Thanks again,It was really very simple.First I cut a piece of thin foamcore and glued it to a piece of masonite.I then cut the "sandwich" to the size that I wanted my town.I then spray painted the entire surface with very cheap flat gray paint from dollar general.I then took some 8.5 x11 gray foam sheetsfrom the craft store and cut the general shape of the sidewalks.After deciding that I liked the layout of the walks I cut the strips into squares and glued them down.This obviously created the streets.At this point what I had was the entire foamcore foundation and the sidewalks.I then used a white sharpie and straight edge to "paint"my crosswalks and center lines.Then I cut small rectangles at various points as storm sewers an stuck little rolls of screen in them.I took an HO scale care and wet the wheels as I rolled it around the streets to get an idea of the traffic pattern.I then used an extremely dry brush with black acrylic craft paint and rubbed it where the tires would leave their rubber and filth.I then took a picture of a street in Cincinnat that had a bunch if cracks and tar patches and basicly recreated the patterns with a black sharpie.After this I again used the dry acrylic brush to stain the sidewalks and put a pattern of dirt along the gutter making sure to well it up around the sewers.while the paint was still wet along the gutters I dropped some sawdust and scenic grass, groundfoam etc.in the streets and blew it up the streets leaving trash and weeds in the gutters and sidewalk cracks.The entire process didn't take much longer than it took to write this replysign1