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Sustainable water infrastructure planning (SWIP)

English title Sustainable water infrastructure planning (SWIP)
Applicant Lienert Judit
Number 125901
Funding scheme NRP 61 Sustainable Water Management
Research institution SIAM Department Eawag ETH
Institution of higher education Swiss Federal Institute of Aquatic Science and Technology - EAWAG
Main discipline Civil Engineering
Start/End 01.01.2010 - 31.12.2013
Approved amount 631'636.00
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All Disciplines (2)

Discipline
Civil Engineering
Science of management

Keywords (7)

uncertainty and risk; multi criteria decision analysis (MCDA); stakeholder participation; modelling; wastewater; infrastructure planning process; water supply

Lay Summary (German)

Lead
Langfristige Planung nachhaltiger Wasserinfrastrukturen Trinkwasserleitungen, Kanalisation und Kläranlagen sind vielerorts erneuerungsbedürftig. Die aktuelle Wasserpolitik der Schweiz ist für eine nachhaltige und strategische Planung dieser Infrastrukturen aber nur unzureichend gerüstet. Wie müssen Instrumente und Planungsprozesse den Veränderungen in Natur und Gesellschaft angepasst werden?
Lay summary

Hintergrund
Die Infrastrukturen im Wassersektor sollten möglichst lange funktionieren. Ihre Planung ist jedoch komplex: Extremereignisse wie Dürren und Hochwasser sollten in der Planung ebenso berücksichtigt werden wie der zunehmende Wasserbedarf oder die demographische Entwicklung. Die Akteure sind zudem in den Entscheidungsprozess einzubeziehen. Die Aufteilung der Abwasserentsorgung und der Trinkwasserversorgung in verschiedene Organisationseinheiten ist eine Schwachstelle in der Planung. Es sind zwar Instrumente vorhanden, um die Infrastrukturmängel in einer Gemeinde zu identifizieren und Investitionspläne vorzuschlagen. Sie ermöglichen jedoch keine langfristige Planung – auch weil entsprechende Werkzeuge fehlen.

Ziel
Es werden Entscheidungshilfen entwickelt, um die langfristige Planung für Infrastrukturen der Wasserversorgung und Abwasserentsorgung zu verbessern. Ein Gleichgewicht der ökonomischen Kosten, ökologischen Aspekte und sozialen Wertvorstellungen wird angestrebt. Besonders berücksichtigt wird, dass in vielen Gemeinden genaue Daten zu den Infrastrukturen fehlen und dass zukünftige Entwicklungen nicht mit Sicherheit vorausgesagt werden können. Mit einer mehrschichtigen Entscheidungsanalyse werden die subjektiven Präferenzen verschiedener Entscheidungsträger miteinbezogen. Die Entscheidungshilfen werden in mehreren Gemeinden gemeinsam mit den Praxispartnern entwickelt und validiert.

Bedeutung
Die zu entwickelnden Instrumente unterstützen den Übergang von einem problembasierten „Reparieren“ zu einer vorausschauenden Planung von Wasserinfrastrukturen. Die in den Fallstudien beteiligten Akteure werden für Fragen der Planung sensibilisiert, indem sie an einem zukunftsgerichteten, gemeinschaftlichen Planungsprozess beteiligt sind. Der Ansatz kann auf andere schwierige Entscheidungssituationen, bei denen viele Akteure beteiligt sind, angepasst werden.

Direct link to Lay Summary Last update: 12.02.2013

Lay Summary (French)

Lead
Planification à long terme d’infrastructures durables de distribution et de traitement de l’eau Les conduites d’eau potable, les canalisations et les stations d’épuration nécessitent un peu partout des rénovations. La politique actuelle dans le domaine de l’eau en Suisse n’est toutefois qu’insuffisamment préparée à une planification durable et stratégique de ces infrastructures.
Lay summary

Contexte
Les infrastructures de distribution et de traitement de l’eau doivent rester en état de fonctionnement aussi longtemps que possible. Leur planification est toutefois complexe: des événements extrêmes tels que sécheresses ou crues doivent être pris en compte tout comme le besoin croissant en eau ou le développement démographique. De plus, les acteurs doivent être impliqués dans les processus décisionnels. La séparation de l’élimination des eaux usées et de l’approvisionnement en eau potable en unités organisationnelles distinctes est un point faible dans la planification. Il existe certes des dispositifs permettant d’identifier les défauts dans l’infrastructure d’une commune et de proposer des plans d’investissement. Mais ils ne permettent pas une planification à long terme – entre autres parce qu’il manque les outils nécessaires.

But
Ce projet élabore des aides à la décision, afin d’améliorer la planification à long terme des infrastructures d’approvisionnement en eau et d’évacuation des eaux usées. Il aspirera à un équilibre entre les coûts économiques, les aspects écologiques et les valeurs sociales. Ce projet tiendra particulièrement compte du fait que, dans de nombreuses communes, les données exactes sur les infrastructures manquent et que le développement futur ne peut être prédit de manière certaine. A l’aide d’une analyse décisionnelle à plusieurs niveaux, les préférences subjectives des différents décideurs seront prises en compte. Les aides à la décision seront développées et validées dans plusieurs communes, en collaboration avec les partenaires issus de la pratique.

Portée
Les instruments à développer soutiennent le passage d’une «réparation» basée sur les problèmes à une planification prévoyante des infrastructures de distribution et de traitement de l’eau. Les acteurs participant aux études de cas seront sensibilisés aux questions de planification, grâce à leur inclusion dans un processus de planification communautaire et orienté vers l’avenir. Cette approche peut être adaptée à d’autres situations difficiles, nécessitant la prise de décisions et impliquant un nombre d’acteurs différents.

Direct link to Lay Summary Last update: 12.02.2013

Lay Summary (English)

Lead
Sustainable water infrastructure planning Water supply pipes, sewers and wastewater treatment plants are in need of renovation in many places. However, current water policies in Switzerland are inadequate for the durable and strategic planning of such infrastructure. How must tools and planning processes be adapted to the changes in nature and society?
Lay summary
Background
Infrastructure in the water sector should be as long-lived as possible. However, its planning is very complex: extreme events such as droughts and floods should be taken into account to the same extent as the increasing water demand or the demographic development. Also, the stakeholders are to be included in the decision making processes. The division of waste water disposal and drinking water supply into separate organizational entities is a weak point in the planning process. Instruments are available to identify infrastructural flaws in a municipality and to recommend investment plans. But they do not make long-term planning possible – amongst other things because the necessary tools are not available.

Objectives and methods
Decision making support will be developed so that the long-term planning of water supply and wastewater treatment infrastructure can be improved. The project will strive for a balance between economic costs, ecological aspects and social values. Special attention will be given to the fact that many communities have only limited data concerning their infrastructure and that future developments cannot be predicted with certainty. Subjective preferences of the various policy-makers will be integrated by means of a multi-layered decision analysis. Decision making support will be developed and validated in several municipalities, together with the practically-oriented partners.

Significance
The tools that will be developed assist the transition from problem-based “repairs” to foresighted planning of water infrastructure. The stakeholders participating in the case studies will be sensitized for planning issues by being included in a forward-looking, joint planning process. This approach can be adapted to other difficult decision-making situations in which many different stakeholders are involved.

Direct link to Lay Summary Last update: 12.02.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
Stakeholder interviews with two MAVT preference elicitation philosophies in a Swiss water infrastructure decision: aggregation using SWING-weighting and disaggregation using UTA-GMS
Zheng Jun, Lienert Judit (2018), Stakeholder interviews with two MAVT preference elicitation philosophies in a Swiss water infrastructure decision: aggregation using SWING-weighting and disaggregation using UTA-GMS, in European Journal of Operational Research, 267(1), 273-287.
Comparing multi-criteria decision analysis and integrated assessment to support long-term water supply planning
Scholten Lisa, Maurer Max, Lienert Judit (2017), Comparing multi-criteria decision analysis and integrated assessment to support long-term water supply planning, in PLoS ONE, 12(5), e0176663-e0176663.
A scenario-based MCDA framework for wastewater infrastructure planning under uncertainty
Zheng Jun, Egger Christoph, Lienert Judit (2016), A scenario-based MCDA framework for wastewater infrastructure planning under uncertainty, in Journal of Environmental Management , 183(3), 895-908.
Preference stability over time with multiple elicitation methods to support wastewater infrastructure decision-making
Lienert Judit, Duygan Mert, Zheng Jun (2016), Preference stability over time with multiple elicitation methods to support wastewater infrastructure decision-making, in European Journal of Operational Research, 253(3), 746-760.
Scholten, L., Schuwirth, N., Reichert, P., Lienert, J. (2015) Tackling uncertainty in multi-criteria decision analysis – An application to water supply infrastructure planning.
Scholten Lisa, Schuwirth Nele, Reichert Peter, Lienert Judit (2015), Scholten, L., Schuwirth, N., Reichert, P., Lienert, J. (2015) Tackling uncertainty in multi-criteria decision analysis – An application to water supply infrastructure planning., in European Journal of Operational Research, 242(1), 243-260.
Structured decision-making for sustainable water infrastructure planning and four future scenarios
Lienert Judit, Scholten Lisa, Egger Christoph, Maurer Max (2015), Structured decision-making for sustainable water infrastructure planning and four future scenarios, in EURO Journal on Decision Processes , 3(1-2), 107-140.
Strategic rehabilitation planning of piped water networks using multi-criteria decision analysis
Scholten Lisa, Scheidegger Andreas, Reichert Peter, Maurer Max, Lienert Judit (2014), Strategic rehabilitation planning of piped water networks using multi-criteria decision analysis, in Water Research, 49, 124-143.
Combining expert knowledge and local data for improved service life modeling of water supply networks
Scholten Lisa, Scheidegger Andreas, Reichert Peter, Maurer Max (2013), Combining expert knowledge and local data for improved service life modeling of water supply networks, in Journal of Environmental Modelling and Software, 42, 1-16.
Extension of pipe failure models to consider the absence of data from replaced pipes
Scheidegger Andreas, Sholten Lisa, Maurer Max, Reichert Peter (2013), Extension of pipe failure models to consider the absence of data from replaced pipes, in Water Research, 47(11), 3696-3705.
Meeting the challenges of transdisciplinary knowledge production for sustainable water governance
Renner R., Schneider F., Hohenwallner C., Kopeinig C., Kruse S., Lienert J., Link S., Muhar S. (2013), Meeting the challenges of transdisciplinary knowledge production for sustainable water governance, in Mountain Research and Development , 33(3), 234-247.
Sewer deterioration modeling with condition data lacking historical records
Egger Christoph, Scheidegger Andreas, Reichert Peter, Maurer Max (2013), Sewer deterioration modeling with condition data lacking historical records, in Water Research, 47, 6762-6779.
Stakeholder analysis combined with social network analysis provides fine-grained insights into water infrastructure planning processes
Lienert Judit, Schnetzer Florion, Ingold Karin (2013), Stakeholder analysis combined with social network analysis provides fine-grained insights into water infrastructure planning processes, in Journal of Environmental Management, 125, 134-148.
Identifying biases in deterioration models using synthetic sewer data
Scheidegger A, Maurer M (2012), Identifying biases in deterioration models using synthetic sewer data, in WATER SCIENCE AND TECHNOLOGY, 66(11), 2363-2369.
Nachhaltige Wassernutzung: Der Fall Mönchaltorfer Aa, Greifensee, transdisziplinäre Fallstudie 2011 (Eine Studie im Rahmen des Nationalen Forschungsprogramm "Nachhaltige Wassernutzung" (NFP 61))
Jaquemet Dominique, Battaglia Gianna (2012), Nachhaltige Wassernutzung: Der Fall Mönchaltorfer Aa, Greifensee, transdisziplinäre Fallstudie 2011 (Eine Studie im Rahmen des Nationalen Forschungsprogramm "Nachhaltige Wassernutzung" (NFP 61)), ETH-UNS TdLab, ETH-Zürich.
Network condition simulator for benchmarking sewer deterioration models.
Scheidegger A, Hug T, Rieckermann J, Maurer M (2011), Network condition simulator for benchmarking sewer deterioration models., in Water research, 45(16), 4983-94.

Collaboration

Group / person Country
Types of collaboration
Eawag (NFP-61-Projekte, iWaqA, IWAGO) Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
Forschungsanstalt Agroscope (NFP-61 Projekt "Increasing water scarcity also for Swiss agriculture") Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
MCDM 2015, 23rd International Conference on Multiple Criteria Decision Making Talk given at a conference Integrating stakeholders in an MCDA-process for sustainable water infrastructure planning 02.08.2015 Hamburg, Germany Scholten Lisa; Zheng Jun; Lienert Judit;
MCDM 2015, 23rd International Conference on, Multiple Criteria Decision Making Talk given at a conference Tackling uncertainty in MCDA – applied to water infrastructure planning 02.08.2015 Hamburg, Germany Lienert Judit; Reichert Peter; Scholten Lisa;
EURO – 27th European Conference on Operational Research Talk given at a conference Preference stability over time using two weight elicitation methods for wastewater infrastructure planning 12.07.2015 Glasgow, Great Britain and Northern Ireland Lienert Judit; Zheng Jun; Duygan Mert;
Statuskonferenz zur BMBF-Fördermassnahme “Intelligente und multifunktionelle Infrastruktursysteme für eine zukünftige Wasserversorgung und Abwassersentsorgung” (INIS) Talk given at a conference (Invited Keynote Speaker) Einbezug von Akteuren zur langfristigen Planung nachhaltiger Wasserinfrastrukturen (SWIP) in einer unsicheren Welt 20.01.2015 Hamburg, Germany Lienert Judit;
Statuskonferenz zur BMBF-Fördermassnahme “Intelligente und multifunktionelle Infrastruktursysteme für eine zukünftige Wasserversorgung und Abwassersentsorgung” (INIS) Talk given at a conference Einbezug von Akteuren zur langfristigen Planung nachhaltiger Wasserinfrastrukturen (SWIP) in einer unsicheren Welt (invited Keynote) 20.01.2015 Hamburg, Germany Lienert Judit;
Presentation at the TU-Prague, CZ Individual talk Sustainable Water Infrastructure Management 15.01.2015 Prague, Czech Republic Maurer Max;
netWORKS 3 / INIS Individual talk Fachgespräch „Integrierte Bewertung“. ISOE 15.12.2014 Frankfurt am Main, Germany Lienert Judit;
INFORMS Annual Meeting 2014 Talk given at a conference Tackling uncertainty in complex MCDA and MAUT problems 09.11.2014 San Francisco, CA, United States of America Lienert Judit; Reichert Peter; Scholten Lisa;
INFORMS Annual Meeting 2014 Talk given at a conference Integrating stakeholders in an MCDA-process for sustainable water infrastructure planning 09.11.2014 San Francisco, CA, United States of America Zheng Jun; Scholten Lisa; Lienert Judit;
Abschlusstagung, Ergebnisse des NFP 61 «Nachhaltige Wassernutzung», Swiss National Science Foundation Poster Wasserinfrastrukturen nachhaltig planen – Modellierung, Entscheidungsanalyse und Partizipation für Kanal- und Wasserversorgungsnetze 05.11.2014 Solothurn, Switzerland Maurer Max; Lienert Judit;
Presentations at the international Sewer Asset Management Workshop Talk given at a conference MCDA and deterioration modelling in water infrastructure planning 19.06.2014 Berlin, Germany Egger Christoph Simon; Maurer Max;
Presentation at the ETH-Partnership Council Sustainable Construction Meeting Talk given at a conference Sustainable urban water mangement 20.05.2014 Zürich, Switzerland Egger Christoph Simon; Maurer Max;
IWA Water, Environment, Climate Conference Talk given at a conference Long-term water supply planning with multi-criteria decision analysis 20.05.2014 Mexico City, Mexico Lienert Judit; Scholten Lisa; Maurer Max;
Presentation at the Res'Eau – Eawag workshop Talk given at a conference Water Infrastructure Planning 29.04.2014 Dübendorf, Switzerland Maurer Max;
Presentation at the Kolloquium of Lück Stiftung Talk given at a conference Nachhaltige Wasserinfrastruktur Planung 13.01.2014 Zürich, Switzerland Maurer Max;
21st European Junior Scientist Workshop on Sewer Assest Management Talk given at a conference Sewer rehabilitation planning based on data with limited information content 20.11.2013 Delft, Netherlands Egger Christoph Simon;
Seminar at ISOE Talk given at a conference Multi-criteria decision analysis for water supply infrastructure planning under uncertainty 19.11.2013 Frankfurt, Germany Scholten Lisa;
Seminar on Transdisciplinary Research for Sustainable Development, D-USYS, ETH Zürich Individual talk Making hard decisions to ensure safe water supply and wastewater disposal in uncertain futures 06.11.2013 Zürich, Switzerland Lienert Judit;
3rd Progress Report Meeting/ Final Meeting, NRP 61 Sustainable Water Management Talk given at a conference Sustainable Water Infrastructure Planning, SWIP 24.10.2013 Thun, Switzerland Maurer Max; Lienert Judit;
3rd Progress Report Meeting/ Final Meeting, NRP 61 Sustainable Water Management Poster Incorporating stakeholders’ preferences into wastewater infrastructure planning 14.10.2013 Thun, Switzerland Zheng Jun; Lienert Judit;
22nd International Conference on Multiple Criteria Decision Making. MCDM for Tomorrow’s World Talk given at a conference MCDA for water supply infrastructure planning under uncertainty 17.06.2013 Malaga, Spain, Spain Lienert Judit; Scholten Lisa;
22nd International Conference on Multiple Criteria Decision Making, MCDM for Tomorrow’s World Talk given at a conference Incorporating stakeholders’ preferences into wastewater infrastructure planning 17.06.2013 Malaga, Spain Zheng Jun; Lienert Judit;
UrbanRain12, 9th International Workshop on Precipitation in Urban Areas Talk given at a conference Impact of climate change on urban drainage system performance. 9th International workshop on precipitation in urban areas 06.12.2012 St Moritz, Switzerland, Switzerland Maurer Max; Egger Christoph Simon;
Seminar on Water Distribution Network Failure Modeling and Rehabilitation Planning, Eawag Talk given at a conference Strategic rehabilitation planning for small Swiss water utilities 12.11.2012 Dübendorf, Switzerland Scholten Lisa;
Online presentation. RES'EAU-WaterNET round table (Canada) Talk given at a conference Multiple-criteria decision support for sustainable water infrastructure planning 17.08.2012 Online, Canada Scholten Lisa;
European Conference of Operational Research Talk given at a conference Tackling uncertainties in MCDA for sustainable water infrastructure 08.07.2012 Vilnius, Lithuania, Lithuania Lienert Judit; Scholten Lisa;
21st SRA-Europe Meeting, Society for Risk Analysis (SRA) Europe, ETH Zürich Talk given at a conference Making hard decisions to ensure safe water supply and wastewater disposal in uncertain futures 18.06.2012 ETH Zürich, Switzerland Lienert Judit;
2nd Progress Report Meeting NRP61 Talk given at a conference Sustainable Water Infrastructure Planning 12.03.2012 Vitznau, Switzerland Maurer Max; Scholten Lisa; Lienert Judit; Egger Christoph Simon;
2nd Progress Report Meeting NRP61 Poster Long-term planning of sewer systems (SWIP) 12.03.2012 Vitznau, Switzerland Egger Christoph Simon; Reichert Peter; Maurer Max;
KWR (Watercycle Research Institute ), Eawag seminar Talk given at a conference Combination of prior knowledge and data for improved service life modeling of water supply networks 09.03.2012 Dübendorf, Switzerland Scholten Lisa;
IWA-Leading Edge Asset Management Conference LESAM 2011 Talk given at a conference Identifying biases in deterioration models using synthetic sewer data. 20.09.2011 Mülheim, Germany, Germany Maurer Max;
Eawag Seminar in Infrastructure Management, Institute of Construction and Infrastructure Management Talk given at a conference Sewer deterioration modeling – dealing with unrepresentative data 13.09.2011 ETH Zürich, Switzerland Egger Christoph Simon;
NRP-61 1st Progress Report Meeting Poster SWIP – Sustainable water infrastructure planning 01.04.2011 Murten, Switzerland Schnetzer Florian; Egger Christoph Simon; Scholten Lisa;
1st NRP-61 Progress Report Meeting Talk given at a conference Sustainable Water Infrastructure Planning (SWIP) 01.04.2011 Murten, Switzerland Schnetzer Florian; Scholten Lisa; Egger Christoph Simon; Maurer Max; Lienert Judit;
ETH- Eawag Seminar in Infrastructure Management, Institute of Construction and Infrastructure Management Talk given at a conference Pipe deterioration, data, and experts 22.02.2011 ETH Zürich, Switzerland Scholten Lisa;
ETH-Eawag Seminar in Infrastructure Management Talk given at a conference Wastewater Infrastructure Planning. Prediction of future condition of wastewater infrastructure within SWIP 14.09.2010 Eawag, Dübendorf, Switzerland Egger Christoph Simon;
ETH- Eawag Seminar in Infrastructure Management Talk given at a conference Water supply infrastructure management in Switzerland. The SWIP perspective 14.09.2010 Eawag, Dübendorf, Switzerland Scholten Lisa;
NFP-61 Kick-off meeting Talk given at a conference Sustainable Water Infrastructure Planning (SWIP) 04.03.2010 Solothurn, Switzerland Lienert Judit; Maurer Max; Reichert Peter;


Self-organised

Title Date Place

Knowledge transfer events

Active participation

Title Type of contribution Date Place Persons involved
Input for Workshop „Wissensintegration Forschung – Praxis“. NFP 61 «Nachhaltige Wassernutzung», Swiss National Science Foundation Talk 25.11.2014 Berne, Switzerland Lienert Judit;
Praxisworkshop, Entscheidungshilfen und Umsetzungswerkzeuge des NFP 61 «Nachhaltige Wassernutzung», Swiss National Science Foundation; Blick in die Zukunft – Gesellschaftliche und wirtschaftliche Szenarien Talk 05.11.2014 Solothurn, Switzerland Lienert Judit;
SVGW Gas- und Wasserfachtagung Talk 19.09.2013 Lugano, Switzerland Maurer Max; Scholten Lisa;
PEAK-Fachtagung: Herausforderungen einer nachhaltigen Wasserwirtschaft Talk 14.09.2012 Eawag, Dübendorf, Switzerland, Switzerland Maurer Max; Lienert Judit;
Transdisziplinäre Wissensproduktion in der Wasserforschung Workshop 19.04.2012 AlpS, Innsbruck, Österreich, Austria Lienert Judit;


Self-organised

Title Date Place
Workshop Praxis-Begleitgruppe SWIP: Langfristige Planung nachhaltiger Wasserinfrastrukturen 02.05.2012 Eawag, Dübendorf, Schweiz, Switzerland
Ziele und Alternativen der Wasserinfrastrukturen für das Gebiet der Mönchaltorfer Aa. 2nd Workshop with stakeholders from case study „Mönchaltorfer Aa“. 26.05.2011 Grüningen, Switzerland
1st Workshop with stakeholders from case study „Mönchaltorfer Aa“ 19.04.2011 Grüningen, Switzerland

Communication with the public

Communication Title Media Place Year
Media relations: print media, online media Kanalnetzbemessung unter Unsicherheit. Die Bedeutung des Klimawandels für die hydraulische Funktion Aqua & Gas 11, 2015: 56-63 German-speaking Switzerland Western Switzerland Italian-speaking Switzerland 2015
Media relations: print media, online media Schätzung der Kanalalterung. Modellbasierte Schätzung des Alterungsverhaltens von Kanalnetzen ohne D Aqua & Gas 11, 2015: 4-54 Italian-speaking Switzerland Western Switzerland German-speaking Switzerland 2015
Media relations: radio, television Die Wasserversorgung in der Schweiz Radio SRF1 Treffpunkt German-speaking Switzerland 2014
Media relations: radio, television Im Untergrund drohen Wasserlecks Radio SRF 2 Wissenschaftsmagazin German-speaking Switzerland 2014
Media relations: print media, online media Multikriterielle Entscheidungsunterstützung. Neue Ansätze für langfristige Infrastrukturplanung Aqua & Gas 5, 2014: 62–69 German-speaking Switzerland 2014
Media relations: radio, television Radio interview Lisa Scholten: Les canalisations: un gouffre à millards Radio Télévision Suisse, Nicole della Pietra Western Switzerland 2014
Media relations: print media, online media Wasserinfrastrukturen nachhaltig in eine unsichere Zukunft führen Eawag news 02/ April 2014: 1–8 International 2014
Media relations: print media, online media Zustandsmodellierung kleiner Versorgungsnetze Aqua & Gas 6 German-speaking Switzerland 2014
Media relations: print media, online media Prognosen zum Sanierungsbedarf der Schweizer Kanalisation Aqua & Gas 1:2013 German-speaking Switzerland 2013
Media relations: print media, online media Judit Lienert: „Wir arbeiten mit einer ‚multikriteriellen Entscheidungsanalyse“ Aqua & Gas 5:2012 German-speaking Switzerland 2012
Print (books, brochures, leaflets) Erhebung quantitativen Expertenwissens über die Alterung von Wasserleitungen und Kanalhaltungen German-speaking Switzerland 2011

Abstract

The aim of the project is to improve the current planning process for water infrastructures, exemplified in two Swiss catchments with several municipalities involved. Main goal is to provide a procedural tool for more comprehensive and integrative water infrastructure planning (SWIP) that enhances planning efficiency, is well accepted by stakeholders, and can help overcome the common Nash equilibrium situation. There is an emphasis on dealing with limited data availability and the uncertainty of future developments. The suggested approach integrates itself into the existing governance structures (planning procedure, e.g. GEP, GWP) without the prior need to change organizational or legal frameworks.The interdisciplinary research project is approached with three dissertations. (A) One PhD student is responsible for multi criteria decision analysis (MCDA) in water supply. The focus is on predicting the consequences of different water infrastructure development alternatives and on estimating and dealing with uncertainty in prediction and valuation for decision support. Prediction will be based on the conceptual development of the Dynamic Water Infrastructure Model of the second dissertation and on existing water infrastructure planning software adapted to consider uncertainty.(B) The second PhD student will develop the Dynamic Wastewater Infrastructure Model (DWIM) that predicts consequences of planning alternatives in the wastewater sector. DWIM is a toolbox of new models (Infrastructure Generator, Decay Model and Management Module), combined with an existing Integrated Urban Catchment Simulator. DWIM includes an uncertainty framework that considers the uncertainties and variability of the model inputs (e.g. future rain patterns, demographic changes) and parameters (e.g. runoff coefficient). The outputs of the DWIM are costs over time and water quality indicators for a range of management options. These are needed as an input into the decision analysis.(C) The third dissertation focuses entirely on decision sciences and stakeholder participation, applying MCDA for wastewater infrastructure management. A stakeholder analysis is carried out in the case studies and the objectives hierarchy is developed for water supply and wastewater together with the decision makers. The model predictions for wastewater alternatives of PhD (B) are integrated into the MCDA. The methodological contribution focuses on MCDA problems to elicit stakeholder values. PhD (C) also studies the integration of individual results in multistakeholder settings and group decision making.The combination of engineering with the decision sciences will result in an integrated and participatory planning procedure for water supply and wastewater infrastructure management that balances economic aspects (we predict costs of decision alternatives), with ecology (we link to ecosystem effects), and social aspects (we integrate stakeholder values). The proposed approach is tested in two cases in cooperation with an engineering firm and the municipalities. To ensure good anchoring with current scientific knowledge and experts, we also collaborate with other NRP-61 projects and representatives from SVGW and VSA. The results from the case studies will give an exemplary understanding of the individual stakeholder’s objectives and preferences and will support future-oriented, collaborative planning processes under change scenarios. Based on the outcomes, we will refine the modular decision support procedure for other applications and generate an implementation guideline. Thus, the entire approach, or only elements of it, can be adapted to a variety of real-world difficult decision situations with multiple stakeholders involved.
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