Abstract
For improving the running stability and comfort of Shinkansen vehicle, the efficient and rational method for grading up the suspension quality of high speed bogie is required. A practical use of the roller test rig for the development of the bogie, especially the oscillation test by the actual track irregularity, would be favorable, except for a few estrangement of running test results between on the roller test rig and on the real line. Those first step test results are described in this paper.
