City planning 1,820 Regional planning 1,207 Planning 1,057 Congresses 295 Land use 274 Curriculum planning 242 Educational planning 216 Designs and plans 169 Economic conditions 156 Cities and towns 152 Economic policy 145 Transportation 135 Education 119 Bibliography 118 Architecture 114 Mathematical models 114 Management 113 Urban renewal 113 Strategic planning 109 Business planning 94 History 90 Housing 82 Periodicals 79 Case studies 78 Architecture, Domestic 77 Data processing 76 Law and legislation 75 City planning and redevelopment law 71 Curricula 65 Health planning 63