building roads for n scale layout

I am building an n scale layout and am wondering how to model asphalt for my roads and crossings. What do you guys use and how do you do it?

I use 0.020" styrene, painted and weathered.

I also use re-railer sections for the crossings.

The re-railers aren’t terribly realistic, but come in very handy when railing a large steam engine with a 12-wheel tender!

I used fine sandpaper (320) and airbrushed it a couple of times. It gives a nice structure. I’m very pleased with the result.

Thanks for the advice. Just wanted to let you know that I was on YouTube some time ago and viewed your layout. This is where I got the idea of building my n layout on a door. Thanks again.

Thanks. I was thinking of using a puddy but now am leaning towards foam or sandpaper after everyone’s advice.