Urbanization City planning 82 Cities and towns 68 Environmental aspects 47 Urban policy 32 Growth 26 Sociology, Urban 20 History 17 Economic aspects 16 Sustainable development 14 Urban ecology 13 Globalization 11 Social aspects 11 Developing countries 9 Community development, Urban 8 Rural-urban migration 8 Social conditions 7 Urban economics 7 Urban geography 7 Urban ecology (Sociology) 6 Ecology 5 Economic conditions 5 Housing 5 Land use, Urban 5 Metropolitan areas 5 Political aspects 5 Pollution 5 Regional planning 5 City and town life 4 Community development 4