What is the difference between a monocentric and a polycentric city, and which models illustrate each?

What is the difference between a monocentric and a polycentric city, and which models illustrate each?

• A. A monocentric city has a single central business district with most activity concentrated there.
• B. A monocentric city contains multiple centers around the periphery.
• C. A monocentric city has no central business district.
• D. A monocentric city is defined by a port-centered core.

Answer: (A)

The key idea is how urban activity is organized around the city’s center. A monocentric city centers most activity in a single central business district (CBD), with land use and employment concentration strongest at that core and tapering off as you move outward. This pattern is classically shown by the concentric zone model, where rings around one core represent different land uses but all revolve around that single center. That makes the statement describing a single CBD with most activity concentrated there the best description of a monocentric city. In contrast, a polycentric city would have several centers of activity or subcenters outside the main CBD, a pattern captured by the Harris-Ullman multiple-nuclei model. The other options either imply multiple centers, no CBD, or a port-centered core, which do not fit the monocentric idea. So, a monocentric city is characterized by one dominant center, as illustrated by the concentric zone model, while polycentric patterns are illustrated by the multiple-nuclei model.

The key idea is how urban activity is organized around the city’s center. A monocentric city centers most activity in a single central business district (CBD), with land use and employment concentration strongest at that core and tapering off as you move outward. This pattern is classically shown by the concentric zone model, where rings around one core represent different land uses but all revolve around that single center.

That makes the statement describing a single CBD with most activity concentrated there the best description of a monocentric city. In contrast, a polycentric city would have several centers of activity or subcenters outside the main CBD, a pattern captured by the Harris-Ullman multiple-nuclei model. The other options either imply multiple centers, no CBD, or a port-centered core, which do not fit the monocentric idea.

So, a monocentric city is characterized by one dominant center, as illustrated by the concentric zone model, while polycentric patterns are illustrated by the multiple-nuclei model.