What do white lines, flags, or stakes indicate in a work area?

White lines, flags, or stakes in a work area indicate dig safe pre-mark lines. These markings are crucial for identifying the boundaries of an area where excavation is planned, helping to prevent unintentional damage to underground utilities such as water, gas, or electrical lines. This precaution is especially important for ensuring the safety of workers and the public, as well as preventing costly service disruptions. The use of white markings follows regulations designed to alert excavators to conduct proper utility location procedures before digging begins, thus fostering a safer work environment.