| Urban traffic demand is growing rapidly,and urban subway as a large-capacity transportation tool has become a necessary means to solve the lack of urban transportation capacity.At the same time,the development model of public transportation priority is an inevitable choice for urban progress and sustainable development,and urban rail transit occupies an important position in the development model of public transportation priority.my country’s urban subway construction is in a period of rapid development,and different cities are in the stage of construction or opening of subways every year.Therefore,how to ensure that the subway lines realize network integration and coordinated services with conventional buses after the opening of the subway line,and to give full play to the advantages of the public transportation priority development model,is an urgent problem to be solved.This article first analyzes the roles played by urban subways and conventional buses in the urban public transportation system.Based on the healthy competition and cooperation of the two modes of transportation,it deeply analyzes the main research content and processes of the synergy and integration of urban subways and conventional buses,and clarifies The key technologies and steps studied include the determination of the influence scope of subway passenger flow,passenger flow demand analysis and route optimization methods.Secondly,taking subway stations as the research object,based on the theory of accessibility,a mathematical model is established to characterize the accessibility of passengers to the city center with the generalized travel cost,and the influence range of passenger flow is solved based on this model.Aiming at the comprehensive influence of the city’s multi-central area,a modified Huff model is introduced to solve the passenger flow attraction probability,and the feasibility and rationality of the method is verified by calculating the influence range of each station of Shijiazhuang Metro Line 2 as an example.Then,comprehensively considering passenger flow volume,passenger flow connection time,and passenger flow connection efficiency,a conventional bus route optimization model is constructed.On the premise of accelerating the number of iterations and enhancing population evolution,the coding process of genetic algorithm is improved,making it suitable for solving the mathematical model built in this paper.Finally,taking Shijiazhuang Metro Line 2 as the research object,based on the theory and method of the coordinated integration of urban subway and conventional public transportation studied in this paper,the adjustment plan of conventional public transportation along Line 2 is proposed,which proves the feasibility and applicability of the method.Provide reference for public transportation management. |