As YPJT said, ERSA says the beacon flashes at 6 second intervals, not 9. Potentially confusing.
I was going to observe that if infrastructure investment is a good way to stimulate the economy, I can nominate a thousand or so aerodromes that are crying out for maintenance and upgrade. But then I reflected on the fact that a bit of fog at Sydney still creates chaos across almost the entirety of the airways, and that if Australia lacks the smarts and capacity to upgrade a capital city airport to first world standards it’s no wonder that so many aerodromes are in the condition they are.