Traffic on OH-207 at the ramps for River Road and US23 ramps has stop signs with through traffic on 207. It is already difficult to wait at the stop signs waiting for traffic on 207 to clear for a safe turn onto 207. Is your plan proposing a 4 way stop at 207 and Hospital Rd? I am not able to tell from your map.
Have you considered stop signs on 207 for the intersection with River Road and the US 23 ramps? Or traffic lights?
With increased traffic on 207, these intersections will be difficult without stop sighs or traffic lights.