Study On Operation Adjustment Of Tram Considering Passenger Flow Distribution Under Two-way Operation Interruption

In the face of increasing demand for passenger travel,various uncertainties have caused disruptions in the bidirectional operation of trams,resulting in issues such as disorderly operations,passenger delays,and difficulties in scheduling decisions,severely constraining their operational efficiency,safety,and punctuality advantages.In response to unexpected disruptions in bidirectional tram operations,this paper focuses on how to rationally utilize line configuration resources,timely propose reasonable operational adjustment plans in combination with route operating schemes,and evaluate operational adjustment plans based on passenger flow distribution to select effective plans to cope with peak passenger flow periods.This paper takes Guangzhou Huangpu Tram Line 2 as the research background,and conducts the following work in terms of operational organization and adjustment,scheduling decisions,passenger flow distribution research,and passenger flow evaluation under bidirectional operation disruptions:Firstly,analyzing line configuration resources and operational environment to determine the operational status of adjustment plans.Researching the conditions of Guangzhou Huangpu Tram Line 2,characteristics of passenger flow distribution,and operating conditions of cross-route operations to determine the actual impact of trams under bidirectional operation disruptions in the current operational environment.To reduce the impact of disruptions,an adjustment method for changing the operational status of adjacent stations in the up and down directions of the disrupted section is proposed,including using crossover lines for small loop operations,holding at turning stations,and canceling operations.The determination of the adjustment method for operational status provides a foundation for the study of tram timetable adjustments under bidirectional operation disruptions.Secondly,using the adjustment method of changing the operational status of adjacent stations in the up and down directions of the disrupted section,combined with changes in line basic data and passenger flow distribution,specific operational adjustment plans are solved.Based on the configuration information of tram stations,crossover lines,and other line elements,as well as the planned timetable,the adjustment plan is studied in conjunction with relevant safety constraints of trams.A tram operational adjustment model is established with the goal of minimizing the total delay time of the line and the number of canceled tram operations under bidirectional operation disruptions,to achieve coordinated adjustment of operational organization plans and timetables.At the same time,to flexibly cope with bidirectional operation disruptions during peak passenger flow periods,the passenger flow distribution after adjustment of the operational plan is characterized,and further analysis and evaluation of the passenger service level of operational adjustment strategies during peak periods are conducted,selecting more suitable operational adjustment plans for peak passenger flow periods based on the goal of minimizing the total travel time of passengers,and establishing a passenger flow evaluation model for tram operational adjustment strategies.Finally,taking Guangzhou Huangpu Tram Line 2 as a case study,simulation is conducted based on line basic data,planned timetable,actual passenger capacity,passenger flow origin-destination data,etc.,using genetic algorithm and taboo search algorithm to solve the model.The results show that the operational adjustment model for tram bidirectional operation disruptions can significantly reduce the total delay time and provide a basis for tram bidirectional operation disruption adjustment research.Meanwhile,the operational adjustment strategies selected by the passenger flow evaluation model can effectively reduce the total travel time of passengers during peak passenger flow periods compared to the operational adjustment strategies without utilizing the evaluation model,and can accurately and efficiently adjust the operational plans of multiple trams.At the same time,the operation adjustment strategy selected through the passenger flow evaluation model can effectively reduce the total travel time of passengers under bidirectional operation interruption during peak passenger flow hours compared to the operation adjustment strategy without using the evaluation model,and accurately and quickly adjust the operation plan of multiple trams.This paper includes 36 figures,15 tables,and 57 references.