I am a Teen of divorced parents. I live in Winston- salem my dad lives in greensboro, My mom refuses to meet my dad half way.

You are a child.  You should not be involved in making decisions regarding your own custody.  Your parents are right, they should not be talking to you about it, they should be talking to each other about it, and if they cannot agree they need to file something in court to have the judge make the  decision for them.  I know this is stressful for you, but as a teenager, you have other things that you should be worrying about.  Don't borrow trouble.  Let your parents do their jobs as parents and handle this matter.  Also even though you should not be dealing with this, to answer your question, I will tell you that whether they have to meet halfway is spelled out in the custody and visitation order, if they have one.