See, when someone asks you to write a paper on a topic like this, they don't expect you to be able to write it off the top of your head. If you knew it all already, why would you be in school? :smile: They expect you to learn useful stuff by doing this report.
If you don't know who in your community is responsible for, say, bus schedules or other transportation issues, part of preparing your paper is FINDING OUT and asking them about the problem you want to address. Be prepared with some data before you see this person, or ask him/her where to find it out-- who uses the bus lines, where do they go the most, how do you think this relates to a community health issue? How do decisions get made about this in the community-- is it a town meeting thing, is it solely up to the head of the transit authority, what? if you had authority to change it, why would you want to, and what would the change look like?
This is why community nursing is so cool-- it gets you involved in, like, the community health.