| QR 2012 Vol.53 No.1 | 
| PAPERS   | 
| Train Control System for Secondary Lines Using Radio Communications in Specific Area | ||
| S.HIRAGURI, M.FUKUDA,H.FUJITA, Y.ONO | ||
| Development of a Lightning Surge Calculation Model for Level Crossing Signalling Equipment | ||
| H.ARAI, H.FUJITA, Y.ONO | ||
| Development of a Simulation Software to Calculate Fluctuations in Strength of Radio Frequency Noise Emitted from Electric Railway Systems into the Trackside Environment | ||
| K.KAWASAKI | ||
| Method to Estimate Equivalent Natural Period with Micro-tremor Measurements | ||
| M.TOKUNAGA, M.SOGABE, F.UEHAN, H.TANIMURA, Y.MURONO, K.ONO | ||
| Advanced Active Control of Contact Force between Pantograph and Catenary for High-Speed Trains | ||
| Y.YAMASHITA, M.IKEDA | ||
| Development of a Lateral Damper to Improve the Running Safety of Railway Vehicles during an Earthquake | ||
| K.IIDA, M.SUZUKI, T.MIYAMOTO, Y.NISHIYAMA, D.NAKAJIMA, Y.KAJITANI | ||
| Performance of Linear Motor Type Rail Brake Using Roller Rig Test Bench | ||
| Y.SAKAMOTO, T.KASHIWAGI, H.HASEGAWA, T.SASAKAWA, Y.KARINO | ||
| Development of the On-board Maintenance Management System for Ground Coils of Maglev by Using RFID Technology | ||
| M.TANAKA, N.TAKAHASHI, M.SUZUKI, R.IKEDA, S.NAGASAKA | ||
| Examination of Vehicle Motion Characteristics of a Maglev Train Set Using a Reduced-scale Model Experiment Apparatus | ||
| H.HOSHINO, E.SUZUKI, T.YONEZU, K.WATANABE | ||
| EDITORIAL NOTE | 
| Dear Readers, | ||
|  | T.MIYAUCHI | |
| SUMMARIES | |
| Summaries of RTRI REPORT (in Japanese) | |
| ANNUAL INDEX | |
| Annual Index: Subjects Vol.53, No.1 (2012) | |