Amtrak's Dark Secret

Here's something you may not know, Amtrak's Northeast Corridor is, occasionally, illuminated. The occasion being overnight Maintenance of Way (MOW) activity. It can be a great opportunity for photography.
However, the right of way is lighted for track work, not cameras, so you still have to treat it as a low-light situation. To make matters even more challenging, you'll probably need a telephoto or zoom lens and since the aperture of most zooms narrows at the long end, it can be difficult to get a well lighted picture. On the positive side, because it's a work zone, trains often pass by at reduced speeds. It's a challenge worth considering. Sometimes, not always, but sometimes, you can get some very satisfying photos.