When should the whistle signal (8) be used?

The use of whistle signal (8) is specifically designed for situations where there are workers or equipment present on or near the tracks. This signal serves as a warning to individuals who may not be aware of an approaching train, thus enhancing safety for those in close proximity to the tracks. By using the whistle in these contexts, train operators can communicate their presence effectively, allowing workers to take the necessary precautions.

In contrast, while approaching a public crossing does require attention and caution from train crews, there are specific signals designated for that scenario. The notion that a whistle should be used at all times, regardless of surroundings, does not align with safety practices, as it could lead to confusion. Additionally, the idea of using the whistle signal only at night overlooks the importance of safety throughout the day regardless of the time. Understanding the context in which whistle signal (8) is used highlights its importance as a safety communication tool when workers or equipment are present on or near the railway.