1. 1) Sato, Y., Miura, S., "Deformation of Railway Track and Running Safety of Train Earthquake," RTRI Pre-Report, No.82-45, 1982.3 (in Japanese).
2. 2) Sato, Y., Kobayashi, S., Nagata, M., "Stability of Track with Concrete Ties and Crushed Stone Ballast in Earthquake," RTRI Report, No.675, 1969.4 (in Japanese).
3. 3) Sato, Y., Takatani, H., Suzuki, S., "Study on Buckling Stabikity of SHINKANSEN Track in Earthquake," RTRI Report, No.1334, 1987.1 (in Japanese).
4. 4) Railway Technical Research Institute, Design Standard for Railway Stractures -Seismic Design, August 1999 (in Japanese).
5. 5) Sato, Y., Miyai, T., "Lateral ballast Resistance Force and the Performance Various Types of Ballasted Track," RTRI Report, No.76-150, 1976.11 (in Japanese).