What is the minimum number of flags required for a flag tree?

A flag tree is a crucial component in work zone safety and is used to clearly convey important information to drivers in a construction or maintenance area. The minimum number of flags required for a flag tree is two. This ensures that there is enough visual representation to effectively manage and direct traffic around the work zone. One flag alone would not provide sufficient guidance or alertness to motorists, as it may not be easily visible from various angles or distances. Additionally, having two flags allows for a clear signaling system indicating different types of messages, enhancing safety and communication in the work area.