1981 …2020

Research output per year

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Personal profile

Personal information

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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Research Output

Mountain ecosystem services affected by land use changes and hydrological control works in Mediterranean catchments

Boix-Fayos, C., Boerboom, L. G. J., Janssen, R., Martínez-Mena, M., Almagro, M., Pérez-Cutillas, P., Eekhout, J. P. C., Castillo, V. & de Vente, J., Aug 2020, In : Ecosystem Services. 44, p. 1-14 14 p., 101136.

Research output: Contribution to JournalArticleAcademicpeer-review

  • 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 20 p.

    Research output: Contribution to JournalArticleAcademicpeer-review

    Open Access
  • 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

    Siting offshore energy arrays: A case study using interactive marine planning

    Alexander, K. A., Janssen, R. & O’Higgins, T. G., 1 Jan 2017, Offshore Energy and Marine Spatial Planning. Yates, K. & Bradshaw, C. (eds.). Taylor and Francis, p. 274-283 10 p.

    Research output: Chapter in Book / Report / Conference proceedingChapterAcademicpeer-review

  • Activities

    • 35 Lecture / Presentation

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

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

    Activity: Lecture / PresentationAcademic

    Multicriteria modelling for fisheries rights allocations in South Africa

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

    Activity: Lecture / PresentationAcademic

    Interactive decision support for land use planning

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

    Activity: Lecture / PresentationAcademic

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

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

    Activity: Lecture / PresentationAcademic

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

    R. Janssen (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