• 대한안전경영과학회지
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• 제17권3호
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• pp.53-63
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• 2015

This study highlights empirically the relationship among major constructs such as accident, fear and anxiety emotion, self-efficacy, and negative spillover of work, focused on the railway drivers. The differentiated factor of this study is in that the experience of accident was posed as exogenous variable. The main statistical tool was Regression. Hypothesis tests based on 201 samples verified that the experience of accidents showed a significant effect on negative spillover of work mediated by fear and anxiety, with moderating effect of self-efficacy between fear and anxiety and negative spillover of work. However, the moderating effect was shown as increasing the degree of negative spillover of work, since the drivers recognized their fear and anxiety accrued by accident experience as uncontrollable. This findings suggest the need for mitigating driver's negative emotion - fear and anxiety - through an introduction of practice such as exemption of settlement obligation in accident site and lowering of the penalty for accident responsibility.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.658-670
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• 2007

철도수송현장에는 인적오류에 의한 사고가 대부분이며 그중 직접 열차를 조종하는 기관사의 신호 확인 결여, 제동취급 불량, 억측운전, 타성에 젖은 불안전한 습관 등이 사고의 원인되어 사고가 발생되며 판단과 조치미숙으로 병발사고로 이어진다. 우리는 10년간 운전사고 통계분석으로 사고유형과 발생 비율을 조사하고 철도원들의 인적오류로 인한 국내외 사례를 분석하고 대구지하철 화재사고와 서울도시철도 7호선 화재사고를 비교분석을 하며 일반철도와 지하철 1인 승무로 인한 문제점을 찾고자 한다. 또 철도사고를 방지하기 위해서는 이론과 기능이 겸비된 우수한 인력을 양성해야 하는 가운데 철도기관사 양성 시스템과 다른 나라 양성제도와 법과 규정을 비교하고 사상사고로 인한 직업병과 그 대책을 찾기로 한다. 결론으로 사고원인은 인간에게 있으며 교육 및 인사시스템에 많은 문제점이 발견되어 직군과 직렬의 개방이 필요하며 다양한 인적자원을 적의적소에 배치하여 1차적 인적오류를 차단하고 직업병 발병과 처리를 조기에 해결할 수 있으며 철도 접근성이 없는 일반인 공채보다 직원가운데 기관사를 양성하는 교육시스템 전환과 지하철 열차화재나 차량고장사고로 처리를 위해 선진국처럼 2인 승무를 대체할 제도적 법제화와 1인 2기 인사시스템 개선이 필요하다.

• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2003년도 추계학술발표대회 논문집
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• pp.203-206
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• 2003

Using composite materials for the carbody of tilting train has many advantages such as manufacturing variety, specific high-strength ＆ stiffness characteristics, and long-life durability, but the strongest advantage could be the possibility of lightweight product. In the leading countries, the composite materials are used for the material fur drivers'cabs, interior/exterior equipments for railway train, and it is now developing the composite materials applied for the train carbody structure. In this paper, we conducted the evaluation of structural stability for the aluminum and composite carbody of the Korean Tilting Train express(TTX) with the service speed of 180km/h.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.1714-1721
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• 2007

TECA (Terminal Cabin), the terminal device which offers the information to the driver about the condition of High Speed Train(KTX), analyzes the system of train and plays a role of corrective maintenance guideline to a driver when a breakdown occurs. It also supports the driver to decide the situation of the train by offering a necessary information, in communicating with MPU(Main Processor Unit). For Localization of TECA, it is necessary to analyze communication protocol between TECA and MPU. As a part of analysis, communication protocol between OBCS(on-board computer system) and add-on devices has analyzed for the first step. Also with protocol analyzer appropriate method was offered for TECA and MPU protocol analysis. Finally, by appling proposed method to the drivers consol suitability was verified.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1235-1242
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• 2009

The Emergency Exit System is evacuation equipment that operated by crew or passenger when emergency state such as fire, accident, etc in the rolling stock. Generally front emergency exit is installed in the drivers area and it is isolated to passenger area, so its design is little big easy. But front emergency exit that is installed in driverless vehicle have to consider not only anti-vandalism and failure but also its design because it is installed in the passenger area. Therefore, we survey the characteristic, function and needed condition the emergency front exit of driverless vehicle and present the developing system that can be a help to make design.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.2040-2045
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• 2008

The priority of Crashworthiness concept for rolling stock is progressively increasing to reduce the damage of drivers and passengers as well as the car. For the first step of this research, the analysis of the crash elements have been performed. Also the longitudinal collapse force and mode is important point for whole carbody structure to guarantee the lower force at end part rather than the main passenger area. The carbody quasi-static collapse analysis and real test has been performed in the research. The crash elements FEA and test has been performed as well. After the initial Analysis and test, the correlation analysis between the FEA and test has been performed by FEA tunning. All this result will be used for real crashworthiness design for carbody structure.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.1524-1530
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• 2008

Generally a road vehicle's wrong entry into level crossing gives rise to hazardous events, the eventual collision with a approaching train depends on the effective operation of safety barriers such a abnormal condition detecting or emergency braking. In this paper, the risk assessment models developed for the level-crossing accidents will be introduced. The definition of hazardous events and the related hazardous factors are identified by the review of the accident history and engineering interpretation of the accident behavior. A probability of the hazardous events will be evaluated by the FTA, which is based on the accident scenario. For the severity estimation, the critical factors which can effect on the consequence will be reviewed during the ETA. Finally, the number of casualty for the public(vehicle drivers) and the train passengers are converted into an equivalent fatality.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1581-1586
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• 2009

The CEM (Crash Energy Management) concept is getting important in rail vehicle design to minimize Injury on passengers and drivers on crash event. In this paper, the accuracy of the FEA analysis result was verified through the crush test on the front part of a non-CEM based carbody. Using the verified FEA analysis method, the energy absorbing capability of the CEM based carbody was estimated.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1198-1206
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• 2009

Peripheral devices of OBCS in kyeongbu KTX serve various function. those services operate to make sure the safety of trains by displaying some malfunction signs of system and help maintain them appropriately. and they also provide various services for passengers in KTX. They divide into TECA which supports drivers with various data, PID which displays where to go, FDTR, HVAC, MDT etc. To develop superannuated devices, maintain and check its malfunction., we need to analyse hardware specification, OBCS and also protocol for communication devices simultaneously. here, we're trying to find how to find efficient approach by using a protocol analyser properly. We're going to develop peripheral devices to elevate and improve maintenance functions by collecting, compiling data.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.423-429
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• 2004

The concurrent engineering technologies have been broadly used in the field of the design, testing, manufacturing and maintenance works to reduce development time and costs. For this purpose, many design environments with the product data management system, the virtual engineering system and web database system are developed. In this research, we developed the driving simulator of the KTX(Korea Train Express) as a basic study for building the concurrent engineering design environment of rolling stock. The virtual track was developed from the Seoul to the Busan and the Daejeon to Mockpo to generate immersible driving environment. Also. fault generation systems were developed to educate drivers of the KTX. We expect to reduce the time and costs of newly developed rolling stock using the design environment developed in the research.