When more than one driveway approach is required to serve a parcel of property, a traffic island shall separate the driveway approaches. The width of the traffic island at the property line shall be a minimum of 20 feet. Where the grade at the property line is the same as the sidewalk, a six inch raised curb shall be constructed at the back of the traffic island along the property line, and on private property. The raised curb shall be constructed so as to end 24 inches from the intersection of the driveway approach with the property line. (Ord. 8590)