In addition to standard equipment, what must advanced watchmen also have?

Advanced watchmen are responsible for ensuring the safety of workers on or near railways by providing sufficient warning of approaching trains or other hazards. In addition to the standard equipment required for safety, they must carry a red flag or two fuses. The red flag serves as a visual signal to oncoming trains and vehicles that work is being conducted and that caution is required. Fuses, typically used as an audible signal, can alert approaching trains to the presence of work in progress. These tools are crucial for effective communication and safety protocols, enabling watchmen to fulfill their role in preventing accidents.

The identification of the correct answer reflects an understanding of the specific responsibilities and tools needed by advanced watchmen. Other items listed, while potentially useful in a broader safety context, do not fulfill the essential requirements defined for advanced watchmen, thus underscoring the importance of having the appropriate signaling tools to prevent incidents on the railway.