Currently the only control you have over roads is a choice between "normal amount of roads" and "many roads". Eventually it will become possible to draw roads more or less freely, but it's not going to happen soon. How do your roadmaps loo? I mean how detailed are they? There was a request to be able to specify where do roads come from to the city I consider to add something like "northward roads=on/off, southward=on/off etc..."