What type of protection is utilized for the mechanical department?

Blue flag protection is specifically designed to safeguard workers in the mechanical department during maintenance and repair activities on rolling stock and equipment. This system involves displaying blue flags or lights to signal that work is being done and that the area is a "no movement zone" for trains and equipment. It serves as an essential safety measure to prevent accidents by ensuring that train crews are fully aware of the maintenance work taking place, thus prohibiting any unauthorized movements in the work area. The use of blue flags indicates to crews that personnel are present, making it crucial for their safety.