• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.1023-1030
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• 2011

The purpose of this article is to find out and analyze the diverse factors that are incurring stress to the railway drivers, and to depict the relationship among personality, job stress, job satisfaction, and accidents. To attain this purpose, the authors designed the questionnaire based on in-depth interview, scrutinized the factors of stressors, and statistically tested the study themes on the moderating effects of Personality Factors such as Locus of Control, Self-Efficacy, and Organization-Based Self Esteem on the relationship between Job Stressors and Job Satisfaction/Accidents, for the 212 samples received from KORAIL, Seoul Metro, and Seoul Metropolitan Rapid Transit. Resultedly, one of the findings indicate that certain aspects of a driver's personalities, as measured by locus of control, self-efficacy, and organization-based self esteem play important roles in predicting the level of job satisfaction, job stress and accidents.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1817-1823
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• 2007

In this study, we have studied rail infrastructure related to emergency action to manage the risk when emergency caused by faults of facility or rail vehicle during operation happens. Especially we have compared the effect of emergency action with examining the structure of vehicle, tunnel, bridge and access road, etc which are related to emergency action. Also, we have tried to analyze effects of radio and communication equipment, lifesaving and refuge which could be used for rolling stock, station, control room, tunnel, bridge and etc, and we have presented the way of reporting the emergency to the train driver or crew, control room, outside networks which could be used by passengers in vehicle, station, railroad line. Based on these, we have analyzed the conduct of emergency action in length of time when emergency happens in railway and high-speed railway, and studied the method of which passengers could be guided safely and escape from the scene of the accident.

• 한국도시철도학회논문집
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• 제6권4호
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• pp.259-268
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• 2018

본 논문은 서울교통공사 및 한국철도공사의 기관사를 대상으로 인적오류 위험요인과 관련 경험빈도에 대한 설문을 수행하여 기관별 운행시스템과 호선별 운행시스템 관점에서 오류유발 요인을 분석하였다. 도시철도 사고유발의 근본적인 원인 제거와 감소를 목적으로 하며 도시철도를 운영하는 시스템에서 발생하는 인적오류는 사고발생의 종류와 상황에 따라 대처하는 문제와 인지적 문제를 포함하고 있기 때문에 요인별 관점에서의 연구를 기반으로 접근하고자 한다. 인적오류를 감소시키는데 기여하여 도시철도 사고를 저감 하고 지속적으로 안전한 철도 운행이 될 수 있도록 하고자 한다.

• 한국철도학회논문집
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• 제15권6호
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• pp.645-653
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• 2012

본 연구는 KTX기장의 개인-환경(직무,조직,동료)적합성이 직무만족, 조직몰입 및 이직의도에 미치는 영향과 개인-환경적합성과 이직의도간의 관계에서 직무만족과 조직몰입의 매개효과를 실증분석 하였다. 분석결과, 개인-환경적합성은 직무만족, 조직몰입 및 이직의도에 대부분 유의미한 영향을 미치는 것으로 나타났으나, 개인-직무적합성은 직무만족에, 개인-동료적합성은 직무만족과 이직의도에 각각 유의미한 영향을 미치지 못하는 것으로 나타났다. 직무만족 및 조직몰입의 매개효과 또한 대부분 매개효과가 있는 것으로 나타났으나, 개인-조직적합성과 이직의도간의 관계에서 직무만족의 매개효과가 없는 것으로 나타났다. 결론적으로 본 연구는 KTX기장의 이직의도를 파악하고 이를 예방하기 위해서는 전반적인 개인-환경적합성을 높임은 물론, 직무만족과 조직몰입 향상방안 마련이 중요하다는 사실을 시사하고 있다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.165-171
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• 2011

A Consider the dead man's switch installed in each and every locomotive cab, which support operational safety on railways around the world. The concept is very simple - every 150 to 180 seconds an illuminated push-button demands to be acknowledged so as to know that the Train Driver is alive and active. In the absence of a response over a period of minutes, the vigilance control will automatically apply the train brakes and bring the train to a stand. If we multiply the resetting of the vigilance control 60 times per hour by a 10-hour shift it equals 600 presses of the button during the shift that a Train Driver must pay attention to and acknowledge. This adds a fair bit of pressure on the train driver's job, particularly when he/she is driving through stations, with passengers moving about on platforms in an environment of complex signaling arrangements - all the while looking out for restricting signals. From this perspective, the Vigilance System's demand to be acknowledged every 150/180 seconds is disturbing and can unnecessarily take a driver's attention away from what is happening outside the confines of the cab. A much more dramatic situation can happen when a train driver is driving hour after hour at night when, by Mother's Nature request - people need to sleep. Experience and research shows that the the dead man's switch can be pressed by train driver in a state of deep relaxation and 'micro-sleep'. The vigilance control system which is applied to reduce the drive load considering bio-response multiple unit train is proposed.

• 한국철도학회논문집
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• 제12권6호
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• pp.852-858
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• 2009

본 논문은 기존선을 고속으로 운행하기 위해 개발된 한국형 틸팅열차 차상신호장치의 신뢰성관리방안에 대한 연구이다. 기존선 자동열차방호(ATP) 및 자동열차정지(ATS)구간을 운행하는 틸팅열차의 안전한 운행을 위해, 선행 열차위치 및 선로환경에 따라 부여된 이동권한 및 제한속도를 기준으로 제동곡선을 생성하여 기관사 실수 및 장애로부터 열차의 안전을 확보하는 차상신호장치의 신뢰성관리방안을 제시한다. 또한 제시된 방안을 기준으로 열차제어시스템의 신뢰도를 예측하고, 검증하는 방안을 국제규격인 IEC 62278(EN 50126)을 기준으로 수행한 사례를 제시한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1373-1380
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• 2011

Seoul Metro has been continuously growing after its foundation on August 15, 1974 and is currently acting the leading role in the city transportation which is now used by 4,130 thousand people (as of early 2011) on a daily average. The number of the electric rail cars also increased significantly from 60 cars at the time of foundation to 1,954. And the types of the cars also started and operated with the rheostatic control cars in the 70s to the chopper control cars in the 80s and VVVF control cars in the 90s. But the control devices of the driver's cabs haven't been accustomed to the drivers because of it's diversity. Therefore, This study carried out the survey for the preferences of control devices from the incumbent drivers at Seoul Metro. And we analyzed it and suggest a method for standardization of it's locating and naming the major control devices in the driver's cab as the consideration of their preference for it's efficiency, safety, and convenience.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1269-1274
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• 2011

To cut down the maintenance expenses at branch lines, the foreign developed countries have developed the low-cost signalling on low-density lines. These examples are FFB(FunkFahrBetrieb) Radio based train operation by German railways(Deutsche Bahn AG), ERTMS REGIONAL by Europe and LOCOPROL system using a GPS. Also, Korea is developing Information and Communication Technology based low-cost signalling on low-density lines. The characteristics of this system are directly controled switch and crossing by driver. For the purpose of this paper, we reviewed the business process for switch and crossing control. Specially, we compared and analysed both methods whether the driver takes control over the operation procedures of switch or the control message is carried by the command of the controller. And by utilizing the instrument of UML, I planned the switch according to the control authority and the operation procedures needed for the control of crossing.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.322-325
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• 2005

TTX(Tilting Train eXpress) is being designed for improving the speed of conventional railway. The purpose of this study is to evaluate energy absorbing capacity and driver's survivability for a design candidate of the front end structure of TTX. A FE model with honeycomb block, under frame, and body frame is generated for crash simulation. Based on a level-crossing accident scenario, numerical simulation is performed using LS-DYNA. The results of crash analysis show that strength improvement of the current front end structure design candidate is needed to ensure driver safety.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1195_1196
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• 2009

Light rail transit is classified to rubber-tired LRT, lear induction motor LRT, steel wheel LRT, monorail and tramway. LRT except for tramway are usually operated without driver and tramway are driven depending on driver's sight like usual car. LRT, which is one type of urban guided transit, shall be operated according to domestic "Operational Regulation for Urban Guided Transit" but existing regulation does not contain the safety related codes for driverless operation. In this paper, we investigate "IEC 62267 : Railway Application-Safety Requirements for Automated Urban Guided Transit" and compensate for existing operational regulation by referring to international standard and operational rule of commercial line.