If you want to minimize any functional or aesthetic defect using a straight crossing along a curve, fasten the ends of the track sections to be abutted to the crossing fixture first.
I am assuming you are using flextrack? If snap track/sectional, you do what you can, but with flex, anchor the ends at each side of the crossing so that they conform to the geometry of the crossing at their greatest proximity. This will minimize both odd looks and iffy function at track speed. Then, you are free, once those crossing ends are really secure and immobile, to form any curvature you need to conform with the plan at the other ends of those flex sections.
No, I think it would look fine!
If you're ahndlaying track, you could make it a cruved crossing, but I'm assuming you're not. (I don't either) It would be pretty easy to trim the staright piece of track to make it as short as possible.
Maybe you could post a photo of the area and location?
Brent
"All of the world's problems are the result of the difference between how we think and how the world works."