The Outline for Developing China's Transportation Strength takes"the significant improvement in the development level of intelligent,safe,green and shared transportation"as one of the clear development goals.With the development of social economy,the traffic flow is increasing day by day,and the risk of tunnel operation is increasing.In the event of an emergency in the tunnel,it is necessary to restrict the vehicle from continuing to enter the tunnel in time to reduce the secondary accident.The application of this technology can effectively reduce the vehicle that continues to enter the tunnel after the accident occurs,avoid the secondary traffic accident in the tunnel,and facilitate the evacuation and rescue of personnel at the accident site,reduce the degree of accident hazard,and realize the overall improvement of the intelligent safety guarantee of highway tunnels.
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