What activity is NOT allowed in the Heavy Industrial Zone?

In a Heavy Industrial Zone, the primary focus is on industrial activities that typically involve heavy manufacturing, processing, or similar uses. These zones are specifically designed to accommodate industries that may have significant impacts on the environment or surrounding areas, including noise, traffic, and potentially hazardous materials.

Residential uses are not permitted in this zone because they conflict with the industrial nature of the area. Residential areas require a different set of zoning regulations that prioritize aspects like safety, noise control, and a pleasant living environment, which would likely be undermined by the industrial activities in a Heavy Industrial Zone. Thus, allowing residential uses would not align with the purpose of the zoning designation.

Junk yards and accessory buildings, on the other hand, are typically considered compatible within a Heavy Industrial Zone, as they relate directly to industrial activities and can function effectively in that type of environment. Therefore, it is accurate to identify that residential uses are the activity that is not allowed in a Heavy Industrial Zone.