Application effect of self-luminous road markings at entrance of cross-river and cross-sea tunnel
Aiming at the problem of frequent accidents at the entrance of cross-river and cross-sea tunnel,an improvement strategy was proposed based on self-luminous road markings.The visual recognition performance of self-luminous road markings in different light environments was studied by real vehicle experiments,so as to verify the feasibility of replacing the ordinary road markings with self-luminous road markings,and to study the difference caused by different brightness and color.A three-dimensional scene of the entrance section of the cross-river and cross-sea tunnel was constructed to conduct driving simulation experiments,and the driving behavior and subjective feelings of drivers in different scenes were analyzed,so as to verify the application effect of setting the self-luminous road markings at the entrance section of the cross-river and cross-sea tunnel.The results show that when the ambient illuminance is greater than 50 000 lx,compared with 280 and 2 500 cd/m2,the self-luminous road markings with a brightness of 1 500 cd/m2 have the best visual recognition performance,and its average visual recognition distance is close to that of ordinary road markings,up to 89 m.Compared to yellow and white,orange self-luminous road markings are better in terms of visibility and comfort.When the ambient illuminance is less than 100 lx,the self-luminous road markings of different colors and brightness can increase the visual recognition distance by more than 20 m compared with ordinary road markings.In addition,brightness has a significant effect on comfort,brightness of 280 cd/m2 performs best,color has no significant effect on comfort.Compared with the ordinary road markings scene,the lane keeping performance of the vehicle in the self-luminous road markings scene is better,and the driving speed is reduced by 5 to 20 km/h.Through the advance warning of self-luminous road markings,the driver's braking frequency,maximum braking force and continuous distance are reduced,and the driver's subjective feeling of tension and operation difficulty are reduced.The application of self-luminous road markings has a good effect on the safety improvement at the entrance of the cross-river and cross-sea tunnel.The results of this study can provide reference for luminance setting and application design of self-luminous road markings or similar ground luminescence facilities.2 tabs,15 figs,27 refs.
traffic engineeringtraffic safetydriving simulatorself-luminous road markingvisi-ble performancecross-river and cross-sea tunnel
NETL
NSTL
万方数据
