Study on the Maintenance Productivity of Urban Railway with Single-line Heterogeneous Rolling-stock: Focus on Malmquist Productivity Index and Example of Old Type Rolling-stock Improvement Project

Kyoung Soo Seo, Hyun Soo Han

Research output: Contribution to journalArticlepeer-review

Abstract

Decision making about an introduction and disposal of rolling-stock in urban railway operations arc very important, not only in the initial introduction cost, but also in terms of cost, operation efficiency, and productivity incurred throughout the life cycle of the rolling-stock. In this paper, using the Malmquist productivity index, these decisions were analyzed for the Seoul Metropolitan Subway Line 1, which operates both a resistance and a VVVF rolling-stock simulta-neously on a single route. In addition, the productivity change effect was analyzed before and after a massive repair project intended to improve performance of resistance rolling-stock. As a result of the analysis, it was confirmed that there was a difference in indexes of productivity, efficiency, technological change, and variability between the old and new rolling-stocks, and there was a change in productivity before and after the massive repair project. The purpose of this study was to identify the productivity impact of operations on multiple types of rolling-stock on a single-line, and to suggest implications for decision-making of urban railway operator rolling-stock introduction and maintenance strategy.

Original languageEnglish
Pages (from-to)38-55
Number of pages18
JournalJournal of the Korean Society for Railway
Volume24
Issue number1
DOIs
StatePublished - 2021

Keywords

  • Dea
  • Maintenance
  • Malmquist productivity index
  • Operations efficiency
  • Urban railway

Fingerprint

Dive into the research topics of 'Study on the Maintenance Productivity of Urban Railway with Single-line Heterogeneous Rolling-stock: Focus on Malmquist Productivity Index and Example of Old Type Rolling-stock Improvement Project'. Together they form a unique fingerprint.

Cite this