A Traffic Conflict Recognition Method Based on Driver's Eye Movement Features

Abstract

The present invention relates to a traffic conflict recognition method based on the driver's eye movement characteristics, the method is as follows: collect all pupil diameter data and blinking action data of the driver when driving on the entire virtual design road; identify the initial pupil diameter data to be matched The peak point of the pupil diameter peak of each traffic conflict in the traffic conflict is used as the initial condition to iterate, and the maximum value set of the pupil diameter peak point of the traffic conflict is obtained; The first blink point is used for positioning; the two positioning points are the starting point and the ending point of the traffic conflict. The present invention conforms to the principle of taking road users' traffic demands and physiological-psychological response characteristics as the theoretical basis of road design. Alignment design, traffic system planning rationality puts forward a new method.

Description

technical field [0001] The invention relates to a traffic conflict identification method based on the driver's pupil diameter, and relates to the field of driver's visual behavior and the technical field of traffic conflict in traffic engineering. Background technique [0002] Traffic conflict technology is the mainstream of current road traffic safety evaluation methods. Many experts and scholars have proposed many methods in conventional traffic conflict discrimination. "Method" (CN 103106811 A), "A Method and System for Identifying Accident-Prone Road Sections by Using Traffic Conflicts" (CN 103971519A) filed by Southeast University and the Traffic Management Bureau of Nanjing Municipal Public Security Bureau in 2014. Distance, relative speed and their derivative parameters are used as indicators for traffic conflict identification, resulting in a large difference between the results of traffic conflict discrimination and the driver's perception results, which is not cond...

AI Technical Summary

Problems solved by technology

[0002] Traffic conflict technology is the mainstream of current road traffic safety evaluation methods. Many experts and scholars have proposed many methods in conventional traffic conflict discrimination. "Method" (CN 103106811 A), "A Method and System for Identifying Accident-Prone Road Sections by Using Traffic Conflicts" (CN 103971519A) filed by Southeast University and the Traffic Management Bureau of Nanjing Municipal Public Security Bureau in 2014. Distance, relative speed and their derivative parameters are used as indicators for traffic conflict identification, resulting in a large difference between the results of traffic conflict discrimination and the driver's perception results, which is not conducive to the objective evaluation of road safety and the rational planning of the traffic system

[0003] The widely recognized theory of road traffic design points out that the traffic demand and physiological-psychological response characteristics of road users should be taken as the theoretical basis of road design. Safety evaluation, road design and optimization based on road users' physiological-psychological response characteristics cannot be realized. The reason is that there is no traffic conflict quantitative index that reflects the driver's psychological load and a traffic conflict identification method based on this index.

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