The Definition of Industrial Land Use:
      • This refers to the industrial and industrial parks categories of SEMCOG's land use coverages.
      • Industrial includes a wide array of uses from light manufacturing and industrial parks to heavy manufacturing plants. Identification of light industries - those focused on design, assembly, finishing, and packaging of products - can often be based on the type of building, parking, and shipping arrangements. Light industrial areas may be, but are not necessarily, directly in contact with urban areas; many are now found at airports or in relatively open country. Heavy industries use raw materials such as iron ore, lumber, or coal. Included are steel mills, pulp or lumber mills, oil refineries, chemical plants and brick making plants. Stockpoles of raw materials, large power sources, and waste product disposal areas are usually visible, along with transportation facilities capable of handling heavy materials.
      • Industrial parks refer to areas set aside within the community and specifically provided with the necessary community facilities such as roads, water and sewer lines, power to support industrial growth and development.



What do you see?
      • Slide1: Most of the industrial land use before 1985 was located along I-696 and I-275 that go through northern and western suburban Detroit.
      • Slide2: Most of the new industrial land use between 1985 and 1995 migrated further out a little bit along I-96 and I-75.



What do you see?
      • Although most of the new industrial areas between 1985 and 1995 migrated further out a little bit along I-96 and I-75, they were covered by the sewer zone of 1995. 
      • There were some light industrial areas that were disregarded because they were scattered throughout a large area. When calculating density of the acreage of industrial land use per grid, GIS considered these scattered light industrial land use in the category of zero acreage per grid, thus not showing them in the above map.