Asphalt Railroad Crossings Using Black Foam Core
Here are a few shots of the best asphalt simulating material I have ever used for a grade crossing. It's all water-based, really quick, and the results are quite convincing. ** (Please pardon the primarily US railroad examples. I intend to use the same techniques on my European layout that will be my first foray into non-US modeling.)
Find some black foam core board, peel off the paper on both sides, and you have a malleable material that can be shaped, cut, sanded, press fit, and more. I use cinder ballast (or equivalent black, fine stuff) to fill in as well as real soil. White glue holds it all together.
It's easily blended into existing roadbed and track work. These applications should look convincing on my European modeling efforts. Overwash with India ink/alcohol solution and/or diluted earth and soil colors. Stain with your favorite acrylic oil, rust, and/or grime palette as desired.
If anyone has European prototype rail photos of asphalt crossings (especially SBB), I'd like to see them if you'd be willing to share. I'm assuming that the Swiss use something like asphalt or paving material for that???