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무선통신기반 열차제어시스템에서의 운전시격 계산과 간격제어 성능개선을 위한 열차간격제어 알고리즘

Headway Calculation and Train Control Algorithm for Performance Improvement in Radio based Train Control System

  • 오세찬 (한국철도기술연구원 광역도시철도시스템 연구실) ;
  • 김경희 (한국철도기술연구원 광역도시철도시스템 연구실) ;
  • 이성훈 (포스코 ICT R&D 센터) ;
  • 김자영 (포스코 ICT R&D 센터) ;
  • 전종화 (포스코 ICT R&D 센터)
  • 투고 : 2015.09.21
  • 심사 : 2015.10.08
  • 발행 : 2015.10.31

초록

무선통신기반 열차제어시스템은 관할영역 내에 운행 중인 열차의 위치정보를 지상시스템에서 실시간으로 수신하고 다시 각각의 열차의 차상시스템에 새로운 이동권한을 제공함으로써 안전한 간격제어를 수행한다. 열차제어시스템의 성능은 최소 운전시격으로 평가되며 그것은 열차제어시스템의 간격제어 성능뿐만 아니라 운영특성 그리고 열차의 특성을 반영하여 계산된다. 본 논문은 무선통신기반 열차제어시스템의 운전시격 계산과 운전시격을 개선하기 위한 새로운 열차간격제어 알고리즘을 제안한다. 제안된 운전시격 계산 방법은 열차제어시스템 간격제어 성능을 반영한 안전마진 추정을 통해 각각 역간 운전시격과 역 운전시격을 정의한다. 또한 제안된 열차간격제어 개선 알고리즘은 간격제어 개선을 위해 거리와 속도를 포함하는 이동권한을 새롭게 정의하며 선행열차에서 필연적으로 발생하는 제동거리를 이용함으로써 열차의 운전시격을 향상시킬 수 있다. 제안된 운전시격 계산방법을 한국형 무선통신기반 열차제어시스템의 간격제어 성능을 대상으로 시뮬레이션을 수행하며 개선된 열차간격제어 알고리즘과 비교분석 한다. 시뮬레이션 결과에 따르면 제안된 운전시격 계산방법은 향후 무선통신기반 열차제어시스템의 성능 지표로 활용이 가능하며 제안된 간격제어 알고리즘은 기존의 무선통신기반 열차제어시스템의 역 운전시격과 역간 운전시격을 개선할 수 있음을 확인한다.

Radio based train control system performs train safe interval control by receiving in realtime the position information of trains driving in the control area of the wayside system and providing onboard system in each train with updated movement authority. The performance of the train control system is evaluated to calculate the minimum operation headway, which reflects the operation characteristics and the characteristics of the train as well as the interval control performance of the train control system. In this paper, we propose the operation headway calculation for radio based train control system and a new train interval control algorithm to improve the operation headway. The proposed headway calculation defines line headway and station headway by the estimation the safety margin distance reflecting the performance of the train control system. Furthermore the proposed Enhanced Train Interval Control(ETIC) algorithm defines a new movement authority including both distance and speed, and improves the train operation headway by using braking distance occurring inevitably in the preceding train. The proposed operation headway calculation is simulated with Korean Radio-based Train Control System(KRTCS) and the simulated result is compared to improved train interval control algorithm. According to the simulated results, the proposed operation headway calculation can be used as performance indicator for radio based train control system, and the improved train control algorithm can improve the line and station headway of the conventional radio based train control system.

키워드

참고문헌

  1. Zhu, Li, et al. "Train-ground communication in CBTC based on 802.11 b: Design and performance research." Communications and Mobile Computing, 2009. CMC'09. WRI International Conference on. Vol. 2. IEEE, 2009. DOI: http://dx.doi.org/10.1109/CMC.2009.93
  2. IEEE 1474.1 IEEE Standard for Communication-Based Train Control(CBTC) Performance and Functional Requirements.
  3. Kaixia, Dong, Liu Xiaojuan, and Zhu Yunyan. "Simulation Study of ATP Subsystem of CBTC System in Urban Mass Transit [J]." Railway Signalling & Communication 4 (2011): 004.
  4. Sehchan Oh, et al. "Design of ATP functions and communication interface specifications for Korean Radio-based Train Control System." Control, Automation and Systems (ICCAS), 2013 13th International Conference on. IEEE, 2013. DOI: http://dx.doi.org/10.1109/iccas.2013.6704161
  5. Oh, Sehchan, et al. "ATP functional allocation for Korean radio based train control system." Control, Automation and Systems (ICCAS), 2012 12th International Conference on. IEEE, 2012.
  6. Oh, Sehchan, Yongki Yoon, and Jonghyen Baek. "Development of Wireless Communication based Train Separation Control Simulator." Conference of Korean Society for Railway. 2011.
  7. Kim, Ickhee, et al. "A Study on Railroad Track Capacity According to Transit Railway Demand." Journal of the Korean Operations Research and Management Science Society 38.3 (2013): 23-35. DOI: http://dx.doi.org/10.7737/JKORMS.2013.38.3.023
  8. Baek, Jong-Hyen, and Chang-Goo Lee. "The Study on Train Separation Control Technology using Balise for Conventional Line Speed Up." Journal of the Korea Academia-Industrial cooperation Society 10.2 (2009): 256-263. DOI: http://dx.doi.org/10.5762/KAIS.2009.10.2.256
  9. Yk Kim, Yh Lee, and Ck Ryu. "Headway comparison between ATS and ERTMS/ETCS systems." ICCAS 2003 (2003): 1333-1337.
  10. Jw Lee, Ej Joung, Jg Hwang, Cb Jung, "A Study on Minimum Headway Calculation", Spring Conference of Korean Society for Railway. 2000.
  11. Parkinson, Tom, and Ian Fisher. Rail transit capacity. Vol. 13. Transportation Research Board, 1996.
  12. Chen, Rong-wu, and Jin Guo. "Development of the new CBTC system simulation and performance analysis." 12th International Conference on Computer System Design and Operation in Railways and Other Transit Systems. 2010.
  13. HE, Chengcai, and Tao YANG. "Comparison of Headways in Moving Block andFallback Modes for CBTC System." Journal of Southwest Jiaotong University 3 (2012): 014.
  14. CHEN, Rongwu, Changqian ZHU, and Li LIU. "Calculation and optimization of train headway in CBTC system." Journal of Southwest Jiaotong University 4 (2011): 010.
  15. Dongsheng, Liang, and Xu Yi. "Analysis of Train Minimum Headway and Realization of Simulation Algorithm under CBTC Train Control Mode [J]." Modern Urban Transit 4 (2011): 002.