Research On Urban Multi-mode Public Transport Allocation Based On Limited Rationality

With the continuous development of social economy,the social population has flocked to cities for development,and the urban population has increased rapidly,so the corresponding travel needs of urban residents need to be met.Therefore,it is necessary to solve the current traffic problems from the perspective of traffic supply and demand,and the modern travel modes are constantly diversified,which also provides effective help to meet the urban travel needs and solve the travel problems.Based on this situation,the state puts forward the transportation development policy that needs to concentrate on the development of urban public transportation,so it is of great significance to study the problem of urban multi-mode public transportation.Most previous studies assumed that travelers were in a completely rational state when making travel choices.In fact,travelers have a certain rational limit,i.e.,limited rationality,and there will be differences due to personal cognitive level and information processing ability.These problems lead to the research being unable to accurately reflect the law of traffic flow.The results obtained through theoretical research are quite different from the actual travel situation of residents,which will make the traffic planning and vehicle configuration inconsistent with the travel demand,waste resources and fail to achieve the purpose of facilitating residents’ travel.Therefore,from the perspective of bounded rationality,this paper analyzes travel behavior and travel characteristics,constructs a travel route selection model based on bounded rationality,and applies prospect theory to the study of traffic flow distribution law.It proposes that the acceptability of generalized travel cost is the reference point for travel decision-making,constructs a traffic allocation equilibrium model based on bounded rationality,and designs a bi-level iterative solution algorithm suitable for the model.Finally,it makes comparative analysis and verification.It mainly includes the following research contents:Firstly,the generation of travel demand is classified,and from the perspective of bounded rationality,the traveler’s travel behavior is described in detail,and the travel characteristics are analyzed in detail.The decision-making process and the specific decision-making content in each stage are discussed.According to the corresponding characteristics of bounded rationality,the relevant influencing factors of travel decision-making are summarized.And analyze the difference with complete rationality,and discuss the applicability of prospect theory.Secondly,according to the analysis of travel process,considering the incompleteness of travel information,adding information cost to the traditional travel cost,and considering the transfer behavior of multiple travel modes under multi-mode traffic,the node label is used to record the travel cost between nodes,and a route selection model considering transfer is constructed.According to the characteristics of the model,a path search algorithm based on node label is designed on the basis of the traditional traversal algorithm.Then,based on the characteristics of bounded rational travelers,according to the reference dependence of travel decision in prospect theory,the route prospect is compared and judged according to reference points.Different from other studies,the acceptability of generalized travel cost rather than single travel time is adopted as the basis for comparison,which affects the route prospect value and travel decision result.The weight function of corresponding alternatives is given,and the passenger flow equilibrium model of urban multi-mode public transport based on prospect theory is constructed.Considering the interaction between path cost and traffic,a bi-level iterative algorithm adapted to the model is designed to solve the problem.Finally,the road network simulation analysis is carried out to get the route selection and the distribution of road network passenger flow.The effectiveness of information cost under bounded rationality is illustrated by the analysis of results.Compared with the completely rational model and the reference point setting,the rationality and feasibility of the model in this paper are shown the influence of relevant parameters on traffic balance of road network is analyzed,and the corresponding practical suggestions are given.