I am looking for some pointers on drawing my city map. I am working on a complementary map for a novel that I am working on because I believe it will add a good level of depth. I have tried a few things with drawing the city streets, but I can't seem to make it look as good as I would like. I think part of it getting the measurements correct for different sizes of streets (or avenues, boulevards, etc.). I'd like it to be in a sort of late-1800's style because that fits with the theme of the novel, but I imagine that there are some techniques that are more modern that would be useful. Any help or suggestions of where to look would be great.

NB: Map suggestions are useful, but I've got quite a few saved that I like. I'm looking more specifically for drawing techniques. I'm also not all that savvy with most of the computer programs (mostly from a lack of motivation and time).