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Ron Janssen specializes in decision support for environmental and spatial management. His main topics of research are decision analysis, spatial analysis/evaluation and spatial planning and design. Most research activities focus on the effective use of information in environmental decision-making and the development of spatial decision support systems. A current topic of interest is the use of geodesign to support interactive land use planning workshops. Examples are the design of a land use plan for the lower Zambezi valley, design of regional adaptation strategies for the Frisian peat meadow areas, locating tidal devices around the Mull of Kintyre, and land use planning in the Provinces of Friesland, Drenthe and Utrecht as well as in Dinkel catchment in the west of the Netherlands.

Ron Janssen also specializes in the use of multicriteria analysis. Together with his colleague Marjan van Herwijnen he developed a software package to support discrete choice problems (DEFINITE/BOSDA) which is widely used both in the Netherlands and worldwide. In recent projects multicriteria analysis is used to support interactive stakeholder workshops. Examples are stakeholder workshops on waste management strategies in Liverpool, Amsterdam and Stockholm, workshops on management of invasive species in the Black Sea in Bulgaria and Turkey and workshops on fisheries management in South Africa.

  • Using geodesign to support stakeholder workshops in the lower Zambezi Valley (Ministerio de planificacao e desenvolvimento and Agencia de desenvolvimento do vale do Zambeze).
  • WasteEcosmart Optimisation of Integrated Solid Waste Management Strategies for the Maximisation of Resource Efficiency. WP4 Preparation of a Decision Support Framework for the design of Resource Efficiency Management (FP7-REGIONS-2012-2013).
  • Valuation of ecosystem services on Anguilla. The Joint Nature Conservation Committee (JNCC) Peterborough.
  • Valuation of ecosystem services within the British Virgin Island. The Joint Nature Conservation Committee, (JNCC) Peterborough.
  • Designing regional adaptation strategies in the Frisian peat meadow areas: evaluating the effectiveness of management options to maintain or transform this landscape under different scenarios of change (KvK Hotspot Veenweide, Wetterskip Fryslan en Provincie Fryslan.
  • European Seas and Territorial Development Opportunities and Risks (ESaTDOR) (ESPON 2010-2013).


Spatial decision support, interactive geodesign workshops, multicriteria analysis, cost-benefit analysis, valuation of ecosystem services. 

Ancillary activities

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Ancillary activities are updated daily

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Land use Engineering & Materials Science
stakeholder Earth & Environmental Sciences
land use Social Sciences
land use planning Earth & Environmental Sciences
multicriteria analysis Earth & Environmental Sciences
Planning Engineering & Materials Science
Peat Engineering & Materials Science
Decision making Engineering & Materials Science

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 1998 2017

A pictorial approach to geodesign: A case study for the Lower Zambezi valley.

Janssen, R. & Simao Da Graca Dias, E., 2017, In : Landscape and Urban Planning. 164, 17, p. 144 148 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Collaborative use of geodesign tools to support decision-making on adaptation to climate change

Eikelboom, T. & Janssen, R., 2017, In : Mitigation and Adaptation Strategies for Global Change. 22, 2, p. 247-266

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
climate change
decision making
decision making support
United Nations Framework Convention on Climate Change

Delineation of landscape-scale hydrology and plant dispersal processes in species-rich fens: the Operational Landscape Unit approach

Verhoeven, J. T. A., Beltman, B., Janssen, R. & Soons, M. B., 2017, In : Wetlands. 25, 6, p. 761-774

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

A spatial optimization algorithm for geodesign

Eikelboom, T., Janssen, R. & Stewart, T. J., 2015, In : Landscape and Urban Planning. 144, December, p. 10-21

Research output: Contribution to JournalArticleAcademicpeer-review

Comparison of geodesign tools to communicate stakeholder values

Eikelboom, T. & Janssen, R., 2015, In : Group Decision and Negotiation. 24, 6, p. 1065-187 10 p.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access

Activities 2000 2006

  • 35 Lecture / Presentation

Development of a rights allocation process which includes fisher and management views: A case study from the Western Cape, South African

Janssen, R. (Speaker), M. van Herwijnen (Speaker), T.J. Stewart (Speaker)
17 May 2006

Activity: Lecture / PresentationAcademic

Interactive decision support for land use planning

Janssen, R. (Speaker), M. van Herwijnen (Speaker), T.J. Stewart (Speaker), Aerts, J. C. J. H. (Speaker)
2 Jul 2006

Activity: Lecture / PresentationAcademic

Multicriteria modelling for fisheries rights allocations in South Africa

T.J. Stewart (Speaker), A. Joubert (Speaker), Janssen, R. (Speaker)
2 Jul 2006

Activity: Lecture / PresentationAcademic

Management of human-elephant conflict and rural poverty in Sri Lanka

L.H.P. Gunaratne (Speaker), Janssen, R. (Speaker), Brouwer, R. (Speaker), N. Ayoni (Speaker), P. Premaratne (Speaker), L. Nanayakkara (Speaker)
2 Jan 2006

Activity: Lecture / PresentationAcademic

Development of the interactive on-line system for innovative Delta management

Janssen, R. (Speaker), J.E. Vermaat (Speaker), A.Q.A. Omtzigt (Speaker), N.O. de Reus (Speaker), M.A. Eleveld (Speaker)
6 Mar 2006

Activity: Lecture / PresentationAcademic