I believe that the law in Ohio, maybe just Cincinnati, states that drivers must yield to pedestrians waiting to cross at a crosswalk. I personally would not step into the street until I knew that it was completely safe due to the fact that most drivers do not yield.Ooh I hate this one more than all the others.
I used to live near where a bike path crossed a road. The bike path had a stop sign and no button or anything for them to press that could signal cars to stop. It was entirely up to bikes and joggers to wait until it was clear to cross. You'd still often have cars stop and waive these people through. I get being generous, but this definitely seemed unsafe to me.