High-robustness bus departure time determination method

Abstract

The invention relates to a high-robustness bus departure time determination method. The method comprises the following steps: S1 determining a compilation time period of a bus departure time; S2 acquiring bus route related operation data in the time period; S3 calculating a bus passenger arrival rate function in the time period; S4 solving the departure time of each shift in the time period; and S5 outputting a departure time table. According to the method for determining the departure time, when the passenger flow demand fluctuates, the strongest robustness can be shown on the comprehensive performance of the two indexes including the departure interval uniformity and the passenger capacity balance, the reliability and comfort of the public transportation service are improved, and the attraction of the public transportation service is improved.

Description

technical field [0001] The invention relates to the field of urban public transport systems, in particular to a method for determining bus departure times with strong robustness. Background technique [0002] In recent years, my country's urbanization process has been significantly accelerated, the number of motor vehicles has increased year after year, the contradiction between urban transportation demand and supply has become more prominent, and traffic congestion has become an urgent problem to be solved. Bus and tram transportation (referred to as "bus"), as a large-capacity and affordable urban transportation mode, plays an important role in alleviating urban traffic congestion. [0003] However, since the end of 2014, the bus passenger volume has shown a downward trend year by year, and improving the attractiveness of bus services is an important task at present. In bus operation, the frequency of departures affects the operating costs of bus companies, and the settin...

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Problems solved by technology

[0004] Find (Ceder, A., 2007.Public transit planning and operation: Theory, modeling and practice.Elsevier, Butterworth-Heinemann, Oxford, UK.) through literature retrieval to prior art, the commonly used methods for determining the departure time of buses mainly include The following two types: one is the method of determining the departure time at uniform intervals; the characteristic of this method is that the departure intervals of the bus trips within the compiled time period are equal, and its advantages are good reliability of bus services, the longest waiting time for passengers is the smallest, and the disadvantage is passenger flow When the demand fluctuates greatly, the passenger capacity of the trips is extremely unbalanced, and the trips with high passenger flow demand have a large passenger capacity, overcrowding in the car, and the comfort of the bus service is poor

The second method is the method of determining the departure time with balanced passenger load. The characteristic of this method is that the passenger capacity of the bus schedules within the time period is balanced. When it is large, the departure interval is extremely uneven, and the departure interval of the shift with low passenger flow demand is too large, and the reliability of bus service is poor

[0005] Since the fluctuation of passenger flow demand is inevitable in bus operation, the above two methods for determining the departure time are contradictory in terms of the reliability and comfort of bus service. The improvement of bus service reliability will sacrifice its service comfort ,vice versa

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