Streets how do you make em?

[nachoman]

The last time I modeled a paved road, I spread a thin layer of plaster, then painted it an asphalt color. I would lay some kind of "curbing" (usually strips of basswood) to serve as a both an edge and a screed to help keep the surface uniform and the edges straight. If I was to do it again, I would spread joint compound over the top of my plaster road, let it dry, and then smooth it with a damp sponge. When I was a kid, I actually built a "paving machine" modeled after one I saw being used in real life on an adjacent street. I loaded the thing with plaster and pushed it along, and it would lay a relatively uniform sheet of plater pavement.