Where uncertainty exists with respect to the boundaries of any of the zoning districts as shown on the Zoning Map, the following rules shall apply:
(a) Parallel district boundaries. Where district boundaries appear to be approximately parallel to the center lines or street lines of streets or the center lines or right-of-way lines of highways, such district boundaries shall be construed as parallel thereto and at such distance therefore as indicated on the Zoning Map. If no distance is given, such dimensions shall be determined by the use of the scale shown on the Zoning Map.
(b) Boundaries of zoning districts. Boundaries of zoning districts are intended to follow property lines. Where zoning district boundaries are shown as being parallel to a right-of-way, those lots that have frontage on such right-of-way are intended to be within such a zoning district.
(c) Lot lines, railroad lines, and waterways. Where district boundaries approximately follow lot lines, such lot lines shall be construed as a boundary of a zoning district. Where the boundary of a district follows a railroad line, such boundary shall be deemed to be located in the middle of the main tracks of said railroad line. Where the boundary of a district follows (or parallels) a waterway, such boundary shall be deemed to be located in the middle (or parallel to) the centerline of said waterway.
(d) Interpretation by Planning and Zoning Commission. Any questions of interpretation of the Zoning Map which cannot otherwise be resolved, shall be referred to the Planning and Zoning Commission for a determination.