• Journal of Korean Society of Transportation
• /
• v.33 no.6
• /
• pp.531-542
• /
• 2015

The discussion about the structural reformation of Korean rail industry has been consistently conducted from the evaluation on Korean National Railroad's management in 1998, the foundation of KORAIL in 2005 to the approval of Suseo KTX corporation establishment in 2013 and the controversy over its privatization. This research explores the changes of government policies by applying to ACF in the assumption that those changes have been implemented due to the interaction of various external variables and main agents in policy which had existed for a long-term period that the rail industry's structural reformation has been practiced for more than 10 years. The unions failed to reach an agreement for the rail industry's structural reformation, the policies regarding the reformation have been led by superior political unions. And this research concludes that a mediator who can compromise unions' different policy preferences and means and bring up a compromised decision in conflicted situation plays a pivotal role to successfully practice these policies.

• Journal of the Korean Society of Hazard Mitigation
• /
• v.8 no.6
• /
• pp.67-71
• /
• 2008

This study is to retest of seoul traffic, all sorts of statistical data, the present condition of urban railway that local government and all sorts of research institution had researched. Even though, or something else with population and regional industrial distribution of seoul with worker and the present condition of the registrated cars and the change of increase, we have predicted the medium term and long-range solution. we have proposed the alternative plan about both of the problem that is the developmental construction direction of seoul urban railway and the resource insurance for urban railway construction.

• KIPE Magazine
• /
• v.16 no.3
• /
• pp.37-41
• /
• 2011

현대로템은 전기철도차량의 핵심장치인 주 전력변환장치(추진제어장치) 국산화 및 기술개발에 매진하여 왔으며, 성능 및 신뢰성 향상을 위하여 지속적으로 기술개발을 진행하고 있다. 또한 전력전자기술 및 산업기술 발전으로 인한 전기기기, 전력반도체, 제어기술 발전으로 전기철도차량용 주 전력변환장치(추진제어장치)도 비약적인 발전을 하였다. 이런 산업전반에 걸친 기술발전을 기반으로 현대로템은 전기철도차량용 주 전력변환장치의 원천기술 확보하면서 전기철도차량 시스템 기술 발전에 기여하고 있다. 본지에서는 전기철도차량의 핵심장치인 주 전력변환장치에 대한 이해를 돕고자 최근 전동차에 적용되고 있는 유도전동기용 주 전력변환장치인 추진제어장치를 소개하고자 한다.

• Journal of the Korean Society for Railway
• /
• v.12 no.5
• /
• pp.778-787
• /
• 2009

This paper illustrates some examples of socio-economic changes brought about by railroads in Korea. The Korean railroad network has been running for 110 years since it started operation in 1899. The opening of railroad system in Korea has had a huge influence on its society, not only transportation but also in the development of infrastructure and formation of new cities, such as Daejeon Metropolitan City, which were built along with the rail network. This paper will examine some examples of the influence that railroads have had on Korean society: the changes of transport route from road to railroad, the emergence of new cities, industries and culture. Also, this paper will look over the various functions of railroads in Korea, and then it compares with those of foreign countries. It gives us chance to examine a specificity as well as universality in the function of railroads.

• Proceedings of the KSR Conference
• /
• 2006.05b
• /
• pp.911-916
• /
• 2006

• Railway Journal
• /
• v.17 no.1
• /
• pp.18-30
• /
• 2014

• Proceedings of the KSR Conference
• /
• 1998.05a
• /
• pp.115-126
• /
• 1998

경부고속철도는 서울-부산 간의 교통난 해소와 토목, 기계, 전자, 제어 등 관련 산업의 기술향상을 기할 수 있는 우리나라 최대의 국책사업으로써 1개 열차에 1,000여명의 승객을 싣고 시속 300km의 고속으로 열차를 안전하게 운행할 수 있는 시설을 갖추어야 하기 때문에 고도의 정밀성과 완벽한 품질을 요구하는 고난도의 사업입니다.(중략)

• Proceedings of the KSR Conference
• /
• 1999.11a
• /
• pp.35-45
• /
• 1999

This Paper presents a concert of Public Service Obligation related with validity, suitability and rationality. As we know, The Public Service Obligation of KNR is a largest factor of loss in the Railroad Industry. In the future, PSO concept and Calculating methods have to be changed for providing rational Public service based on the various focus.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.24 no.5
• /
• pp.399-408
• /
• 2006

Railroads have been developed as public transportation and made a great contribution to national economic growth. But after the mid-20th century, its qualities have been getting low because of focusing on the investment and development of cars and airplanes. Its role which is getting the excellent merits on the mass transportation, rapid transit, safety, state period, energy efficiency, and prevention of environmental pollution has been reconsidered. Elements of horizontal alignment are needed in the case where the existing railroad lines should be improved or moved. If its design drawing was lost or damaged, it is impossible to recover. It is not easy to repair for it as disasters. We must understand an existing railroad line to bring a function included a basic geography situation. In this study, we acquire, analyze, and process the digital images of the railroad and then reappear shape of three dimension. And we expect to be utilized to construct the facility information by extracting the alignment elements of existing railroad lines reversely.

• Journal of Korean Society of Transportation
• /
• v.22 no.6
• /
• pp.159-173
• /
• 2004

Using a generalized translog multiproduct cost function model, this paper examines economies of scale and scope in the vertically-integrated Korean railway industry. The paper then conceptualizes that the Korea National Railroad (KNR) produces four outputs (passenger-kilometers, ton-kilometers of freight, average length of passenger trips, and average length of freight haul) using three input factors(labor, fuel and maintenance, and rolling stock and capital). Using time series data collected from the KNR's annual records for the years from 1977 to 2002, the simultaneous equation system consisting of a cost function and two input share equatins is estimated with the Zellner's iterative seemingly unrelated regression. The findings show that the cost function corresponding to a non-Cobb-Douglas, non-homothetic, and non-homogeneous production technology adequately represents the KNR's cost structure. On the other hand, the Korean railway industry experiences sizeable overall scale economies, which result from substantial product-specific scale economies associated with passenger-kilometers and freight ton-kilometers and from scope economies associated with their joint production. In addition, the magnitude of economies of scope is influenced largely by the ratio of passenger trips, and has increased over time as the former has increased while the latter has decreased.