What material should flags used for day signals be made from?

Flags used for day signals are essential for ensuring visibility and safety in maintenance of way operations. The regulations specify that these flags can be made from cloth, metal, or other suitable materials because each of these options can achieve the necessary bright visibility needed to attract attention in daylight conditions.

Using cloth ensures flexibility and ease of handling, while metal can provide durability and rigidity, allowing the flags to remain visible even in adverse weather conditions. Other suitable materials can include alternatives that also meet brightness and durability requirements. This variety allows for adaptability based on the specific needs and contexts in which the flags are used.

A focus solely on synthetic materials, solid fabric, or merely bright coloration excludes the benefits offered by the variety of materials that may be appropriate for flag construction, restricting the options available for creating effective signaling tools.