Vibration Reduction Countermeasures of Railway Concrete Viaduct Tsutomu Watanabe, Koudai Matsuoka, Munemasa Tokunaga and Masamichi Sogabe MATEC Web of Conferences, 24 (2015) 08003 Published online: 19 October 2015 DOI: 10.1051/matecconf/20152408003