Hi. Just getting started. There isn't much mapped for my rural area in the U.S. so I have a lot of work ahead of me. :D

I have read a little about drawing in municipal parks, but it's still not clear to me. Can someone explain how an "area" is drawn? Do I just draw a "way" and close it off? How is it tagged, then?

Second question: The Census' TIGER files are used to create roads (ways) for my area. Most of these roads are tagged as "residential" even when they are rural roads. Is it appropriate to update the tags on these to a more fitting tag (such as tertiary or tracks where appropriate)? Is there anything else I need to do to indicate that I have updated these TIGER files?

Thanks!