Running Safety Analysis of Railway Vehicle depending on Rail Inclination Change on Actual Track of Subway Line No.3 in Seoul

3호선 실제선로 조건에서의 레일경좌 변화에 따른 철도차량 주행안전성 해석

  • Kim, Tae Geon (Dept. of Rolling Stock System Engineering, Seoul National University of Science & Technology) ;
  • Lee, Hi Sung (Dept. of Rolling Stock System Engineering, Seoul National University of Science & Technology)
  • 김태건 (서울과학기술대학교 철도차량시스템공학과) ;
  • 이희성 (서울과학기술대학교 철도차량시스템공학과)
  • Received : 2014.11.01
  • Accepted : 2016.06.13
  • Published : 2016.06.30


It is very hard to analyze the train derailment safety quantitatively at the curved section because of the diversified affect parameters including the complex interaction between wheel and rail, the train conditions such as the shape of wheel, suspension system, the track conditions such as the radius of curve, cant, transition curve, and the operation conditions, etc. Two major factors related to the running safety of railway vehicle are classified as the railway vehicle and the track condition. In this study, when the railway vehicle passing through curves of actual track condition of subway line NO.3 in seoul ($Yeonsinnae{\leftrightarrow}Gupabal$), the effect that has influence on running safety depending on rail inclination. The analysis result of 1/40 rail inclination condition is more favorable on running safety than other rail inclination conditions because derailment coefficient and wheel unloading ratio are the lowest.



Supported by : 서울과학기술대학교


  1. Ministry of Land, Infrastructure and Transport, "Technical Specifications for Urban Railway Vehicles", 2014.
  2. VI grade, "VI-Rail 12.0. Documentation", 2008.
  3. UIC code 510-2(E), "Trailing stock : Wheel and Wheelsets. Conditions Concerning the use of Wheels of Various Diameters", 2004.
  4. Seoulmetro, "Track List of Line No.3", 2011.
  5. Seoulmetro, "Track Irregularity Data of Line No.3", 2013.
  6. Seoulmetro, "Train Driving Rules for Line No.3", 2011.
  7. UIC code 518 OR 3rd Edition, "Testing and Approval of Railway Vehicles from the Point of View of Their Dynamic Behaviour-Safety-Trackfatigue-Ridequality", 2005.