Urban Customized Bus Network Optimization For Commuting Demand

Traffic demand is higher in the morning and evening commute time than usual and the regular public transport service can not attract private car owners to take the initiative to change their traffic travel mode as it follows a fixed route and timetable and is less efficient.This leads to road traffic congestion,low road resource utilization and negative impact on residents’ travel satisfaction.As a new type of public transport service mode,customized bus is a supplement to the traditional public transport service mode and is able to meet multiple travel needs.However,customized bus does not have a long history of development.In most cities,customized bus appears to expose some shortcomings like low coverage,network planning chaos and inability to meet residents’ commute travel demand.Based on the analysis of relevant research at home and abroad,and combined with demand information,this paper designs the architecture of the system optimization.This paper focuses on the method of dividing the customized bus passenger distribution area and establishes the driving path optimization model in passenger distribution area,which will provide the highest level of service and meet the majority of the passengers travel needs.First of all,according to the characteristics of customized bus,this paper determines the method of network optimization and designs the partitioning algorithm of passenger flow distribution area,considering the traffic volume of the site and the regional capacity allocation.Commute passenger flow gets on at the get-on area and gets off at the get-off area,theone direct line reflects high service level of customized bus.Secondly,according to the time window information of the residents commuting and combining the time window characteristics of the site,this paper establishesa route optimization model for the get-on area and designs an evaluation heuristic algorithm to solve the model.Then,to minimize the driving time cost of the vehicle and the walking time cost of the crowd group,this paper establishes a driving path optimization model of single vehicle for the get-off and uses the genetic algorithm to find the optimal sites.Finally,based on the above-mentioned route optimization model and the algorithm of passenger flow distribution area and combined with the examples,this paper respectively obtains the number of customized buses,the traffic path and the arrival schedule.Basing on the resident commuting information,a customized bus route and line timetable for the morning and evening commute time is established.