What is the implication of a YELLOW signal with respect to the next steps?

The implication of a YELLOW signal is to proceed with caution, as it serves as a warning that the next signal may require stopping. A YELLOW signal is an important indicator for operators that caution is needed, prompting them to prepare for the possibility of encountering a stop signal ahead. This reflects standard operating procedures that prioritize safety and ensure that the operator is alert to changes in conditions or directions that may require immediate action.

In the context of train operations, understanding that a YELLOW signal signifies the need for careful observation and readiness to respond appropriately is crucial to maintaining the flow of traffic and preventing accidents. As such, the operator must slow down and be prepared to stop if the subsequent signal indicates so, keeping operational safety paramount.