Abstract
This paper presents experiments to evaluate riding comfort of high speed trains using the motion simulator. The use of motion simulator has various merits for evaluation rather than the case of actual trains such as the reproducibility of the cabin vibration and setting of many conditions which are difficult for real vehicles. In the experiment, the riding condition acting combination of acceleration by centrifugal force and lateral oscillation are simulated for sitting, standing and walking condition of passengers in curving situation. Experimental plan and questionnaire are carefully considered and it was found that the experiment using simulator is effective for evaluation of comfort.