• Title, Summary, Keyword: Railway safety

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Development of the Assessment Indicators for Railway Safety

  • Song, Bo-Young;Moon, Dae-Seop;Lee, Hi Sung
    • International Journal of Railway
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    • v.5 no.4
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    • pp.175-181
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    • 2012
  • This study proposes a model for railway safety assessment with which the safety of whole railway system can be evaluated. The purpose of the assessment model is to generate safety indicators which quantitatively represent the degree of railway safety. Safety indicators were proposed as three indicators according to their functions; accident indicators, safety management indicators, and safety culture indicators. This paper describes the first result on the safety target which will be a key starting point toward the development of safety assessment model. It is recommended that the safety target to be composed of several sub-targets are apportioned to constituent components. It is concluded that the classification of safety target has influence on deciding components or attributes that constitute each sub-indicators; accident indicators, safety management indicators, and safety culture indicators. Based on this study, a railway safety assessment model will be developed in the following study.

A Study on the Effect of Safety culture on safety in railway industry (철도산업에서 Safety culture 가 Safety에 미치는 영향에 관한 연구)

  • Heo, Eun-Mee;Kim, Sa-Kil;Byun, Seong-Nam
    • Proceedings of the KSR Conference
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    • pp.1783-1786
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    • 2007
  • The purpose of this study is to analyze human safety culture of the railway driver in domestic railway industry. This study proposes safety culture improvement of domestic railway by intensively comparing railway safety system overseas to reinforce domestic railway safety. Domestic railways well known the well-organized railway safety culture has brought up safety issues on their process of private management. With this process, also, domestic safety culture is requested by increasing sense of the safety for general public. This study expects Korean railways to become a well-organized that as removing insecure factors of domestic railway based on result comparing and analyzing the manual, factors and requirements of guideline for internal and external safety culture.

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Plans for systematizing Railway Safety Regulations using a New Model for Railway Safety System Architecture (철도안전시스템 아키텍처 모델링을 통한 안전규제 체계화 방안 연구)

  • Park Young-Su;Cho Yeon-Ok;Hong Seon-Ho
    • Proceedings of the KSR Conference
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    • pp.7-14
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    • 2005
  • A Structure of a system is usually described as same as an architecture, but they are basically different. The architecture has a broader meaning than a system structure. In other words, an architecture can include many of system structures. So, to define the architecture, we need to consider how functions of a system are consisted and integrated. The architecture defined is applicable to railway safety management systems, and it can be made as a new model for railway safety systems, which is useful to systematize railway safety regulations. To establish the architecture as applicable to railway safety regulations, it is required to compare between regulation relations by analyzing roles before/after executing railway safety regulations. Therefore, in this research, we reviewed and classified different types of regulation conditions and safety requirements for railway systems and a variety of conditions before/after railway safety regulations changes are compared by defining system architectures subject to National railway safety.

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Safety Levels Apportionment in Railway System

  • Rafrafi, Meriem;El Koursi, El Miloudi;Bourdeaud'Huy, Thomas
    • International Journal of Railway
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    • v.1 no.4
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    • pp.157-168
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    • 2008
  • The creation of a single European rail transport market it is important to increase confidence between the actors on the market and between member states who shall ensure that railway safety is generally maintained and, where reasonably practicable, continuously improved. For this purpose the European railway safety directive introduces a mechanism to adopt a Common Safety Targets (CST) expressed in risk acceptance criteria for individuals and for society. This paper focuses on the apportionment of safety targets for European railway system. We develop a generic approach based on the Functional Hazard Analysis (FHA), to analyse the safety of railway systems for a unified European network and to comply with the CSTs required by the European railway Safety Directive. We suggest to combine the FHA technique with the functional railway architecture to allocate the safety targets to the railway functions.

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A Study on the Effect of Stress, Alcohol, Fatigue on Railway safety (스트레스, 음주, 피로도 등이 철도안전에 미치는 영향에 관한 연구)

  • Her, Eun-Mee;Kim, Sa-Kil;Byun, Seong-Nam
    • Proceedings of the KSR Conference
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    • pp.1233-1235
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    • 2008
  • The purpose of this study is to analyze human factors - stress, alcohol, fatigue - of the railway driver in domestic railway industry. This study proposes railway safety improvement of domestic railway by intensively comparing railway safety system overseas to reinforce domestic railway safety. Domestic railways well known the well-organized railway safety culture has brought up safety issues on their process of private management. With this process, also, domestic safety is requested by increasing sense of the safety for general public. This study expects Korean railways to become a well-organized that as removing insecure factors of domestic railway based on result comparing and analyzing the manual, factors and requirements of guideline for internal and external safety culture.

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Study on the Improvement of the Integrated Railway Safety Audit System in KOREA (우리나라 철도종합안전심사체계 개선에 관한 연구)

  • Yun, Gyeong-Cheol;Lee, Won-Young
    • Proceedings of the KSR Conference
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    • pp.2225-2234
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    • 2011
  • According to Railway Safety Act, Korea Transportation Safety Authority (KOTSA) has been entrusted with 'Integrated Railway Safety Audit (IRSA) and has implemented the safety audit to the Railway operation agencies such as Korea Railway (KORAIL) and the Railway facility management organization such as the Korea Rail Network Authority (KR Network). The target of IRSA is to establish the effective rail safety management system and to raise the safety level of the Railway operation and facility agencies by checking synthetically their performance of safety duties with sincerity according to the Railway Safety Act. Even though newly introduced IRSA is conducted smoothly, it is necessary to study the methodology and criteria of the state's safety audit system. The purpose of this paper is to improve the efficiency of IRSA by the comparative research between IRSA and other similar safety audit system and to establish the consecutive improvement concept of IRSA. Second purpose is to confirm the effectiveness of IRSA by the analysis of the relationship between audit results and the safety level of the rail operation agencies.

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Research on Safety-related Communication of Railway Automatic Block Between Railway Stations System

  • Yun, Pei-Yan;Guo, Jin
    • International Journal of Railway
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    • v.2 no.3
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    • pp.127-130
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    • 2009
  • The system improves the safety and efficiency of railway transport, combining the advanced axle-counter with single-track semiautomatic block. Using computer, to accomplish relay-based semiautomatic block logic operation and axle-counter to check section status, it will further increase the performance of railway transport. Safety-related communication is one of the important topics in railway signal system. By referring to relevant safety-related communication standards, to research on safety-related communication of Micro-computer automatic block between Railway Stations System, the thesis introduces the basic requirements, concept model, codes, and the process, etc.

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A Study on Performance Evaluation about Safety Work of Railway Employees using AHP (AHP를 이용한 철도종사자의 안전업무 수행도 평가에 관한 연구)

  • Ryu, Si-Wook
    • Journal of the Korea Safety Management & Science
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    • v.9 no.4
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    • pp.49-56
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    • 2007
  • It is known that human factors account for 80 percent of all railway accidents. To reduce human errors must be the most efficient shortcut to railway safety. For public transportation employees like railway, the more delicate safety management should be executed in individual level. However, there are rarely efforts to improve safety performance of workers who are the subject operating the railway system. This paper develops a hierarchy model to evaluate the human safety performance in railway industry. To evaluate the model, AHP (Analytic Hierarchy Process) methodology is adopted. The hierarchy model is composed of four levels which are objective, two criteria, specific factors of criteria, and rating scales. In addition, since employees for evaluation are over 10, the pairwise comparisons for rating scales are carried out by the absolute measurement. We explore the applicability of AHP to the performance evaluation of railway safety workers by an example and also investigate the changes of alternatives that are railway employees according to the changes of human characteristic which is one of criteria.

The Study of Risk Matrix Development for Urban Metro EMU (도시철도차량 적용을 위한 위험도 매트릭스 개발에 관한 연구)

  • Kim, Young-Sang
    • Journal of the Korean Society of Safety
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    • v.26 no.6
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    • pp.111-117
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    • 2011
  • Risk-based railway safety management has been mandatory in Korea as by relevant laws and regulations enacted since the Railway Safety Act 2004. In particular, the Railway Vehicle Safety Guidance came into effect on Jan 1, 2008 specifies the details of methodology for hazard analysis, risk assessment and safety verification and validation. Fundamentals for success of the risk-based safety management are systematic hazard identification and risk assessment by use of reasonable risk assessment criteria, but the principle of risk-based safety management has not been applied in an effective way to introduction and maintenance of railway vehicle systems because definite risk assessment criteria have not been set down for each railway system or railway network. The purpose of this study is to suggest a risk matrix development principle for risk assessment of domestic urban metro vehicles by analyses of relevant rules and railway operating environment of Korea.

A Study on Railway Safety Index for the Safety Management (철도안전관리를 위한 안전지표 선정에 관한 연구)

  • Kwak, Sang-Log;Wang, Jong-Bae;Cho, Yun-Ok;Park, Chan-Woo
    • Proceedings of the KSR Conference
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    • pp.1053-1058
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    • 2006
  • Many railway safety measures reduce railway fatalities into half for last 10 years. But more improvement in railway safety is required to meet the social need after railway fire accident in Daegue. Reasonable railway safety index is needed to find out the weak point and efficiencies of various safety measures. But we still have only 2 kinds of safety index which are set for 10 years ago. In order to derive guideline for setting up safety index, we analyze accident cause, previous studies for railway safety improvement in Korea, and other countries safety plan. As a result some proposal for safety index was driven in this study.

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