Thoughts on a rental near train tracks?

[Cassi Justiz]

What are thoughts on rental property near train tracks? I looked at a property today and it seems to be an overall good house with solid cashflow potential. BUT there is a train track that is really close to the property.  Has anyone found that this has a significant effect on rental prices? I didn't even notice the train tracks were that close when we were there. But then I noticed a picture of a train in one of the professional pics on the listing when I was looking back through it. 

It's a newer C+ rental neighborhood. Neighborhood rents are in the $750-$900 range for a 3/2.