| In order to give effect to the people-oriented transportation concept,in recent years,many people in China have implemented the car-making policy,but the traffic accident rate at the crosswalk is still high.In order to set up a reasonable and effective concession environment and ensure the traffic safety of pedestrians at the zebra crossing,it is necessary in order to conduct research on the pedestrian crossing sign of the zebra crossing auxiliary facilities.Firstly,from the perspective of road environment,traffic composition and perception and visual characteristics of road participants,this paper analyzes the influencing factors of pedestrian crossing warning sign setting,and determines the specific content of pedestrian visual road marking visual simulation evaluation system based on real vehicle experiment..Then,size of the crosswalk notice mark is revised from the relationship between the visual effect and the vehicle speed.In the study of the pre-distance,the driver's driving model and the cognitive model of the crosswalk warning sign are constructed,and the mathematical logic derivation formula is brought together to determine the setting range of the pre-distance of the crosswalk warning sign.Combined with the provision of other road markings,the scope of research on the spacing of pedestrian crossing notices is proposed.Finally,based on SMI portable eye tracker and UC-win/Road simulation experiment platform,the effect of setting the effect size,prepositive distance and longitudinal spacing of the crosswalk warning sign was studied.The research found that the design speed is 40km/h,the crosswalk warning sign When the size is 3*1.5*0.2m,the best pre-distance of the crosswalk warning sign is 40 m,the best pedestrian crossing notice mark spacing is 20m;the design speed is 80km/h,and the crosswalk warning sign size is 6*2*0.2m.The best pre-distance of the crosswalk warning sign is 60 m,and the best crosswalk warning sign spacing is 25 m. |
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