GTS implements the Australian Standard AS4970-2009, the Protection of Trees on Development Sites. The Tree Protection Zone (TPZ) and the Structural Root Zone (SRZ) is the calculation used to protect trees on development sites, this protection is for both the rootszone and the crown of the tree. GTS arborists can install the barriers required to implement the TPZ and SRZ to isolate the tree and protect it from construction impacts. We consider this area to be essential for tree health and stability. GTS has a track record of never loosing a tree while maintaining a TPZ.
