• Journal of the Korean Society for Railway
• /
• v.13 no.3
• /
• pp.257-263
• /
• 2010

Operation and maintenance cost of a rolling stock is generally higher than its acquisition cost. Therefore, it is necessary for reducing life cycle cost (LCC) to make rolling stocks easy and low costly for operation and maintenance. In addition, their operation and maintenance support systems should be effective and efficient. To accomplish this, operator should specify LCC requirements in the early stage of acquisition and make a contractor to provide the rolling stocks of low LCC. This article presents a procedure and a verifiable LCC model available in the general acquisition process where an operator specify requirements and a contractor provide the rolling stock meeting the requirements.

• Railway Journal
• /
• v.18 no.2
• /
• pp.11-16
• /
• 2015

• Journal of the KSME
• /
• v.51 no.8
• /
• pp.44-48
• /
• 2011

철도 이해관계자인 승객, 정부, 운영사 그리고 제작사가 철도서비스에 요구하는 핵심적인 품질인자인 안전성, 정시성, 서비스 공급비용 등은 철도시스템의 신뢰성과 밀접한 관계가 있으므로 이들을 만족시키기 위해서는 체계적인 신뢰성 관리활동이 필요하다.

• Journal of the Korean Society for Railway
• /
• v.14 no.6
• /
• pp.575-583
• /
• 2011

In order to minimize the maintenance cost at local lines, Information & Communication Technology based onboard train control system is being developed. Unlike the central traffic control based fixed block system, this system use a moving block method and railway driver direct control switch and railway crossing. The purpose of this paper is to analyze the concerned main operational issues are as follows: the preparation of train operation, drivability, the role of driver and controller, block system and cost. We defined the role of driver and driver's input data for train service, and we designed the business process of driver using UML tool. We considered the aspect of drivability, DMI is needed to support the braking moment for the driver and driver training simulator. We designed the driver business process for control of switch and railway crossing. We analyzed the fixed block system and moving block system to confirm the difference with the existing operational method. The cost analysis structure is also needed for the operation cost comparison.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.43 no.6
• /
• pp.865-871
• /
• 2023

Domestic urban railway are operated by urban railway operating public enterprises, which are owned by the 6 major metropolitan local governments and private operating companies, which are established under the Private Investment Act. Among urban railway operating companies, several public enterprises that operate urban railways with many experience, performance, human resources, and public nature are making efforts to promote overseas business. Therefore, this study examines the outlook for railway and urban railway overseas business, and provides implications for the overseas business approach of domestic urban railway operating public enterprises through data research and comparative analysis on the overseas business approaches and overseas business characteristics of domestic and foreign urban railway operating public enterprises. The results were derived and suggestions for the direction of overseas business were presented. I expect that suggestions will serve as a reference for domestic urban railway operators to promote overseas projects with preparation, implementation plan and direction.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.38 no.5
• /
• pp.703-711
• /
• 2018

Recently, as various metro lines have been constructed and connected to other lines the rate of utilization has also been increased. However, the existing fare policy which the government does still stick to causes not only inappropriate action to the demand pattern but aggravation of the profit of the operation company. This study reviewed rail fare policy of major countries such as Japan and U.K etc. to improve the rationality of fare policy in Korea. In order to systematical analysis of fare policy, such viewpoints as of fare decision method, the card fare discounting system, the structure of fare, and the government subsidy policy were reviewed. Based on the results from the review, various problems and improvement plans were drawn. Through this study, appropriate fare systems to urban railway users could be given to improve the chronic deficit problem of urban railway operators.

• Journal of the Korean Society for Railway
• /
• v.3 no.2
• /
• pp.28-36
• /
• 2000

도시철도라 함은 도시교통의 원활한 소통을 위하여 도시교통권역에서 건설·운영하는 철도ㆍ모노레일 등 궤도에 의한 교통시설 및 교통수단을 말한다. 지금까지 차량성능시험은 제작사와 운영체가 자체적으로 시행해 왔으나 신조 제작차량의 잦은 고장과 사고발생으로 인하여 교통불편을 초래하고 있어, 국가에서는 국민의 생명보호와 안전사고예방을 위하여 제도적으로 차량이 영업운행 전에 성능시험을 거치도록 한 것이다. 이에 도시철도차량성능시험에 대해서 간략히 설명하며, 관련 규정을 소개한다.(중략)

• The Journal of the Korea institute of electronic communication sciences
• /
• v.10 no.8
• /
• pp.953-958
• /
• 2015

Generally, Urban railway have special characteristics with short distance journey and minimum headway intercity transportation. These days, urban railway operators choose the driverless operation system without driver. On the contrary, Conventional & high speed railway utilize for long distance and high speed running. Because of special conditions of freight railway operation compared with urban railway, operation of conventional & high speed railway is showed very different characteristics. In this paper, We compares different operation scheme of urban railway and conventional & high speed railway and then present condition for train control system based on radio.

• Nuclear industry
• /
• v.35 no.6
• /
• pp.32-38
• /
• 2015

• Journal of the Korean Society for Railway
• /
• v.16 no.4
• /
• pp.318-330
• /
• 2013

It is necessary to estimate the operating cost for constructing an urban railway system. The present study was thus carried out to develop an estimation function of the operating cost for a MRT(Medium-sized Rapid Transit) system. We selected seven independent variables that could influence the operating cost: the rolling stocks, the number of trains in operation, the length of the lines, the number of stations, the number of passengers per day, the frequency of train operation, and the number of depots. We performed a multiple regression using Excel. Three types of regression functions were thereupon developed. All of them proved to be appropriate after comparing the results of the estimated cost. It will therefore be possible to use one of these three types, depending on the assumptions of the independent variables.