为运输特种货物,到目前为止主要是采用批量生产的各种型号的四轴棚车。因此,有爆炸危险的物品的运输条件实际上与任何一种国民经济货物一样。对运用棚车分析表明,所有型号的棚车的车体结构本身不能满足运输规则中规定的特种货物的运输要求。例如,车门没有密封,因此,火星和火焰有可能飞溅到车内;车辆内部有很多梁柱、钩环、托架及其他突出部分,易使货物的外皮和包装受到损坏。某些型号的棚车地板是由金属板铺成,这是运输规则所禁止使用的,且缓冲器的容量 To transport special cargo, so far mainly used in mass production of various types of four-axis box car. Therefore, the dangerous conditions of the goods are actually transported in the same way as any kind of national economy goods. Analysis of the use of boxes shows that the body structure of all types of box car itself does not meet the transport requirements for the special cargo specified in the transport rules. For example, there is no seal on the door, so splashes of mains and flames may spill into the vehicle; there are numerous columns, shackles, brackets and other protrusions inside the vehicle, which can easily damage the skin and packaging of the cargo. Some models of box floor are made of sheet metal, which is prohibited by the shipping regulations and the capacity of the bumper