Using Woodland Scenics products to work out N Scale road widths, I started to draw the roads, roundabout and slabs (for toilet block, station parking etc)
Next using the Woodland Scenics road tape and ‘smooth it’ I make the roads.
Two parts smooth it to one part water. More smooth it if making rises or level crossings.
I have found it to be alright to use, but I got lots of air bubble resulting in little holes everywhere in my road, not 100% smooth even with sanding.
I have been using 1mm balsa wood on extra sections I have missed with wood filler to fill joins and that seems to work very well.
Probably won't recommend this next time, but worth trying.
Cutting 1mm or finer balsa wood would be perfect for roads without the mess and easy to fix being timber.