跨文化视角下的中美微观驾驶行为特性分析OA

[Background]Driving behavior is not only a reflection of individual characteristics but is also determined significantly by regional culture,traffic environment,and social habits,which collec-tively shape driving cultures.Comprehensive investigations into these cultural differences in driving behavior can provide support for cross-cultural applications of autonomous driving.However,existing studies are limited to a single country or local indicators and don't adequately perform systematic comparisons of driving-behavior characteristics under different cultural backgrounds.[Objective]This study aims to systematically reveal the differences in micro-driving behavior characteristics be-tween Chinese and American drivers in terms of safety,efficiency,and comfort,thus providing a ba-sis for developing culturally adaptive optimization strategies for autonomous driving.[Methods]Based on the framework of"data preprocessing-macro-traffic-state matching-three-dimensional indi-cator system construction-micro-driving-behavior comparison",six indicators are extracted from the safety,efficiency,and comfort aspects to systematically compare and quantitatively analyze the mi-cro-driving behaviors of Chinese and American drivers.[Data]An empirical analysis is conducted by integrating the Citysim dataset from China and the Next Generation Simulation(NGSIM)high-way vehicle trajectory dataset from the United States,totaling more than 28 000 vehicle trajectories.[Conclusions]Significant differences in micro-driving behavior between China and the United States are observed in terms of safety,efficiency,and comfort.Under the same traffic conditions,Chi-nese drivers exhibit higher safety,with their risk exposure time being 105.3％higher in the United States than in China,while the intensity of risk exposure increased by 95.0％.Chinese drivers demon-strate higher driving efficiency,and their relative desired velocity deviation is 3.2％～7.8％lower than that of American drivers,thus indicating a greater tendency to drive at the desired speed.Meanwhile,their average time headway is 8.48％～35.48％lower,thus enabling a more effective use of road re-sources.Furthermore,Chinese drivers exhibit significantly higher driving comfort,with their average absolute jerk being 19.72％～50.68％lower,as well as a lower frequency of acceleration and decelera-tion events,thus reflecting smoother driving behavior.[Application]This study reveals the cultural differences in micro-driving behaviors between the East and West.The proposed framework for quantifying these cultural differences is paramount for the localization optimization and global de-ployment of autonomous driving algorithms.