Quantitative Evaluation Of Next-generation High-speed Train

To clarify the physical characteristics of next-generation high-speed train seats that people find comfortable and establish clear metrics applicable to actual seat design, we conducted sensory evaluation experiments and measurements of physical quantities (body pressure distribution, seat surface shape) during sitting on four seats under static conditions. The results revealed that factors significantly influencing comfort ratings included upper body stability, backrest angle, and seat surface firmness. Differences in comfort were further distinguished by correlations with back contact area and the amount of sinking in the thigh and ischial tuberosity regions.