• 제목/요약/키워드: Rail transportation

검색결과 561건 처리시간 0.021초

철도위험물수송에 관한 위험도 정량화방안 및 경감대책 연구 (A Study on Quantitative Risk Assessment Method and Risk Reduction Measures for Rail Hazardous Material Transportation)

  • 이상곤;조원철;이태식
    • 한국재난관리표준학회지
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    • 제1권3호
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    • pp.69-76
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    • 2008
  • 본 연구는 철도를 통한 위험물 운송시 발생할 수 있는 위험을 정량화하는 방법을 개발하고, 이를 통한 경감대책을 제시한다. 본 논문에서는 철도위험물 수송에 관한 위험도를 평가하기 위한 방법으로 정량적 위험도 평가 방법을 채택하였으며, 과거 사고이력과 더불어 위험이 높을 것으로 판단되는 익산시를 대상으로 했다. 노출인원에 대한 평균개인의 위험을 거리에 따른 위험도로 표현한 결과 원자력 기준 미만으로 안전한 것으로 판단되고, 또한 사회적 위험도로 표현한 결과, 위험경감대책 적용요구 구간(ALARP)범위 내에 포함되어 이에 대한 경감대책을 제시하였다. 위험 경감대책으로 차량설계, 운영, 피해확대 방지, 발생빈도 감소를 위한 탈선사고 방지, 경로변경 방안 등을 제시하였으며 경감대책의 적용으로 높은 수준의 안전성을 확보할 수 있을 것으로 기대된다.

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GNSS Center of Excellence for Safety Critical Applications, Simulation, Test & Certifications - GAUSS

  • Evers, H.
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.2
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    • pp.153-155
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    • 2006
  • A major advantage of the area in and around Braunschweig is its concentration of major research institutes and small to large enterprises dealing with different modes of transportation. For many years, aviation has been a particular focus. The research institutes have aircraft and helicopters equipped especially for research projects, as well as other laboratory equipment, allowing simulation and testing of air traffic application both virtually and on real aircraft. In addition, with the Luftfahrtbundesamt (equivalent organization to FAA) and the Bundesstelle $f{\"{u}}r$ Flugunfalluntersuchung (equivalent to NTSB) both located at the Research Airport, it enables direct contact with two key air-traffic safety authorities. The institutes of DLR and the Technical University of Braunschweig are very active in rail transportation applications. Cooperation with the market leader in rail automation - Siemens Rail Automation, also located in Braunschweig - and with other companies in the Braunschweig region means that safety-critical road applications and mobility research is available due to the activities of a number of institutes. Cooperation with Volkswagen (VW) and other companies in the region ensure access to the market leaders' know-how in this sector. Current European activities within framework of the Galileo project offer particularly good opportunities for the Research Airport to leverage its expertise and position itself internationally as a specialist in safety-critical transport applications - the centre is an initiative of Niedersachsen and the Ministry of Economic Affairs, Labour and Transport Location and navigation plays a central role in all modes of transport - air, road and rail. The market is being revolutionized by the increasing integration of GNSS. The realization of the Galileo system will provide additional opportunities for the Research Airport: Galileo as a civil operated system offers service guarantees especially in the area of safety-critical applications in transportation. Notably standards, processes and authorizations related to the certification of safety-critical applications in the areas of air, road and rail transportation are still to be determined. GAUSS, located at the Research Airport Braunschweig, as an European centre of excellence for simulation, testing and certification of safety-critical applications can offer its expertise to validate the services guaranteed by the Galileo concessionaire.

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Stress Analysis in the Elastic-Plastic Analysis of Railway Wheels

  • Ashofteh, Roya Sadat;Mohammadnia, Ali
    • International Journal of Railway
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    • 제7권1호
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    • pp.1-7
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    • 2014
  • Fatigue and wear in wheels is often due to the forces and loading. These certainly have fundamental effects on reducing the wheel life and increasing the costs related to repairing and maintenance. Modeling and stress analysis of a wheel sample existing in the Iranian fleet have been performed in its contact with U33 and UIC60 rails. The results have been reviewed and analyzed in elastic and elastic-plastic phase and under static (railcar weight) and quasi static loads. Moreover, effects of wheel diameter, axle load, wheel material, rail type are analyzed.

철도연계터미널에서의 컨테이너 집배송전략의 개발과 평가 (Development and Evaluation of Pick-Up and Delivery Strategy of Container Truck at Rail-Road Transshipment Terminal)

  • 정승주
    • 대한교통학회지
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    • 제23권2호
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    • pp.51-60
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    • 2005
  • 철도-공로 복합화물운송은 최초출발지에서 최종목적지까지 화물을 수송함에 있어 철도와 화물자동차를 연계하는 운송시스템이다. 철도-공로 복합화물운송에서 공로(화물자동차)의 역할은 집배송 기능으로 전체 운송과정의 경쟁력에 중요한 영향을 미친다. 본 연구는 철도-공로 복합화물운송의 대표적 화물인 컨테이너를 대상으로 집배송 부분의 효율성을 제고시키기 위한 운송전략을 개발하고 평가하는 데 목적이 있다. 이를 위해 컨테이너트럭의 운송거리 최소화를 지향하는 전략과 고객에서의 대기시간 최소화를 주목적으로 하는 전략 등 2개의 집배송 개선전략이 개발되었다. 개발된 전략들은 파리수도권의 실제 집배송망에 적용되어 그 효율성이 비교, 평가되었다. 기존 집배송방식과의 시뮬레이션 비교결과 제안된 전략들이 다양한 성과지표에서 상당히 효율적임이 입증되었다.