What technique is used to ensure a tree falls in a predetermined direction?

The technique used to ensure a tree falls in a predetermined direction is known as directional felling. This method involves planning and executing a series of cuts that guide the tree's fall. It typically involves making a notch cut on the side of the tree facing the desired direction of fall, followed by a back cut made slightly higher than the bottom of the notch.

By carefully planning and executing these cuts, an arborist can manipulate the tree's natural lean and weight to make it fall where intended, while also taking into account factors like wind direction, surrounding obstacles, and the overall condition of the tree. This strategic approach not only ensures safety during the felling process but also minimizes damage to surrounding vegetation and property. Additionally, understanding the natural characteristics of the tree and its surroundings is crucial for successful directional felling.