alt Hacker NewsNice philosophising, but it's vehicles. Primarily cars, but not only.
By far the most common and the loudest source of noise, especially in cities, are vehicles, again, primarily cars.
During the pandemic it became painfully obvious how loud cars are. Every time a city closes down streets, the same thing can be noticed. It can be shocking to some, but even the most crowded places on the planet are quite silent when vehicles aren't around. There are some minor exceptions like concerts (duh!) or other huge public gatherings where the noise is the point.
It's going to take a really long time to heal this wound.
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> By far the most common and the loudest source of noise, especially in cities, are vehicles, again, primarily cars.
Hugely depends on the city. Where I live it's the cargo trains and airliners. Congestion is too severe for anyone to make significant noise, unless they have modified/dysfunctional exhausts or particularly large engines.
Even quite a distance away I hear constant noise from a highway. It's a bit surprising too just how loud and for how long you can hear the cars and motorcycles they mod to be even louder, even through walls and windows.
Nice philosophising, but it's vehicles. Primarily cars, but not only.
Around here cars are more common, but quiet enough that I rarely notice. Trucks, motorcycles, quads, trains, and boats are all significantly noisier.