铁路运输业以低能耗、大运量、高速度的优势成为中长距离运输的主力。可是铁路一般不能实现门到门的运输,使货主感到不便。为此国外铁路创造了驮背运输的新形式,即在货车上装载汽车。铁路为了完成这一任务,就需要降低货车自身的高度,即需使用本文所介绍的低底平板车。 Railway transport industry with low energy consumption, large capacity, high speed advantages become the main force in long-distance transport. However, the general railway can not achieve door-to-door transport, so that the owner feel inconvenience. As a result, foreign railroads have created a new form of transport for backpacks, loading cars on trucks. In order to accomplish this task, the railway needs to lower the height of the truck itself, that is, to use the low-floor truck described in this article.