A Yard that Fronts on More than One Road. A setback requirement for the front yard of a lot that fronts on more than one road shall be the required setback for that zone classification. All other frontages shall have a setback of fifteen feet from the property line, or the edge of the public road right-of-way or private road easement, whichever is greater if the parcel is less than two acres. If the parcel is greater than two acres, the setback shall be twenty feet from the property line, or the edge of the public road right-of-way or private road easement, whichever is greater.