Use and loading
If the site includes both a parking area and a garden path, measure each use separately so the quote can show their individual scope.
Why it matters for your tarmac surfacing: Describe the normal and occasional use of the area so the construction is assessed for its intended duty. For tarmac surfacing, it can affect excavation, compaction, course depths, drainage, edge support and the handover programme.
Useful photograph: the complete usable area with typical parking or movement space visible.