Where Is The Peace And Serenity???

Here on the Mornington Peninsula its USUALLY peaceful and quite, except for early Sunday morning when the fire station across the road, has its weekly ritual of letting the sirens go off, and leave the fire engines motors running for long periods of time.
Please don't get me wrong, as we NEED the fire engines and sirens to be working properly, which I am very grateful for.
My question is: Why do they still need to do this weekly ritual at the moment, when their going out in the fire engines many times of the day and night, and why do they also need to do it, late on weeknights????
I'm sure they have very important and valid reasons for doing this.
I must say the poor firies don't get much of a life outside of the CFA during Summer, or is it only because we are having such a bad fire season this year?
I haven't been living here long enough to know if this always happens during the Summer months?
My heart and gratitude goes out to these firies, who are always there when needed, and they put their own lives on the line to save others, as we have seen with the recent horrific bushfire's in Victoria. Thank you so much to all the firies.

But to another question:
Why do I feel like I'm constantly living on a construction block????
After waiting months for the pool to be finally finished, and thank goodness it is!
And then having the constant "Tourists" through January, we now have a new unit being built just across the driveway! So I am now constantly hearing either the sounds of the builders with their noisy tools, music (& foul language), starting very early in the morning, as well as, at the moment (anyway), the concrete truck!!!!!!
I feel very sorry for the poor wildlife, (Koalas, Possums, etc), how they really must hate the constant noise, and do they really understand, what all this noise is all for? I'd love to know what goes through their minds in regards to us human beings????

Oooohhh....the....peace....and....serenity????
I hope it comes back very soon.
(Sorry if I'm rambling on)