Compaction and Root-clipping are the Enemy
The bulldozer operator and the construction foreman don’t always sit down and have a frank discussion about the special care needed to avoid damaging existing vegetation. What kind of personality would you expect from someone who drives a bulldozer for a living? Think about that for just a brief moment.
Now you see why it is so important to require orange protective fencing to be place at the drip line boundary of any tree you want to preserve during construction demolition. Pushing over a tree is not the only danger. Bulldozer operators like to, understandably, park their heavy equipment in a nice, shady spot when it is not in use. It only takes a few passes under a tree with a regular passenger vehicle to compact the soil to 95%. Imagine the effect of a piece of equipment that might buckle a typical driveway pavement surface!
Sturdy orange protective fencing is the visual clue needed to help the clearing contractor understand the limits for his heavy equipment. Locate it beyond the drip line of any tree you are trying to save.