Define the terms form and structure of cities as used in urban planning

Form and structure of cities are two key concepts in urban planning.

1. City Form: This refers to the physical layout or design of a city. It includes the shape and size of buildings, the arrangement of public spaces, and the network of streets, among other things. City form can be influenced by a variety of factors, including historical development, geographical constraints, and planning policies. For example, a city might have a compact form with high-density buildings and narrow streets if it developed in a period or place where space was limited. On the other hand, a city might have a sprawling form with low-density buildings and wide streets if it developed in a period or place where land was abundant and transportation was dominated by the automobile.

2. City Structure: This refers to the spatial arrangement of different land uses and activities within a city. It includes the distribution of residential, commercial, industrial, and public areas, as well as the connections between them. City structure can be influenced by a variety of factors, including economic conditions, social trends, and planning policies. For example, a city might have a concentric structure with a central business district surrounded by residential neighborhoods if it developed in a period or place where people relied on walking or public transit for transportation. On the other hand, a city might have a polycentric structure with multiple business districts and dispersed residential neighborhoods if it developed in a period or place where people relied on private cars for transportation.