergency rescue system, then presents how important the traffic control in traffic accident emergency rescue is.As the country has a vast territory, and complex geological conditions, a steady flow of natural calamities happen accidentally, the article construes the compromises of accidental meteorological disasters on expressway. Combine with traffic accident emergency rescue theories in world, and instructions to the system, it expounds the importance of traffic control in accident emergency rescue system caused by accidental natural calamities on expressway.This article analysis the traffic feature of traffic flow elements, contacting with traffic feature in meteorological disasters, establishes traffic model based on meteorological disasters, provides theoretical basis for research on accident emergency rescue system in postamble. On that basis, it establishes traffic accident emergency rescue system in meteorological disasters by research on current accident emergency rescue systems, it analysis structure function of subsystems and specific workflow of system, in which it designs emergency rescue unified action system.Researching both on current traffic control and traffic accident emergency rescue system, it explores traffic control in emergency state. In the article, it construes ramp control and freeway mainline control etc, to provide consultative opinion for traffic control in varies meteorological disasters.In the end, it sums up the research in the article, and looks forward the research area in future.