The reasons are that the trains based on this system are provided with superior acceleration/deceleration abilities even in the railway conditions of many curves and slopes, and that the trains can run at high speeds even on the railways laid on less-solid ground, because they exert a smaller load on the railways.
カーブや勾配の多い条件でも加減速能力に優れ、また線路への負担が小さいため、脆弱な地盤に敷かれた線路でも高速を出せるからである。