Rural road sections

My workbench was getting overloaded with all my ongoing projects and I needed to make space for some new things. The quickest to finish is a bunch of road sections that has been laying around for months and months now. It's four straights sections, some bends and some intersections. 
They are made from hard board and acryllic sealant as the base. To create the wheel marks I just ran a stick through the sealant.

Today's effort has been to add sand and paint a first layer of brown, they will need atleast one more layer of paint before i highlight them and add flock. To finalise them I will just seal them with varnish through the air brush.