• Journal of the Korean Society for Railway
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• v.15 no.2
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• pp.199-204
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• 2012

This study examines the mediating effect of Organizational Citizenship Behavior in the relationship between Job Insecurity and self-reported Job Performance. 207 employees from 4 Railroad Organizations (Korail, Seoul Metro, Incheon Metro, Metro 9) are selected as the main target of this study. Based on advanced researches, hypothesizes are developed and according to received questionnaires, SPSS 18.0 is used for testing empirically. Result shows that with Mediating variable OCB, Job Insecurity is negatively associated with self-reported Job Performance. And because OCB is complete mediating in the relationship between Job Insecurity and self-reported Job Performance, actually, OCB is shown to play a very important role in Job Insecurity.

• Journal of the Korean Society for Railway
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• v.13 no.2
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• pp.229-235
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• 2010

Safety is an essential requirement for public transportation, especially for railway. Railway are more safety than other means of transportation, but railway accident that is mass transportation result catastrophic result if an accident occurred. Railway operators and government are many prior efforts to prevent accident, but it is impossible to eliminate accidents. Therefore, various measures to reduce accidents as possible, and they have taken, this paper will review incident report system and safety culture which are most important factors for preventing accident. In addition, incident reporting system and an independent accident investigation and accident prevention and safety systems would be needed to improve train operating companies and related agencies for the safety of the railway is a cultural ritual. Indeed, the settlement of avalid railway safety culture will most certainly prevent railway accidents. Therefore, in the railway company and the correct understanding of railway safety culture and against the settlement plan would be reviewed in this paper.

• Proceedings of the Safety Management and Science Conference
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• 2010.11a
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• pp.651-668
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• 2010

철도 시스템은 차량, 전력, 신호, 선로구축물시스템이 유기적으로 결합된 복합시스템으로 사고 발생 시 원인규명이 어렵고 인명에 치명적인 결과를 초래하게 되며 사소한 고장이라도 열차지연에 미치는 파급효과는 지대하여 시스템의 신뢰성확보가 매우 중요하다[26]. 실제로 세계 각국의 철도산업은 시스템의 신뢰성 향상을 위해 신뢰성 기법에 기반을 둔 다양한 이론을 통해 신뢰성 향상과 안전성 향상에 최선을 다하고 있다. 본 연구에서는 철도 신뢰성관리와 관련된 국내 연구동향과 철도 운영기관 및 기업에서 적용하고 있는 신뢰성 적용 현황을 분석한다. 그리고 국외 연구 동향과 주요 적용 현황을 정리한다. 또한 철도 신뢰성과 관련된 국내외 규격을 조사하고 이들 규격의 내용을 분석한 후 국내 적용방향을 제시한다.

• Journal of the Korean Society for Railway
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• v.18 no.5
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• pp.502-511
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• 2015

The purpose of this study is to prioritize the importance of urban railway service quality through statistical analysis. This was done to maximize customer satisfaction by providing customers of urban railway services (including LRT), operated by the local government, with a better customized service quality. It was hoped that this project would boost the need for public transportation by increasing customer satisfaction, which would eventually lead to more profitable revenue. The results of validity certification of expectations and perceptions before and after the use of government funded urban railway and private sector invested urban railways show that there are gaps for 18 items for the government funded urban rail projects (p<.01), while there is no significant difference for 2 items between expectation and perception (p>.05); private sector invested urban railway projects show differences for all 20 items (p<.001). Therefore, IPA analysis is conducted to improve the service quality; this should lead to a remedy that focuses on service quality. The findings of this study will contribute to providing management strategies for boosting customer satisfaction and creating revenue through customized service quality in the urban railway operating industry (including LRT), which is currently suffering from chronic deficits.

• Journal of Korean Society of Transportation
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• v.22 no.6
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• pp.35-47
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• 2004

Using data envelopment analysis, this paper annually estimates Malmquist total factor productivity indices and decomposes them into productive efficiency change, technical change, and scale change components for three publicly-owned rail transit properties: the Seoul Subway Corporation(SSC), the Seoul Metropolitan Electrified Railways Sector of Korea National Railroad (SMESRS) and the Busan Urban Transit Authority (BUTA). The paper then conceptualizes that the property produces a single output(car-kilometers) using four inputs(labor, electricity, car and maintenance, and track) and uses unbalanced panel data consisted of annual observations on SSC, SMESRS and BUTA. The results show that the average annual growth rate of productivity of the three properties is 6.6 percent, which is 0.5 percent less than the average annual increasing rate of their labor price. They also show that the greatest part of the growth in productivity is explained by technical change and to a lesser degree by scale change and changes in productive efficiency though each of the three components contributes more than 20 percent to the growth in productivity, These results suggest that the three properties should base the increasing rate of their wages on the growth rate of their productivity and utilize existing technologies more efficiently prior to introducing new ones to raise their productivity, and that all the three components should be considered to evaluate their productivity more correctly.

• Journal of the Korean Society for Railway
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• v.18 no.1
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• pp.81-86
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• 2015

Assets are an essential part of a railway financial position and income state. The Railway industry, SOC, has characteristics of possessing vast tangible assets and incurring vast asset-related-costs. For higher liquidity and profitability, the railway industry need more active asset management. Since 2011, IFRS has its changed accounting method for tangible assets, this has subsequently affected asset management. As the railway industry has a high portion of tangible assets, the accounting method for tangible assets is very important. This paper analyzes the newly adopted accounting method for tangible assets and proposes LCC for effective asset management.

• Journal of the Korean Society for Railway
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• v.20 no.4
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• pp.558-567
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• 2017

This study was conducted to analyze the turnover intentions of railway traffic controllers among employees of a domestic railway corporation. Variables influencing job turnover intention included exploited variables (empowerment, job stress, job satisfaction, organizational commitment, exhaustion) that have been actively studied in other fields. The results showed that the empowerment of railway traffic controllers did not directly affect job stress and turnover intention, but had a direct effect on job satisfaction, organizational commitment, and exhaustion. Job stress did not directly affect job satisfaction, organizational commitment, and exhaustion, and job satisfaction did not directly affect organizational commitment, burnout, and turnover intentions. Burnout has a direct effect on turnover intention, indicating that exhaustion of railroad traffic controllers has an effect on turnover intentions. In conclusion, empowerment has a direct effect on burnout and exhaustion has a direct effect on turnover intention. This study suggests that management of empowerment and exhaustion is important for the prevention of turnover of railway traffic controllers.

• Journal of Korean Society of Transportation
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• v.21 no.4
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• pp.113-132
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• 2003

Using nonradial data envelopment analysis(DEA) under assumptions of strong disposability and variable returns scale, this paper annually estimates productive. technical and allocative efficiencies of three publicly-owned rail transit properties which are different in terms of organizational type: Seoul Subway Corporation(SSC, local public corporation), the Seoul Metropolitan Electrified Railways sector (SMESRS) of Korea National Railroad(the national railway operator controlled by the Ministry of Construction and Transportation(MOCT)), and Busan Urban Transit Authority (BUTA, the national authority controlled by MOCT). Using the estimation results of Tobit regression analysis. the paper next computes their true productive, true technical and true allocative efficiencies, which reflect only the impacts of internal factors such as production activity by removing the impacts of external factors such as an organizational type and a track utilization rate. And the paper also computes an organizational efficiency and annually gross efficiencies for each property. The paper then conceptualized that the property produces a single output(car-kilometers) using four inputs(labor, electricity, car & maintenance and track) and uses unbalanced panel data consisted of annual observations on SSC, SMESRS and BUTA. The results obtained from DEA show that, on an average, SSC is the most efficient property on the productive and allocative sides, while SMESRS is the most technically-efficient one. On the other hand. BUTA is the most efficient one on the truly-productive and allocative sides, while SMESRS on the truly-technical side. Another important result is that the differences in true efficiency estimates among the three properties are considerably smaller than those in efficiency estimates. Besides. the most cost-efficient organizational type appears to be a local public corporation represented by SSC, which is also the most grossly-efficient property. These results suggest that a measure to sort out the impacts of external factors on the efficiency of rail transit properties is required to assess fairly it, and that a measure to restructure (establish) an existing(a new) rail transit property into a local public corporation(or authority) is required to improve its cost efficiency.

• Journal of the Korean Society for Railway
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• v.16 no.5
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• pp.430-438
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• 2013

An empirical study on railway controller and railway engineer who work in a domestic railway corporation was undertaken to verify the effects of emotional burnout and empowerment and organizational commitment on cooperation and safety behavior. The results of the analysis confirmed that the relations between emotional burnout, empowerment and organizational commitment as well as the relations between cooperation and safety behavior had negative effects. In contrast, the results of the analysis confirmed that empowerment and organizational commitment had positive effects on safety behavior and cooperation, and were effective because of all interactions among emotional burnout, safety behavior and cooperation. In conclusion this study convincingly demonstrates that emotional control, empowerment and organizational commitment of controller and engineer are important factors to secure safe operation of trains based on high safety behavior and cooperation behavior.

• 한국경영정보학회:학술대회논문집
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• 2007.11a
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• pp.460-465
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• 2007

국내 지방자치단체나 기업에서 기존의 TDM 방식의 교환설비를 차세대 VoIP 방식의 교환설비로 전환하면 고품질의 영상전화, 멀티미디어 서비스 등 다양한 기능과 효율성 통신비가 절감되는 효과가 있다. VoIP의 기술적용은 급속한 신기술 환경변화에 능동적인 대응의 필요성에 따라 추진되는데 많은 시간적 비용적 부분이 소요될 것으로 판단된다. 본 논문은 서울특별시 도시철도공사에서 운영중인 TDM 방식의 행정교환설비가 수명이 만료되어 "국내 최초" All IP 기반의 VoIP 방식으로 전면 교체한 사례를 가지고 연구하였다. 이 논문에서는 교체배경, 사업추진의 전략과 VoIP 구축작업 완료의 효과분석이 정리되어 있으며, 기업의 VoIP 도입시 고려사항 등을 제시하고 있다.