What is the minimum distance required between the flagman and two yellow lights?

The minimum distance required between the flagman and two yellow lights is 500 feet or more. This guideline is crucial for maintaining safety and visibility on the tracks. The flagman serves as a visual signal to train operators, indicating potential hazards ahead. Having a distance of at least 500 feet ensures that the flagman is far enough away from the yellow lights, allowing for adequate reaction time and a clearer line of sight for both the flagman and the train operators. This distance helps prevent confusion regarding the flags and signals, ensuring that safety protocols are adhered to and minimizing the risk of accidents.