TPZ Sign (Tree Protection Zone)
In the first place, a TPZ Sign or Tree Protection Zone Sign is Mandatory on some Construction sites. Indeed, These Tree Protection Signs are to be using together with Barricade Tape to bunt off a designated area of Flora.
Other Tree Protection Signs
As well as this TPZ Sign, Similar Signs exist here: Parks, reserves and environment signs
Also, We have Barricade Tape. Additionally, there is a copy of the Australian Standards for TPZ here: AS 4970 – 2009.