What scan method is useful for scanning larger buildings or restricted terrain?

The horizontal scan method is particularly effective for scanning larger buildings or navigating restricted terrain due to its coverage and ability to assess wide areas at a specific eye level. This method allows the individual to effectively track potential threats or targets across a broad expanse without the need for frequent repositioning.

In environments such as large buildings, walls, or obstacles, the horizontal scan can help maintain situational awareness by ensuring that all areas within sight are being evaluated simultaneously. Additionally, this method can involve scanning rooms or open areas from a distance, enabling a quicker assessment of situations and more informed decision-making under pressure.

Other scanning methods may not provide the same broad coverage or might require more time or movement to effectively survey an area. This makes the horizontal scan particularly advantageous when dealing with complex environments or structures where visual information needs to be gathered efficiently.