Research On The Color Of Expresswaytunnelentranceand Exit Based On Visualevaluation

In recent years,the application of colored pavement in the construction of expressway tunnel is rising rapidly.It is generally believed that colored pavement can improve road traffic safety and reduce accidents.However,most of the current researches focus on the analysis and research of the material composition and structural properties of the colored road surface.There is still a lack of reliable research results on the driving safety warning,the role of reducing safety hazards and the quantitative evaluation of the colored road surface.In this paper,aiming at the application of color pavement in the construction process of taihang mountain expressway tunnel project,the problem of choosing more reasonable color design scheme is solved through the experimental study of visual evaluation,so as to improve the traffic safety.First of all,on the basis of literature research,the LAB value of road interview blocks with different colors was measured with a color luminometer and the corresponding RGB value was calculated.choose red and yellow colors as colored pavement color,choose the original film of road pavement as control group experiment,Three schemes are designed according to the perspective principle and the flash rate principle.Secondly,according to the actual terrain,engineering plan,topographic map and specification requirements,the external environment and internal space model of the tunnel were established,and the external sunshine scene and internal lighting scene of the tunnel were established.And make virtual driving video resources.Thirdly,the experiment method of virtual reality is adopted to conduct simulated driving experiment on the subjects and subjective questionnaire survey on the subjects.Through the analysis of objective test results and subjective evaluation data,the change rules of visual features and subjective feelings of the subjects were analyzed and obtained,so as to determine the quantitative evaluation conclusion of the impact of different schemes and different colors of road on the visual effects of the subjects.Finally,through the analysis of the results to find out the most conducive to the driver’s visual characteristics of the tunnel entrance color road paving mode and paving color,so as to determine the road pavement pattern and color scheme.The results show that the colored pavement at the entrance and exit of the tunnel is helpful to improve the driver’s attention and safety.The rectangular pattern is better than the armband pattern in the pavement pattern,and the yellow road is better than the red road.