Study On Route Choice Behavior Based On Expected Regret Under The Impact Of Traffic Information

With the rapid development of the national economy and the rapid advancement of the urbanization process,the urban traffic problem caused by the imbalance of traffic supply and demand has become a shackle that restricts the sustainable development of the economy and society.Under the time background of economic and social information empowerment,traffic information services have become an important means to alleviate urban traffic problems,subtly affecting people’s travel choice behavior,and analyzing the mechanism and rules of traveler choice behavior under the condition of traffic information has become the field of transportation,which has been an important topic that needs to be improved urgently.Based on this,this study constructs a traveler’s route selection model based on the assumption of bounded rationality,and explores the route selection mode under the combined influence of traffic information and travel experience.The specific research contents are as follows:This study first comprehensively sorts out the behavior mechanism of traveler’s route choice under the condition of traffic information.Based on the assumption of bounded rational behavior of traveler,it discusses the necessity of incorporating regret decision rules and information update process into the study of route choice behavior.Secondly,from the two aspects of travel experience and traffic information,it analyzes the influencing factors of route selection behavior in the risk decision-making environment,and provides a theoretical basis for the construction of subsequent route selection behavior models.Then,taking expected regret as a prerequisite for individual decision-making behavior,based on the Bayesian method and Weber’s law,the traveler’s conditional learning and feedback mechanism was introduced,and a route selection behavior model based on expected regret was constructed.On this basis,the perceptual update rate of traveler information is defined to quantitatively evaluate the value of the update mechanism on the traveler’s route choice behavior.Considering the route selection behavior of travelers with heterogeneous risk attitudes,the quantitative relationship between travel time reliability and travelers’ risk attitudes is determined,and the mechanism of risk attitudes on travelers’ route choice behaviors is analyzed based on the route choice model.The study found that travelers with higher average risk aversion tend to choose the route plan with higher stability of decision-making attributes,and the information update mechanism has different degrees of adjustment effect on decisionmaking behavior under the combination of heterogeneous risk attitudes.Considering the route selection behaviors under different traffic information quality and aging scenarios,the quantitative relationship of traffic information quality based on information reliability is constructed,and the impact of information quality and aging scenarios on traveler’s route choice behavior is analyzed based on the route choice model.The research results show that for the update process based on traffic information,reducing information error and improving information reliability can help reduce the regret expectation and uncertainty of traveler’s route choice.For the update process based on travel experience,the traffic information based on real-time road conditions has a more significant positive update effect on the improvement of traveler’s decision-making certainty.To a certain extent,this study enriches the theoretical research on the bounded rational decisionmaking behavior of travelers under the condition of traffic information,and provides a new analytical perspective for the optimization of traffic information services.