Railway signal is the abbreviation of railway signal system or equipment. The technical equipment on the railway to ensure the safety of shunting operation, improve the passing capacity of stations and sections and the ability of train disintegration, and improve the working conditions of operators. according to

Different application places can be divided into station signal control system, marshalling station shunting control system, interval signal control system, traffic command control system and train operation control system. Generally, it includes station interlocking, interval blocking, locomotive signal, overspeed protection, dispatching supervision, centralized dispatching, yard control and crossing signal.

Extended data:

Railway signal equipment: signal machine.

1. Pass-through signal: The function of pass-through signal is to protect the block section on the automatic block line or the section on the non-automatic block line, and indicate whether the train can enter the protected block section or section. The traffic signal is generally located at the boundary point of block segmentation or the interval between blocks.

2. Exit signal: The departure signal indicates whether the train can leave from the station to the section. Station main line and arrival-departure line should be equipped with exit signals. In automatic block and semi-automatic block sections, the opening of the outbound signal is the certificate to occupy the section.

Baidu Encyclopedia-Railway Signal

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