I used 1/8" wood sheets (4x4) and once I had what I wanted what I wanted, I painted it in 2 coats. The first was the Rust-Oleum black textured spray paint to get the road surface. Then once that was dry, I spray painted over it with the black color I wanted for the road (dull black).
Then I used the same board painted gray for the sidewalks to fit in with my station/crossing guard .
I used the same type of setup in my city but using 1/8" MDF with the roads painted to match my superstreets track and gray for the sidewalks.
