1964 M.A. in economics & sociology, University of Cologne
 
 1964-1967
Research assistant, Institute of Comparative Social Research, University of Cologne
 
 1967
Ph D in economics & sociology, University of Cologne

 1968-1973
Researcher (Since 1970 Head of economic & sociological research) Netherlands Economic Institute, Rotterdam
 
 1970
Guest lecturer, School of Architecture and Urban Planning, University of California, Los Angeles

 1973-2005
Professor of Spatial Planning, Faculty of Architecture, Delft University of Technology

 1984-2004
Lecturing, teaching and research in Latin America: Nicaragua (Managua); Brazil (Sao Paulo, also coordinator inter-university cooperation University of Sao Paulo - Delft University of Technology); Argentina (Buenos Aires & Cordoba); Uruguay (Colonia del Sacramento); Mexico (Mexico City &Queretaro); RIDEAL (Santiago de Chili)
 
 1990-1997
Chairman Scientific Council, International Scheldt Faculty, East-Flanders/Zeeland

 1990
Honorary doctorate in urbanism, spatial planning & development, University of Gent
 
 1992-1994
Consultant European Commission, DG XVI: Studies conservation of European cities

 1993-1994
Consultant European Commission, DG XVI: Ex-ante evaluation Regional Development Plan Flevoland
 
 1996-2000
Visiting professor of Urban Management, University of Gent (in charge of course at Catholic University of Leuven)
 
 1997
Consultant Cork Corporation: Ex-post evaluation European Urban Pilot Project on Revitalization of historic center

 1997-2000
Partner Assembling, a European network of monitoring centers for transport, European Commission, DG TREN

 1997-2003
Director, Design Studio ‘Network City’, Faculty of Architecture, Delft University of Technology in cooperation with Dutch Ministry of Housing, Spatial Planning and the Environment

 2000
Consultant Dublin Corporation: Ex-post evaluation European Urban Pilot Project on the Historic heart of Dublin

 2000-2002
Member prospective research group DATAR, Paris: energy, transport & ICT, France 2020
 
 2002-2007
Visiting professor of Cross-Border & Interregional Cooperation, Pluridisciplinary Faculty of Bayonne/Anglet/Biarritz University of Pau and the Pays de l’Adour

 2004
Chairman evaluation commission DATAR & Caisse des Dépôts et Consignations, Paris : Mission Opérationnelle Transfrontalière (MOT)

 2004-2011
Academic hospitality' at the Chair of Spatial Planning, Faculty of Architecture, Delft University of Technology

 2005-2013
Participant Regio Futures Programme, Polish Ministry of Regional Development
(project leader:Antoni Kuklinski)

 2008-2009
Cooperation with OTB Research Institute Delft University of Technology on ‘New style mixed scanning’, commissioned by The Dutch Ministry of Housing, Spatial Planning and the Environment