英国铁路为防止速度超过15km/h时侧门打开摔下旅客,在70年代制造的IC125列MkⅢ型客车上安装了风动插销,并在车站上进行了展出。英国铁路每年大约有20名旅客从列车上摔下而死。英国铁路认为,这是由于锁闩没有伸出、锁没有关闭所致,且大多数事故是旅客自己打开车门造成的。风动插销是由车轮防滑装置的速度传感器控制的。所有MkⅡ和MkⅢ In order to prevent the side doors from falling off when the speed exceeded 15km / h, the British Rail installed pneumatic latches on the IC125-Mk III-type passenger cars manufactured in the 1970s and exhibited at the station. Every year, about 20 travelers from the British Railways fall from the train and die. The British Rail believes this is due to the fact that the latch did not extend, the lock did not close, and most of the accidents were caused by the passenger opening the door himself. Pneumatic latches are controlled by the wheel speed sensor’s speed sensor. All MkII and MkIII