Didn't find answer to my question on annex 14.
Trust me, it's there.
You need to understand what the various protection areas ans surfaces are for. From what I can recall without the books to hand, there should be no unnecessary obstacle within the strip. Aeroplanes at holding points are temporary obstacles and are treated differently. More importantly, the book tells you exactly what the minimum distance from centreline to holding point is for different categories of approach operations.