Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Practical Evaluation Technique for Deterioration of Railroad Lines using Track Geometry

철도노선 선형의 실용적 노후도 평가기법 개발

  • Kim, Hyun Ki (High-speed Railroad Systems Research Center, Korea Railroad Research Institute) ;
  • Kim, Sung Jin (REX ENC) ;
  • Choi, Chan Yong (High-speed Railroad Systems Research Center, Korea Railroad Research Institute) ;
  • Hwang, Soo Beom (High-speed Railroad Systems Research Center, Korea Railroad Research Institute)
  • Received : 2013.10.07
  • Accepted : 2014.02.18
  • Published : 2014.04.30
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Abstract

In this study, a practical evaluation technique to detect the deterioration of railroad lines by means of train performance and track geometry measures is suggested. A train that has a specific performance and is running the straight line can make minimum travel time (ideal time). But the actual travel time will be increased by the track geometry and various speed limitations. By comparing these travel times, we can easily define the degree of line deterioration. This method does not require complex vehicle performance measures and/or specifications that exceed those of typical Train Performance Simulations (TPS). For this reason, ease of use is ensured and the results are similar to those obtained by running a TPS for practical evaluations.

본 연구에서는 철도노선을 주행하는 열차의 성능과 노선의 선형정보를 이용하여 실용적인 철도노선의 선형 노후도 평가기법을 제안하였다. 일정한 성능의 열차가 직선 선로를 주행하는 시간을 기준으로 노선의 종단 및 평면 선형에 의하여 속도제한이 이루어지는 현황을 반영하여 늘어나는 주행시간을 비교하여, 시간의 함수로 정규화하여 노선의 선형에 따른 노후도 평가기법을 개발하였다. 본 기법은 통상적으로 차량운전성능시뮬레이션(Train Performance Simulation; TPS)을 이용하는 기법에 비하여 복잡한 차량성능 및 사양이 요구되지 않아 사용의 용이성이 확보되면서도 TPS 결과와 유사한 결과를 얻어 실용성 있는 평가가 가능할 것으로 판단된다.

Keywords

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