Research on the Impact of Flexible Marshalling Operation Mode on Platform Doors and Its Solutions
With the continuous development of urban subways,the requirements for networked operation of subways are also increasing.However,the utilization rate of line network transportation capacity is low,and there is a phenomenon of insufficient peak hours but excessive peak hours.The contradiction between improving service level and saving energy consumption is prominent.The flexible grouping operation mode has become a focus of attention,which can effectively reduce operating costs,improve sustainable operating levels,optimize transportation capacity allocation,respond to changes in passenger flow,and balance service and cost.However,the alignment issue between train doors and platform doors directly restricts the implementation of flexible train operation,posing new challenges to the design of platform doors.This article first provides an overview of subway train formation,using the 3/6A flexible formation operation organization scheme as an example to analyze the changes in door spacing and train length under different flexible formation schemes,and their impact on platform door layout.Then,corresponding solutions for the alignment of train doors and platform doors were proposed for different flexible grouping schemes,to meet the needs of different vehicle formations and operating modes.Finally,the advantages,disadvantages,and feasibility of the alignment design between train doors and platform doors under several flexible grouping schemes were compared and analyzed.The research results of this article can provide a more scientific and reasonable solution for the alignment design of train doors and platform doors under flexible grouping in subway engineering,and improve the safety and reliability of subway engineering.Secondly,the research results have certain reference value for the implementation of the flexible grouping operation organization plan of the subway.