What is the correct sequence for moving a switch?

The appropriate sequence for moving a switch typically involves signaling first to ensure that the movement of the switch can be performed safely and to alert any approaching trains of the change in track alignment. By signaling before moving the switch, operators can prevent potential accidents or miscommunications.

Following the initial signal, the switch can then be safely thrown to the desired position. After the switch has been positioned correctly, a second signal is usually made to confirm the switch has been set and to inform train crews or other operators of the new track alignment. This sequence enhances operational safety by ensuring that all parties are informed and prepared for the switch change.

In this context, starting with a signal, then moving the switch, and concluding with another signal creates a clear and safe procedure for managing switch movements within the railway system.