Some trees grow with structural defects that can cause splitting or trunk failure if left untreated. Extra long branches that grow horizontally
or downward  may have heavy overextended limbs that can break. Cabling and bracing is a tree support that can stabilize the structure, helping to strengthen the tree to help with corrective growth. This is also helpful in environments with ice and snow where the weight of these elements can weaken the limbs, causing harm to both properties and people