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Multiple Nuclei Model

• Created by Chauncy Harris and Edward Ullman in 1945
• Theory formed on the idea that people have greater movement due to increased car ownership
• Similar industries with common land use and financial requirements are established near eachother
• Manila, Phillipenes

Sector Model

• Created by economist Homer Hoyt in 1939
  
• Allows for outward progression of growth
• Zones spread out along transport routes such as highways and railroads
• Can be applied to Calgary, Canada

Concentric Zone Model

• Created by sociologist Ernest Burgess in 1925
• The idea that the centre of town is retail then out from that manufacturing then residential
• As the city grows, the different areas expand outwards
• Based on city of Chicago