1. The KTX operation and RS Maintenance Experience KOREA RAILROAD Ph. D. Gil-Hyun, Kang

2. Korail Eurailspeed 2005 Introduction of KTX Operation Lines were successfully opened from 1 st Apr 2004 The 2 nd Phase will be completed 2010 1st phase of Kyeongbu Line: 408.5 (222.1) km 1st phase of Kyeongbu Line: 408.5 (222.1) km Total project cost : 19 billion US $ Total project cost : 19 billion US $ New line(222.1km) and two depots New line(222.1km) and two depots Upgrade Conventional lines (186.4km) Upgrade Conventional lines (186.4km) The Electrification of Honam Line: 250.6 km The Electrification of Honam Line: 250.6 km Daejeon~Mokpo line electrification Daejeon~Mokpo line electrification Geographical characteristics Geographical characteristics Minimum curve radius 7000m, 25/1000‰ Minimum curve radius 7000m, 25/1000‰ 47 tunnels on the new line(77.1km), 47 tunnels on the new line(77.1km), 86 bridges (83.4km) 86 bridges (83.4km) Complex traffic operation because of using both HSL and CL Complex traffic operation because of using both HSL and CL Dual Signal system (CL ATS/UVH, HSL ATC/VFH), Neutral section(30) Dual Signal system (CL ATS/UVH, HSL ATC/VFH), Neutral section(30)

3. Korail Eurailspeed 2005 Technical background of the KTX

4. Korail Eurailspeed 2005 KTX Operation and Maintenance Experience date’04.4.1~7.15 ’05. 4.15~ Available train set weekday33 3635~37 weekend33353839 Number of trains weekday128122132132~137 weekend128 142152 Train set: 46 sets -Seoul depot: 1,313,334m 2 -Busan Depot: 390,939m 2 Maintenance Information System: CAI, RCM Train Operation record: peak: 85%, normal: 80%

5. Korail Eurailspeed 2005 Before opening, 6 month, 12 month KTX system monitoring KRRI,SNCF-I Technical Cooperation KRRI,SNCF-I Technical Cooperation - 1 st phase: Oct. 1999~Dec. 2000 - 2 nd - Phase: Jan. 2001~Dec. 2002 - 1 st phase: Oct. 1999~Dec. 2000 - 2 nd - Phase: Jan. 2001~Dec. 2002 - 3 rd Phase: Mar. 2003~Jun. 2004 - 3 rd Phase: Mar. 2003~Jun. 2004 Test and Data acquisition (2003~2005) Test and Data acquisition (2003~2005) - conventional line upgrade : 2003 - KTX system monitoring: 2003, 2004, 2005 - conventional line upgrade : 2003 - KTX system monitoring: 2003, 2004, 2005 System monitering for the KTX safe operation System monitering for the KTX safe operation - wide range of investigations: 2004~2005 - wide range of investigations: 2004~2005 - wheel rail interface, mechanical failures, noise and vibration, pressure waves etc. - wheel rail interface, mechanical failures, noise and vibration, pressure waves etc.

6. month Year 2004Year2005 456789101112 계 12345 failure18161110598318163425 KTX operation Experience  The number of troubles are seriously improved in 2005

7. Korail Eurailspeed 2005 Threats to the KTX safe operation Swaying, Broken Anti-rolling device & ball joint Cracks on the center pivot Cracks on the center pivot: 20car traction Problem Broken Reduction Gears

8. Korail Eurailspeed 2005 Future Projects Development of the New Brand Korean High-speed Train Development of the New Brand Korean High-speed Train Speed up the main lines Speed up the main lines - High speed line: 350km/h - High speed line: 350km/h - Conventional line: upgrade over 200km/h - Conventional line: upgrade over 200km/h Preparation of 2 nd phase HS Line in 2010 Preparation of 2 nd phase HS Line in 2010 - High speed freight traction system - High speed freight traction system Order of the Honam & Cholla line New brand High speed trainset Order of the Honam & Cholla line New brand High speed trainset : Jul. 2005~Dec. 2007/2008 : Jul. 2005~Dec. 2007/2008 Cost: 400 billion Won Cost: 400 billion Won - Maximum commercial speed 300/350km/h - Maximum commercial speed 300/350km/h - Application of IT, Radio, GPS, GIS technology - Application of IT, Radio, GPS, GIS technology - Interior design & Aerodynamic head design - Interior design & Aerodynamic head design IGBT/IGCT technology for the Asynchronous traction drive IGBT/IGCT technology for the Asynchronous traction drive

9. Thank you for your attention!