This is the final draft of an article published on Transportation Research Record Journal of the Transportation Research Board, available on line: http://dx.doi.org/10.3141/1943-05 Effects of High-Speed Rail Service on Shares of Intercity Passenger Ridership in South Korea Jang-Ho Lee 1 , Justin S. Chang 2 1. Research Associate, Railway Research Division, The Korea Transport Institute #2311 Daehwa-dong, Ilsanseo-gu, Goyang, Gyeonggi, Korea, 411-701 Phone: +82-31-910-3079, Fax: +82-31-910-3225, E-mail: transwho@koti.re.kr 2. Research Associate, Railway Research Division, The Korea Transport Institute #2311 Daehwa-dong, Ilsanseo-gu, Goyang, Gyeonggi, Korea, 411-701 Phone: +82-31-910-3061, Fax: +82-31-910-3225, E-mail: justin@koti.re.kr Submission Date: 20/MAR/2006 Word Count: 3,994+250*14 = 7,494