一、形成背景及基本设计思想铁路机务非正常情况行车是指由于站场技术设备施工、设备(机车、监控装置、机车信号)故障、不良天气等情况影响,造成不能按照正常的行车办法行车的情况。处于非正常情况下,机车配备的一些安全保障装置不能正常发挥作用,行车中的一些不安全因素得不到 First, the formation of the background and the basic design ideas Railway non-normal traffic is driving due to the station technology and equipment construction, equipment (locomotives, monitoring devices, locomotive signals) failure, adverse weather conditions, resulting in traffic can not be in accordance with the normal way Happening. In abnormal circumstances, some of the locomotive equipped with safety and security devices can not function properly, some unsafe driving inaccessibility