Standard Hampton Inn built on the train tracks!
I recently stayed at the Hampton Inn in San Diego for work. This hotel is located exactly next to a very busy train line, with a constant stream of honking, whistle-blowing trains - day and night.
The location is good, short walk to Little Italy and good dining. Views of the harbor. There is a pool, and all of the standard amenities you would expect at a Hampton Inn....except for the trains - which is a deal breaker for me. They need to upgrade the windows or otherwise limit the noise - my experience was not acceptable. I don't understand how you can run a business for a place for people to sleep, and then have trains running directly past their windows at 2, 3, 4 a.m. and offer...ear plugs. Fail.