Development And Simulation Analysis Of Fluorescent Marking Coatings Based On Visual Characteristics

With the vigorous development of highways at all levels and urban roads,traffic markings,as an important guarantee of road traffic safety,also ushered in the spring of rapid development.Reflective traffic marking plays an important role in reducing the rate of traffic accidents and maintaining traffic safety.However,as far as the application of reflective road marking is concerned,the reflective performance of road traffic marking is greatly reduced due to rainwater immersing reflective glass beads in rainy night environment and the wear of reflective glass beads on tires.In addition,in order to better grasp the change of the road ahead,adjust the trajectory of the vehicle in time to ensure their own safety,drivers often choose to drive with the long-light on for a long time,while driving with the long-light on will cause serious interference to the driver's sight,thus causing traffic accidents.The energy storage fluorescent marking can automatically emit light without the illumination of the lamp,which overcomes the disadvantage that the ordinary marking must be illuminated by the lamp in order to reflect the light.It has a good recognizability at night(especially in the rainy and foggy weather at night).The driver can get more distant route information without turning on the high-light,and play a good road which the ordinary road marking can not provide.Face-oriented guidance effect,so as to ensure the driver's driving safety.This paper introduces the driver's eye movement form and visual characteristics,and analyses the synaesthesia caused by different colors and the influence on driving behavior,which provides a theoretical basis for the color selection of fluorescent materials.Pupil area change rate and fixation frequency(area)were selected as the evaluation index of driver's response to fluorescent marking.Optimum selection of energy storage fluorescent materials and binder base materials.The effects of different dosage of phosphor on the properties and luminosity of cementitious materials were studied,and the delamination phenomenon of fluorescent cementitious materials was solved.The microstructure of fluorescent cementitious materials was observed by polarizing microscope and electron microscope experiments.Finally,the fluorescent marking binder was tested for its non-sticky tire time,water and alkaline resistance,slip resistance and aging resistance.The scheme of fluorescent marking is designed,which is divided into straight line segment and curve segment(left and right turn).The model is modeled by UC-win/Road software and rendered by Adobe Photoshop(PS)to make simulation scene model.The SMI2.1 eyesight tracker was used to simulate 20 drivers,and the proportion of fixation points and the change rate of pupil area under different fluorescent marking schemes were analyzed.The scheme with good guidance effect for drivers was selected.Finally,five drivers are invited to carry out vehicle experiments on excellent schemes by laying energy storage fluorescent marking on actual sections,and the induction effect of fluorescent marking on drivers is comprehensively analyzed.The research results can provide certain theoretical reference for road management and design departments.