When must ditch lights be displayed if equipped?

Ditch lights are auxiliary lights located on the front of a train that enhance visibility, particularly in areas where visibility can be a concern, such as near public crossings. These lights are specifically designed to provide more light to illuminate the area around the train's path, improving safety for both the train and any vehicles or pedestrians in the vicinity.

The correct answer states that ditch lights must be displayed during public crossings and with the headlight on bright. This is essential because it ensures that the area around the crossing is well-lit, which increases awareness and visibility for anyone who might be near the track when the train approaches. This practice significantly reduces the risk of accidents at crossings by making the train more visible to motorists and pedestrians.

Displaying ditch lights during public crossings while operating with the headlight on bright aligns with safety regulations and practices aimed at preventing collisions. It is crucial for train crews to adhere to this requirement to not only follow standard operating procedures but also to uphold safety measures that safeguard the traveling public.