Abstract
In the development of measures against railway wayside noise, vibratory characters of rail has been important factor. The characters of rail in operational railway lines are similar to those of infinite beam. On the other hand, the characters of shorter rail, which is applied at laboratory test, corresponds to those of finite beam, due to the reflection of vibrational wave at the rail end. Therefore, the reflection of vibrational wave should be reduced while evaluating the performance of the measures for operational railway lines by shorter rail. In this paper, the effect of tapering the end of shorter rail (10m) has been investigated. Additionally, the evaluation of the measures has been conducted both at laboratory and operational line.