What colors are displayed on the switch lamp of a spring switch and what do they indicate?

The switch lamp for a spring switch is designed to provide clear signals indicating the position of the switch. When the switch lamp displays green, it signifies that the switch is in the normal position, meaning the track is set for the mainline. Conversely, when the lamp shows red, it indicates that the switch is in the reverse position, which routes the train onto a diverging track or siding.

This color-coding system is critical for train operators and maintenance personnel who need to quickly ascertain the state of a switch to help ensure safe operations. Understanding this visual indication helps reduce the risk of accidents and improve overall efficiency in train movements. By being familiar with these signals, personnel can react appropriately depending on the configuration of the switch, enhancing their situational awareness and decision-making.