onemore, Your Bathurst overfly would be caught by
This rule will apply not only to aircraft that are inbound to the aerodrome, but also to aircraft that are overflying the aerodrome or simply transiting through this airspace, if the aerodrome is depicted in the aeronautical charts and the aircraft is flying at a height that could put it in conflict with aerodrome traffic.
eg. an inbound to Bathurst for the 3500' circuit at 500 fpm and 120 kts would cross your 6500' overfly altitude at 6 minutes and 12 nm out.
But if you are following the`inbound or departure routes to Bankstown - you wouldn't be overflying
True, but you're still in the 'vicinity' and could be a problem to someone who's inbound to or outbound from (say) Hoxton Park (whilst it still exists).
I'll be generous here and state that,
I think, that the intent, is to assist in 'alerted see and avoid', but the words that we've seen so far are too much of a catchall and don't take into account the issue of closely spaced aerodromes (with possibly different frequencies).