GROUP: industrial (ib)
DEFINITION: Industrial buildings, including enclosed & connected sealed or compacted infrastructure (parking, courtyards & outbuildings) & interior vegetation. May include structures that are not in use currently but that have >50% of roof intact (if less than this, see disturbed & debris).

1. Object
   1. generic factory (not brick, coal/electric, or chemical)
   2. brick factory = brick factory, including brickyard and associated buildings.
   3. coal-fired electricity generation =
   4. chemical factory =
2. Modifier 1 (pollution output)
   1. generic factory (not brick, coal/electric, or chemical)
      1. no smokestacks = no significant release of gas, aerosol, or particulates to environment as part of factory operation.
      2. with smokestacks = significant release of gas, aerosol, or particulates to environment as part of factory operation. Usually smokestacks indicate this, but in some cases, release may be through other means.
3. Modifier 2 (sealed vs. permeable)
   1. generic factory (not brick, coal/electric, or chemical)
      1. no effluent = no liquid effluent release to environment as part of factory operation.
      2. with effluent = significant quantity of liquid effluent release to environment as part of factory operation. Usually effluent release is to local surface water, but in some cases, release may be through other means.
4. Scale (of facility management)
   1. small < 30m
   2. large > 30m

1. generic factory (not brick, coal/electric, or chemical)
   1. no smokestacks
      1. no effluent
         1. small < 30m = ib01
         2. large > 30m = ib02
      2. with effluent
         1. small < 30m = ib03
         2. large > 30m = ib04
   2. with smokestacks
      1. no effluent
         1. small < 30m = ib05
         2. large > 30m = ib06
      2. with effluent
         1. small < 30m = ib07
         2. large > 30m = ib08
2. brick factory
   1. small < 30m = ib09
   2. large > 30m = ib10
3. coal-fired electricity generation
   1. small < 30m = ib11
   2. large > 30m = ib12
4. chemical factory
   1. small < 30m = ib13
   2. large > 30m = ib14

1. IF TYPE with greater area is very similar or otherwise unclear:
   1. Choose with smokestacks over no smokestacks.
   2. Choose with effluent over no effluent.
2. IF it is unclear whether the size of a parking lot that adjoins or encircles other builtup/building features is large enough to map and classify as a separate feature (area is similar to 30m, 1000m2), then map and classify it as a separate os08 parking lot feature.

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