What is the purpose of a yellow light for utility assistant conductors?

The purpose of a yellow light for utility assistant conductors is primarily to give signals in low visibility situations, such as at night. Yellow lights serve as a visual cue to ensure that signals can be seen and understood clearly, especially when natural light is insufficient. This is critical for maintaining safety and communication on the tracks, helping to inform conductors and other crew members about important operational statuses and instructions.

In scenarios where visibility is compromised — such as during nighttime operations or inclement weather — the use of a yellow light ensures that conductors can still effectively communicate important information without relying solely on verbal cues or other forms of signaling that may be less effective in those conditions.

Recognizing the importance of visual signals like the yellow light helps ensure that all personnel are aligned in their actions and can operate safely and efficiently under various conditions.