I've been mucking about with CC3/DD3 and am eagerly awaiting CD3, but I have a major problem with maintaining realistic scale across the board.

I was wondering if anyone had any tips or tricks for maintaining a realistic scale when making overland, city and floorplan maps. ie realistic distance, houses that are a realistic size in relation to road width and so on.

I realise this is probably just a conceptual problem in my own head, but if anyone has any suggestions or has over come this problem themselves, I'd love to hear about it!