Study on deceleration effect of visual speed reduction markings on the road
Zhang Kai-ra · Journal of Safety Science and Technology · 2014
To solve the unreasonable phenomenon of current marking setting,the classification,setting and the deceleration effect of existing speed reduction markings were summarized.Combining with optical illusion principle,the simulation experimental markings were designed and imported into the simulation scene,then the deceleration effect could be judged through the behavior of drivers on driving simulation platform.The results showed that:the four kinds of markings all have a high degree of identification,which can be clearly identified beyond 200 m in medium speed or beyond 150 m in high speed.The four speed reduction markings can cause the changes on driving speed,from the view of the deceleration effect,three-dimensional marking and the visual illusion marking have a large deceleration in high speed operating conditions,which may cause some drivers become high tension or take emergency braking,and a reasonable choice should be conducted based on road conditions in the actual process.The fishbone-arrow marking has a high degree of identification and a great deceleration effect,and the deceleration changes smoothly,which can be used in actual road construction.