City planning Land use, Urban Environmental aspects 20 Urban policy 16 Community development, Urban 8 History 8 Urban renewal 8 more ... Public spaces 6 Urban ecology (Biology) 6 Urban ecology (Sociology) 6 Urbanization 6 Community organization 5 Human ecology 5 Social conditions 5 Vacant lands 5 Housing 4 Race relations 4 Social classes 4 Urban agriculture 4 Zoning law 4 Cities and towns 3 Community development 3 Economic aspects 3 Environmental policy 3 Government policy 3 Green movement 3 Housing policy 3 Management 3 Real estate investment 3 Sustainable development 3 less ...