| As a kind of urban public transport branch line,microcirculation bus plays significant role in dealing with the troubles of low bus accessibility,inconvenient short-distance travel and transfer in local areas of the city.How to carry out microcirculation bus planning scientifically and reasonably has always been the concern of experts and scholars.This paper calculates the bus passenger flow information based on the easily available bus IC card data,and then carries out the research on microcirculation bus planning.The paper introduces the concept,sort and features of microcirculation bus.The boarding stations of passengers are calculated by cluster analysis,and the information about getting off bus is calculated based on the travel chain of single passengers.Whether to transfer or not is judged according to the interval of swiping card,the transfer distance and the direction of bus operation.The card swiping rate is used to expand the number of bus trips,and finally get the total complete data.The time distribution law of bus passenger is studied.The living distribution of card-holding passengers are obtained according to the stations where passengers swipe their IC cards for the first time in a day,which lays a foundation for judging the commuting travel demand of bus in traffic district and selecting the layout area of microcirculation bus.The purpose of passenger travel are inferred according to the information such as IC card type,travel time and the number of trips,and the main demand groups of microcirculation bus are analyzed.The study of microcirculation bus planning is divided into three parts: route layout area selection,station location selection and optimal route planning.For the layout area selection part,the index system of bus accessibility calculation is established to compare the bus accessibility of each traffic district,the density of card holders living in the urban construction land of the traffic district except the senior citizen card is used as an index to judge the demand of bus commuter travel in this area.The traffic district with low bus accessibility and great need for commuting by bus is selected as the target area.For the station location selection part,taking the shortest travel distance as the aim to build a new microcirculation bus station in the bus blind area;combined with the travel demand of commuter passenger flow,some conventional bus stations are selected as microcirculation bus stations.For the optimal route planning part,taking the shortest travel time,the densest passenger density and the minimum number of bus fleets as the objective functions,the microcirculation bus line planning model is established and solved by genetic algorithm.Finally,taking Yicheng District of Zhumadian City as an example,the microcirculation bus planning is carried out by using the research method of this paper.Eight microcirculation bus stations and two microcirculation bus lines are arranged for the study area,which eliminates the bus blind area in the study area,and the feasibility of the research method is confirmed. |