Gen Okajima - Central Japan Railway Company - Key safety issues in Japan’s high speed rail network


Published on

Gen Okajima, General Manager, Central Japan Railway Company delivered this presentation at the Rail Safety Conference 2014. Rail Safety 2014 brought together the key national decision-makers to deliver new ideas and develop innovative ways to leverage technology for safer outcomes.

For more information, please visit

Published in: News & Politics
  • Be the first to comment

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Gen Okajima - Central Japan Railway Company - Key safety issues in Japan’s high speed rail network

  1. 1. © Gen Okajima Central Japan Railway Co. Sydney The Japanese Experience: 50 years of safe high speed rail operation Rail Safety 2014 26/03/2014
  2. 2. © Tokaido Shinkansen •  The World’s FIRST High-Speed Rail - In operation since 1964 funded by World Bank (*French TGV since 1981, German ICE since 1991) •  Even now, the Leading High Speed Rail in the World Series 0 (1964) 1st Generation Series N700 (2007) 5th Generation
  3. 3. © Key Features of the Tokaido Shinkansen ZERO passenger injuries or fatalities from train accidents - Safety
  4. 4. © Key Features of the Tokaido Shinkansen - Punctuality minutes / train *1 *2 *1 : Including delays due to uncontrollable causes, such as natural disasters *2 : Standard for train delays; JR Central : “delay” = >1 minute, Europe : “delay” = >15 minutes
  5. 5. © 6:00 7:00 8:00 9:00 ・・・ Tokyo Shinagawa Nagoya Shin-Osaka Shin-Yokohama Kyoto Train Schedule Diagrams as of March 2012 *1:Excluding extra service - Mass Transport Key Features of the Tokaido Shinkansen 323 trains/day*1 386,000 3 min. intvlat peak time passengers / day
  6. 6. © Safety in the Shinkansen Technology (Hardware) Core Concepts Management/ Workforce (Software)
  7. 7. © Safety in the Shinkansen Technology (Hardware) Core Concepts Management/ Workforce (Software)
  8. 8. © 研究施設概要(現在)  Test Track Test Facilities Building C   Real Scale Test Structure New technology- Komaki Research Center ! Opened July 2002 Site area: Approx. 73ha Use area: Approx. 20ha Employees Research & Development Division: Approx. 120 Planning & Project Division: Approx. 30 Ground area The Facilities Building A  Track & Structural Dynamics Simulator
  9. 9. © Inner fastening brake disk (Series N700) ・ Reduces the extent of disk deformation caused by friction heat when brakes are operated and also obtains higher frictional force ・ Shortened stopping distance in overhead-line failure (caused by earthquakes, etc.) by improving deceleration ■Employing the central fastening brake disc to shorten braking distance Central fastening brake disc (Series N700A) Improved Safety long linings short Large deformation Small deformation wheel wheel axle axle
  10. 10. © Improved Safety ■New decision support tool for measuring flood erosion Vibration tester (automated) Vibration tester (manual) Weight Automated impact vibration device Change in natural vibration No damage Damage Vibration: large Shakes quickly Vibration: small Shakes slowly Vibration tester Vibration tester
  11. 11. © Improved Safety ■Large-scale renovation program
  12. 12. © Safety in the Shinkansen Technology (Hardware) Core Concepts Management/ Workforce (Software)
  13. 13. ©3 - The use of dedicated tracks exclusively for high- speed passenger rail service - A fail-safe, reliable, proven Automatic Train Control (ATC) Concept of Crash Avoidance on a dedicated track is characterized by two key cornerstones: Crash Avoidance Concept
  14. 14. © Shinkansen - Complete separation from: •  Freight traffic (pulled by heavy locomotives with lower braking performance) •  Lower speed passenger traffic (poor running performance) •  Road traffic Road Traffic Zero possibility of catastrophic collision with freight, lower speed passenger and road traffic Crash Avoidance Concept- dedicated tracks
  15. 15. © Brake Pattern Speed (Running Curve) Preceding Train (ii) Information regarding Location of Preceding Train (iii) On-board ATC System calculates Brake Pattern ATC Ground Facility (iv) When Speed > Brake Pattern Applying Brake Command (i) Detecting the Preceding Train ATC Ground Facility - Eliminates possibility of collision with the preceding train - 100% safety record in Japan for over 50 years Crash Avoidance Concept- ATC System
  16. 16. © Crash Avoidance Concept- lighter load, lower cost Less sturdy structure with light body t Axle load * Source : ”World High Speed Rolling Stock,” UIC Website, May 2009  5 10 15 1 2 3 17 16 11.2
  17. 17. © 軌道中心間隔4.3m 軌道中心間隔4.5mR=4,750 R=6,250 TGV Size of lanes  Small Large Shinkansen 63㎡ 100㎡ Tunnel Cross Section Source: Japanese Government, Ministry of Land, Infrastructure, Transportation and Tourism Smaller Infrastructure • Smaller tunnels • Less land acquisition 4.3m 4.5m TGV-POS LGV Est <320km/h Crash Avoidance Concept- cost effective
  18. 18. © N700 TGV-POS ICE-3 JRC simulation based on public data assuming 50km level tracks between stations the simulation used data from. TGV: “TGV POS PREPARES to enter service,” Railway Gazette International, Dec. 2006, P784-785   ICE: “ ICE Multiple Unit for the European High-Speed Rail Services of German Rail (DB AG) and Netherlands Railways (NS),” Technical Information, Siemens AG Energy Consumption per Seat (Wh/km/seat) 26 57 55 Crash Avoidance Concept- Eco Friendly
  19. 19. © Crash Avoidance concept- reliability Mixed tracks : Dedicated tracks : !!
  20. 20. © Reliability/Safety- how can we achieve it? Technology (Hardware) Core concepts Management / Workforce (Software)
  21. 21. © Software - how can we develop it? Training Kaizen Culture moulding
  22. 22. © Training Kaizen Culture moulding Software - how can we develop it?
  23. 23. © 《Skill development》 We regularly reassess the knowledge and skills of train crews to maintain safe operations. Simulator for Shinkansen Drivers Simulator for Shinkansen Conductors Software - training
  24. 24. © Catenary wire recovery Evacuation of passengers General training sessions simulating actual accidents Repair of derailed rolling stock.
  25. 25. © Employee General Training Centre
  26. 26. © Training: employee education Supervisor Driver Supervisors All front staff Dialogue / Mutual respect
  27. 27. © Learning System (CJR e-Learning system)   -Started in 1996 -30 courses   -8,000 employees / yr Training: Self Development
  28. 28. © Training Kaizen Culture moulding Software - how can we develop it?
  29. 29. © Software - Kaizen Identify the problem Analyse the problem Apply way to improve process Check the results Standar dise Kaizen for -safety -reliability -better service -efficiency -satisfying intellectual curiosity
  30. 30. © Software - Kaizen in action Background: • Mechanical door requires constant maintenance including washing mechanical parts • Washing oil costs tens of millions of yen Before: • Replacement cycle of the washing oil varied by staff • Staff changed the washing oil when the colour looked ugly Analysis: • Dirty oil still has ability to clean the mechanism. • Impurities are needed to be removed Critical issue for reliable, safe operation if the door does not open/ close as operated
  31. 31. © Software - Kaizen in action New method: • Reuse the washing oil • Introduce foreign matter separator After: • Cost saved • Washing quality is more standardised More reliable, safe rail services with less costs Cock
  32. 32. © Training Kaizen Culture moulding Software - how can we develop it?
  33. 33. © Software - culture moulding • The processes, values and assumptions developed by a group over time, that is then passed on to new members of the group • How is culture moulded? 1.  Primary: Management behaviour; resources and awards; promotions 2.  Secondary: Organisational structures; design; ceremonies, rituals and stories; formal mission and value statements Schein 2004.
  34. 34. © Software - Culture Moulding (2ndary) 3 Safety requires absolute confirmation and thorough communication. 4 Safety requires cooperation as one beyond assigned tasks. 5 When in doubt, take the action deemed safest and ensure that nothing is missed. 1 Safety is the number one priority of our transportation service. 2 Safety starts with strict adherence to rules and fulfillment of duties, and rests on continual self improvement. Keep sending the safety-1st message everywhere
  35. 35. © 《sleeping management》 Encouraging catnap at their break time in dedicated areas Data input Output: advise from medical doctor • Work at better condition • Draw attention to health management (safety culture) Software - Culture Moulding (2ndary)
  36. 36. © Primary means make safety culture sustainable Software - Culture Moulding (Primary) Management which • Respond properly against critical safety incidents • Allocate human/capital resources for making secondary means • Find and reward staff who pay attention to safety issues
  37. 37. © Conclusion Safety Core concepts Technology (Hardware) Manage ment / Workforce (Software)
  38. 38. © Thank you for your attention. Please  feel  free  to  contact  us  at:     Central  Japan  Railway  Company-­‐-­‐Sydney   Suite  501,  Level  5   20  Hunter  Street,  Sydney  2000   E-­‐mail:    info@jr-­‐central-­‐   Phone:    (02)  9221  6922