§ 2  INDUSTRIAL DISTRICTS.
   (A)   Industrial districts.  The determination of the boundaries of industrial districts is very important in promoting the economic welfare of the city.  Several fine new industries have located in the city during the last decade and it is highly desirable that more of them seek sites in or near the city.  The aesthetic aspects of the new plants west of the city have combined to establish a most impressive and beautiful entrance to the city.  It is more encouraging to note that industry itself has found out that the location and construction of architecturally attractive buildings and superior development of sites contribute to the profitable operation of the industries.  Many years ago a famous landscape architect coined the phrase, "What would be fair must first be fit".  Modern industrial design certainly exemplifies this truism and the new plants are splendid examples which support it.
   (B)   "I-1" Open Industrial District.  This district, which is shown by an appropriate technique on the maps, includes substantially the same area as the "I" Industrial District established by the present ordinance.  The only changes are minor and were the result of the reconnaissance referred to in § l.  Within this district, which includes the Norfolk and Western Railroad Yards, industries which use both buildings and areas around the buildings for manufacturing processes and storage of materials, raw materials, or products may locate without restriction.  New industries would have to conform to reasonable performance standards, which will be set forth in detail in the report on the zoning ordinance, but otherwise there would be a minimum of restrictions.  Residential or other non-industrial uses would not be permitted in this district, however business would be permitted.
   (C)   "I-2" Enclosed Industrial District.  This district includes the frontage along State Highway 28 on the south side from Prairie Avenue to the western limit of the planning area; and on the north side from the lng-Rich Plant to the western limit.  It is shown appropriately on the maps.  On the north the district extends to the property line of Norfolk and Western Railroad and on the south the district is 1000 feet in depth, measured from the center line of Highway 28.  The provisions of the zoning ordinance will be designed to perpetuate the application of the principles of industrial development which has produced such a fine effect by the existing industries.  These provisions will encourage the location of similar plants and will protect the existing industries from inferior or unpleasing installations which might thoughtlessly come about unless the specifications were adhered to.  No residential, commercial, or other land uses would be permitted in this district.
   (D)   "I-3" Reserved Industrial District.  This district embraces most of the area included in the M-l, M-2, M-3, and M-4 Districts in the existing zoning ordinance.  It is the consultant's opinion that the objectives of the present regulations can be met acceptably with only one reserved district.  Industry would be permitted throughout this area.  Enclosed industry is permitted in this district and there would be substantially complete freedom to pick desirable sites.  It is recognized that such a large area should not be reserved for industry exclusively.  Therefore, there are no restrictions prohibiting its use for residential development if there is demand for residential use prior to industrial demands.  However, it would be unwise to permit commercial development either as special exceptions or without restriction.  If there is a demand for commercial use, the sites should be established by amendments to the zoning ordinance or by utilization of shopping center plan procedures.