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Cost Analysis of VVVF Inverter Train Based on Life-cycle to Determine the Introduction Timing of New Trains
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 Title & Authors
Cost Analysis of VVVF Inverter Train Based on Life-cycle to Determine the Introduction Timing of New Trains
Lee, Kwang-Sub; Lee, Chan Woo; Yang, Keun-Yul; Min, Jae Hong; Shin, Jong Jin;
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 Abstract
Before urban railway vehicles reach their design life-span, operating agencies should determine when to buy new vehicles. Previous LCC (Life Cycle Cost) studies were limited because they independently focused on existing vehicles based on costs that directly impacted only the operating agency without considering effects such as social costs and the reduction of maintenance costs. Thus, it is difficult to systematically determine when to buy new vehicles. This study investigated the operating and maintenance related costs, especially from additional expenses and social costs due to unexpected vehicle failures and safety accidents, and did an economic analysis of scenarios with different discount rates. Considering that the public is very concerned about safety after the Sewol ferry accident, additional costs, which include social costs, should be included in the analysis. This study shows that the economic priority of scenarios may change depending on whether those costs are included and on the discount rate. The results of this study can help in the decision-making process for the planning and buying of new trains.
 Keywords
VVVF Inverter train;Life-cycle;Social costs;Cost analysis;
 Language
Korean
 Cited by
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