| QR 2009 Vol.50 No.2 | 
| PAPERS  | 
| Improving the Rigidity of Railway Vehicle Carbodies Using Non-Structural Members | ||
| T.TAKIGAMI, T.TOMIOKA, K.AIDA | ||
| Reduction Method of Surge Voltage on AC Railcar's Body | ||
| S.HATSUKADE | ||
| Development of a System to Calculate Energy Consumed by Diesel Railcars | ||
| K.MURAKAMI, I.HAGA, H.NAKAMURA, S.MAEHASHI, O.YAMASHITA | ||
| Prediction Method of Tunnel Deformation Using Time-dependent Ground Deterioration Model | ||
| K.SHIMAMOTO, K.YASHIRO, Y.KOJIMA, T.ASAKURA | ||
| The Influence of Seismic Motion with Ground Irregularity on the Dynamic Behavior of Railway Vehicles | ||
| T.KAWANISHI, Y.MURONO, T.MIYAMOTO, M.SOGABE | ||
| Analytical Studies on the Load Carrying Capacity of Riveted Steel Girders Subjected to Collision Damage | ||
| M.IKEDA, K.KITA, T.NAKAYAMA, M.KIMURA, F.NAGASHIMA, S.MATSUI | ||
| Techniques to Measure Effects of Passing Trains on Dynamic Pressure Applied to Sleeper Bottoms and Dynamic Behavior of Ballast Stones | ||
| A.AIKAWA | ||
| Performance Evaluation of Reinforced Concrete Roadbed for Slab Track on Clay Subgrade | ||
| Y.MOMOYA, E.SEKINE, T.TAKAHASHI, O.MARUYAMA | ||
| Management Method for Large Wheel Loads and Lateral Forces Using Axle-box Acceleration and Track Irregularity | ||
| H.TANAKA, A.FURUKAWA | ||
| EDITORIAL NOTE | 
| Dear Readers | ||
| K.WATANABE | ||
| SUMMARIES | |
| Summaries of RTRI REPORT (in Japanese) | |
| ANNUAL INDEX | |
| Annual Index: Subjects Vol.50, No.1-No.2 (2009) | |