Urban Models
Urban Challenges
100

This model features a central CBD with concentric rings around it.

What is the Concentric Zone Model?

100

The expansion of cities into rural or undeveloped land.  

What is urban sprawl?

200

This model includes sectors that develop outward in wedges from the city center.

What is the Sector Model?

200

The process of revitalizing urban neighborhoods, often displacing low-income residents.  

What is gentrification?

300

This model includes multiple CBDs around which different activities cluster.   

What is the Multiple Nuclei Model?

300

Areas within cities with inadequate housing, infrastructure, and legal recognition.    

What are squatter settlements?

400

This model explains how land value and transportation access affect land use.

What is the Bid-Rent Theory?

400

When wealthy residents and businesses leave the city for suburbs, leading to decline.    

What is suburbanization? 

500

This model describes cities in Latin America, featuring a spine and a disamenity sector.    

What is the Latin American City Model?

500

The environmental issue caused by excessive heat in urban areas.  

What is the urban heat island effect?

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