I live in the city. Dogs barking is the most intrusive, loud sound I hear by far. I can hear my neighbor's dogs even with the door and windows closed and noise-cancelling headphones on. And it goes on all day, because the dogs don't go anywhere. Cars passing, construction even, are all temporary. When you have a neighbor with barking dogs, or a dog park nearby, it's every fucking day and it's absolute torture. No other sound even begins to compare.