Study On Collaborative Optimization Of Bus Overlap Interval Schedule Based On Bus Arrival Time

With the development of my country's economy and urbanization,the city's demand for transportation is increasing,resulting in the current transportation supply of many cities unable to meet the huge travel needs of residents.This brings great pressure to the operation of urban transportation.As a transportation method with strong carrying capacity,public transportation can effectively relieve traffic pressure in cities.Improving bus operation efficiency and optimizing bus service levels have become the main directions of urban transport development.However,the rapid development of public transport in the city will inevitably bring some new bus operation problems.The overlapping phenomenon of multi-line bus operation intervals is a new type of bus operation problem that occurs during the rapid development of public transport.This paper aims at the overlapping problem of multi-line buses in overlapping intervals,combined with the study of the bus arrival time and the inter-stop travel time of the bus,and proposes a plan for collaborative optimization of the bus schedule in the overlapping interval,and through bus simulation To verify the proposed optimization scheme.First,through the analysis of the arrival time data of some bus lines in Harbin in December 2017,the distribution rules of the inter-arrival time and the travel time between stations during the operation of single-line buses were studied.By studying the distribution fitting model of the inter-station interval time and inter-station travel time and the k-s test results of various distribution models,the distribution law of inter-station inter-station time and inter-station travel time is obtained.Secondly,based on the distribution rules of bus arrival time and travel time between stations,the actual Harbin bus 4 arrival time data is used to design and study the single-line bus simulation.By analyzing the arrival time data of the line,the bus arrival time data of each station in the line and the travel time of each station in the line,as well as the two important parameters in the simulation,the departure interval and the travel time are used to simulate the parameter design.Finally,this paper studies the optimization problem of transit overlap in transit overlap.Combining with the existing bus train research,the overlap threshold in the overlap area of bus is proposed.In the simulation of the bus overlap section,two bus arrival time data for line 95 and line 12 with actual overlap sections in actual operation were selected,and the two main parameters of the bus simulation were designed using real data.In the process of optimization,the optimization method of a single site was first analyzed,and then the optimization method within the entire overlapping interval.Add a translation departure time to the bus departure schedule,and analyze the relationship between the translation departure time and the total number of overlaps.Finally,through the results of multiple simulations,it can be verified that by shifting the departure time of the first station,the overlap problem of multi-line buses in the overlap area of the bus can be effectively optimized.