The Concentric Zone Model specifies which zones for heavy industrial properties?

• A. Residential Zones Only
• B. Commercial Zones Only
• C. Work Zones, Office Zones, and Transition Zones
• D. Industrial Zones Only

Answer: (C)

In the Concentric Zone Model, industries tend to cluster in the Zone in Transition—the ring just outside the central business district. This area mixes nonresidential uses like factories, warehouses, and light industry with deteriorating housing, because it offers proximity to the CBD and transportation, while land values and restrictions make it less suitable for housing.

The option that includes work-related zones alongside the Transition Zone best fits this pattern. It reflects that heavy industrial properties sit in zones where economic activity—manufacturing, distribution, and related office/administrative functions—occurs near the center, rather than in residential-only or purely suburban zones. Residential-only and commuter zones are not where heavy industry is typically concentrated due to noise, pollution, and land-use constraints.