My work backs onto the BNSF main thru Seattle, it is very busy, the trains vibrate our 100 year old building. There's some real low frequencies coming out of the locomotives and they weigh in well over 200 tons apiece, always a good idea to stay clear.
For the past few weeks I've been riding our "Heavy Rail" train into Seattle at least two days a week, it's a kick as there are stretches that it goes 79mph and I'm into downtown in 19 minutes including a station stop. The scenery is arailfan paradise and there are often interesting planes on Boeing Field as well - I saw B-29 "Doc" on Wednesday.
Typical BNSF stuff with a Canadian Pacific unit running off some horsepower hours, the station in the background is for Seattle Light Rail, formerly Union Pacific/Milwaukee Road.