C. Harris and E. Ullman Megan Kairiss

Chauncy Harris 1914-2003 Born in Utah Received a B.A. from Brigham Young University in 1933 Graduated as Valedictorian Rhodes Scholar Oxford University First rhodes scholar at BYU received second BA and Masters at Oxford

Edward Ullman 1912-1976 University of Chicago, University of Washington Economist for the United States Maritime Commission Research professor at Sapienza University of Rome

Multiple Nuclei Theory Developed in the 1945’s Harris and Ullman made the argument that the “city's downtown core” was losing its importance in relation to the rest of the city A cities structure is made up of more than one node, or center in which the cities people and activities revolve around. Developed in 1945 explains the changing growth pattern of urban spaces based on the assumption that growth occurred independently around several major foci (focal nodes), many of which are far away from the central business district and only marginally connected to it the automobile became increasingly important because it allowed greater movement for residents to the suburbs

Let’s Compare! In contrast to the Concentric and Zone Models, both of which involve a single center, this theory argues that multiple centers of urban activity and sociology arise as a result of ethnic, cultural, business, educational, and other influences.

Multiple Nuclei Theory Example: Consider the greater New Haven area. The center of New Haven is dominated by a large university, while Bridgeport is built around a port, and North Haven is a focus of light industry. Other nuclei exist within the region, centered around shopping, recreation, and ethnic communities.

Multiple Nuclei Theory

Multiple Nuclei Theory: Dallas

APHG Concept Chapter 13: Urban Patterns Where are people distributed within urban areas? Remember, you can compare this model to the Concentric and Zone models of urban structure

Bibliography "Multiple Nuclei Model - Chauncy Dennison Harris." Chauncy Dennison Harris. N.p., n.d. Web. 23 Sept. 2013. "Urban Geography Models." About.com Geography. N.p., n.d. Web. 23 Sept. 2013.