Study On The Spacing Setting Of Fluorocarbon Reflective Paint For Highway Wave Guardrail

For a long time,safe driving is an important frontier technology in the field of traffic safety.With the rapid development of expressways,the driving safety of expressways has been paid more and more attention by the people.Existing road reflective facilities play different roles in driver's sight guidance and visual warning.At the same time,there are also many shortcomings,such as poor visual effect,high maintenance cost and difficulty in maintenance management.At night,the driver's visibility is reduced,and the demand for reflective lighting is enhanced,however,the existing reflective facilities are less effective in inducing visual voids.Therefore,Suiguang and Suixi Expressway used a form of fluorocarbon reflective paint applied to the wave guardrail to further enhance the safety of night driving.This paper studies the spacing of fluorocarbon reflective paints for wave guardrails.This paper analyzes the definition and characteristics of fluorocarbon reflective varnishes and compares them with existing reflective safety facilities.Based on the reflection principle of fluorocarbon reflective paint,this paper analyzes the influence of white fluorocarbon reflective paint on safe driving at night from the perspective of driver's physiological and psychological and visual brightness perception.The results show that the application of intermittent fluorocarbon reflective paint on the wave guardrail is beneficial to improve the driver's night driving safety factor and enhance the inductiveness and warning of the road system at night.The application of fluorocarbon reflective varnish can complement and strengthen nighttime road safety facilities.To lay the theoretical foundation for the following research on the spacing of fluorocarbon reflective paints.Then,based on the visual characteristics of the driver,this paper analyzes the factors such as visual acuity and visual field,night vision distance and other factors.Combined with the warning and linear enhancement of fluorocarbon reflective varnish,this paper determines the principle and method of setting the fluorocarbon reflective paint spacing on the straight section of the highway and the flat curve section.This satisfies the visual alertness and comfort of the driver's straight line segment,and provides good linear guidance for drivers driving on curved sections.Combined with the fluorocarbon reflection effect of the wave guardrail,the night driving environment of the highway driver is established based on 3D-max,and the accuracy of the simulation scene is verified.Finally,the spacing setting scheme is studied separately for different road alignments.In the straight section of the expressway,this paper establishes a straight line segment setting distance model based on visual inertia and flicker perception.And the reflective comfort experiment was designed.The relationship between visual comfort and alertness and different spacing was studied by subjective evaluation method and heart rate detection.Finally,the distance setting scheme of fluorocarbon reflective paint for straight line section of expressway was obtained.In the flat curve section of the expressway,the reflection-induced sensing experiment was designed based on the curvature perception experiment.The number of reflective stripes and the curvature perception accuracy were statistically analyzed.Finally,considering the factors of the driver's field of view and the horizontal angle of the headlights of the car and the characteristics of the left and right turn curves of the highway,a reflectioninduced spacing model based on curvature perception is established.Finally,the model setting of highway fluorocarbon reflective paint curve section is obtained through model analysis.