I didn't want to spend the money to get GF9 roads for my table, so I designed this. The pattern is repeated, and when printing more than one they can be placed end to end, or side to side and will match up at the edges.
While I originally designed this at 70 mm x 210 mm, I've scaled it to 125x40 or so, and to my eye it looks just right for 28mm scale miniatures.
Please don't mind the Cipher in the photo, he's just mugging for the camera (which is to say it's the only photo of the road I have right now), and he's only about 50% painted.
When printing, be mindful about choosing a material that will not warp and will print well at .1mm layer height (ideally). Also, be wary of overextrusion that might cause the upper layers to be wider than the lower layers. this will prevent the tiles from mating together perfectly. With my new version as uploaded here, it's smoother, and can be easily sanded with a soft block to make it easier to paint, but if you're able to print at .1mm, you can just use three coats of primer and all the layer lines will disappear. It CAN be dry brushed, though your mileage may vary.