| With the development of urban road networks,more and more information needs to be expressed in traffic signs.At the same time,the driver’s ability to recognize is limited,so that he does not have enough time to recognize and understand this information,which affects road traffic safety.At the same time,the number of signs and markings is only increased blindly,and the coordination with existing signs and markings is ignored,resulting in conflicting expressions between signs,between signs,and between signs and signs.Driving into or about to enter these road sections or intersections will cause unnecessary doubts and affect driving operations,which may cause traffic accidents.Moreover,although the existing road marking guidelines have relevant regulations on the coordinated setting of traffic signs and markings,they are all qualitative descriptions of the coordinated setting of signs and markings on various road sections and intersections,and lack a quantitative description.In order to solve the above problems,this paper puts forward the method of collaborative setting of markers and the concept of collaborative distance.Taking the improvement of the prompt effect of traffic warning signs as the goal,analyze the regulations and rules related to the collaborative setting of signs and markings,and further analyze the influencing factors of the collaborative setting of warning signs and markings,and summarize the more prominent prompting sign setting problems on urban expressways.Select the urban expressway as the research object and select the coordinated setting of the exit signage marking,the coordinated setting of the deceleration signage of the sharp turn section,the coordinated setting of the entrance confluence signage,and the coordinated setting of the deceleration signage line connecting the main and auxiliary roads,above The four types of expressway conditions are used as the research scope.The characteristics and types of the prompt signs and markings to be set are studied,and the driver’s visual recognition process under each condition is analyzed.Using E-prime,Smart Eye Pro,Adobe Premiere and other software to conduct a simulated driving test,an independent sample test was carried out on the test data,and analysis of the driver’s gender,the presence or absence of myopia,the presence or absence of driving age,age and education,etc.And the effect of visual recognition of the reticle to screen out the main influencing factors and irrelevant factors.Established a model for setting up expressway exits,entrances,sharp bends,and traffic prompt signs and markings connecting main and auxiliary road entrances,and proposed setting methods,quantitative analysis of different design speeds.the spacing between signs and markings,and the amount of sign information,etc.In this case,the impact on the driver’s visual recognition effect.It is further calculated that when the visual recognition time is the smallest,the setting distance between the sign and the marking line is taken as the optimal distance for collaborative setting,that is,the collaborative distance,which is used as the reference value for the coordinate setting of the urban expressway traffic prompt sign and the marking line.Using the concept of the coordination degree of the composite system,an order evaluation model of the two subsystems of the traffic prompt signs and markings of the urban expressway was established,and the evaluation model of the coordination degree of the composite system of the prompt signs and markings was used to evaluate the traffic warning signs and markings The degree of synergy between the lines,and the test results of simulated driving are used as actual cases to analyze the evaluation results. |
