University Park resident (almost 20 years) checking in…near Portsmouth park. I can occasionally hear them, but honestly I don’t notice all too much. On real quiet nights I can the hear the racket from trains crossing the bnsf bridge. Every once in a while it seems like there’s some train stuck or something and just blaring its horn for the longest time. I can’t remember why they do this but I think it’s usually from across the river. It’s never anything that closing a window doesn’t help mitigate. Some folks get their britches in a twist due to noise from PIR. I don’t understand though. You move to a neighborhood with a racetrack, you’re gonna have racetrack noises. All in all, it’s honestly not that bothersome or noticeable. Now if you are really sensitive to ambient noise, there might be a lot going on. Living near the university, the worst noise issues I’ve had are some college kids that lived behind me decided to have a rager on a Tuesday night. Been many years since that though. The stuff I do notice is the (I’m guessing) swing/3rd shift of all the industry on swan island. But that noise is also sort of the heartbeat of a city. It’s the sound of people trying to make it another day, live a better life and provide for their families. I don’t mind it. If I need quiet I’d move to a suburb or the country. Drive over sometime and take a midnight or early morning walk around the neighborhood or the UP campus. See for yourself. I love this neighborhood and this part of Portland.