| In recent years,with the prosperity and development of China’s economy,more and more vehicles are driving on the road.At the same time that people’s travel becomes convenient,it is accompanied by increasingly severe traffic safety issues.Based on the literature on safety measures at the entrance and exit of tunnels at home and abroad,this research takes pavement anti-sliding and reduced travel speed as two-way entry points,and expounds the current research status,research hotspots and In areas that can be developed,the use of decelerating colored anti-sliding pavements for the transitional sections of highway tunnel entrances and exits not only ensures road performance,but also adds warnings,anti-sliding,and speed reduction functions.Firstly,the paper systematically researches the traffic deceleration measures commonly used in the transitional section of the tunnel entrance and exit,and introduces two typical traffic deceleration measures(transverse deceleration markings on the roadway,colored anti-sliding thin layers)in detail,specifying the characteristics,structure,and the technical requirements of materials.By comparing the advantages and disadvantages of the two,this paper studied the mechanism of optical illusion deceleration.Secondly,based on the traffic safety at the entrance and exit of the tunnel,the traffic accidents are summarized and analyzed,then proportion of the form of,the influencing factors,and the characteristics of the traffic environment at the entrance and exit of the tunnel are obtained.With comprehensive consideration of structure and other aspects,the transition section and length of the tunnel entrance and exit are determined and concluded.The length of the tunnel entrance and exit transition section proposed in this study is: 100 m outside the tunnel at the tunnel entrance to 100 m inside the tunnel,and the exit 100 m inside the tunnel to 100 m outside the tunnel.Then,based on the characteristics of fast vehicle speed and high environmental change rate at the entrance and exit of the tunnel,through in-depth research on the current deceleration and anti-skid measures at the entrance and exit of the tunnel,a colored anti-skid pavement with deceleration is proposed.The perspective principle and flash are used respectively.The principle is used to calculate the theoretical distance value of the optical illusion deceleration anti-sliding band,and the design scheme of the variable-gap deceleration color anti-sliding band is obtained.Using 3D programming technology,a special 3D simulation simulation of the tunnel is built in the 3DMAX modeling and simulation software scenes.Subsequently,the color anti-sliding thin layer was subjected to polishing and loading tests based on the anti-sliding performance test of the colorful thin layer based on driving safety,and was compared with conventional ordinary asphalt pavement to draw the changes in friction coefficient and structural depth,respectively.The curve proves the superiority of the colored anti-sliding pavement in terms of pavement anti-sliding,and provides a theoretical basis for the layout of the colored anti-sliding thin layer in the transition section of the tunnel entrance and exit,and has certain theoretical reference value.Finally,through a virtual driving simulation test,the overall analysis of the deceleration pavement scheme at the entrance and exit of the tunnel is analyzed,and the eye movement signal changes of the driver of the vehicle are analyzed.Considering the different arrangements,the vehicle entering and the The impact on the driver ’s physiology when driving out of the tunnel is based on the pupil area change rate as an indicator,and the change curve is drawn and analyzed systematically to obtain the optimal layout of the road surface,and the test road is laid according to the best solution.The anti-slip property of the test pavement was actually tested to further verify the safety performance and effect of the deceleration colored anti-slip pavement. |
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