wow. I am a person who LOVES trains and specifically look for places next to the tracks! I am astonished that more people don't take your place because of its location! I have found at Airbnb the best thing to do is just be honest about the fact that you are close to /near a train track, the times of day it comes through, & the noise level ( also is there a warning whistle/horn as well or crossing signal bells. I think some people will look elsewhere, but plenty of people will enjoy staying there for the nostalgia of it. Good luck!!!!Best regards, LKWiggs