Research On The Roadside Dangerous Zone Identification And Security Technologies Of Mountainous Two-lane Roads

Due to the particularity of linear complexity and driving conditions,the mountain way accident rate is higher,the loss is more serious,and the accident rate is far higher in the curve section,carries out mountain curve road safety research s is significant.Papers analyzes the relation between vehicle speed,lateral acceleration,lateral offset variation and the road alignment,study the driving characteristic at straight slow,slow circle,the midpoint g,circle slow,gentle point,and select the lateral acceleration as the safety evaluation index,based on BP neural network,establish the lateral acceleration prediction model,put forward safety warning and prevention measures in curve section,study on the fence length,position and form,propose the traffic control technology in overtaking section,confirm the safety facilities type,spacing and setup requirements,establish the two-lane mountain road roadside protective sstrategies in the curve section.On the ground of identification of the hazardous area,proposed corresponding security technologies,reduce the rate of roadside accidents.For mountain highway design,provides safety evaluation basis,and puts forward improvement plan.