The signal (path for cattle required) has the following characteristics:

• Aa circular shape with a surface in blue color with the image of a cow in black color
• Ba circular shape of the surface is of a white color and the image of a cow in blue color
• Ca circle with a surface in blue color the image of a cow in white color and a symbol in black color
• Da triangular shape whose surface is of a white color with the image of a cow in black color