目前我国铁路大站往往分成几个信号楼分别控制各车场的道岔和信号,车站值班员依靠电话向各信号楼内的信号员了解行、调车情况及信号的状态。大站车场多、方向多、行车密度大,面对错综复杂、千变万化的现场,值班员完全凭记忆、经验和推测指挥列车运行,因而效率低且易出差错。 At present, the railway station in our country is often divided into several signal buildings to control the turnout and signals of the various car parks respectively. The station attendant relies on the telephone to know the signal staff in the signal buildings, the shunting situation and the signal status. There are many large-scale depot yards with many directions and driving density. In the face of complicated and ever-changing scenes, on-duty staff members operate entirely on the basis of memory, experience and conjecture that train operation is inefficient and error-prone.