Public works History 42 Infrastructure (Economics) 40 City planning 16 Finance 16 Obras publicas 16 Law and legislation 14 mere ... Civil engineering 11 Government policy 11 Management 10 Politics and government 10 Cities and towns 7 Economic conditions 7 Public contracts 7 Public-private sector cooperation 7 Unemployed 7 Construction industry 6 Economic policy 6 Buildings, structures, etc 5 Maintenance and repair 5 Public service employment 5 Roads 5 Transportation 5 Administracion publica 4 Colonies 4 Contrato 4 Municipal engineering 4 Political aspects 4 Project management 4 Public administration 4 mindre ...