Supporting Multi Stakeholder Involvement for Flood Risk Management Planning
Total Page:16
File Type:pdf, Size:1020Kb
Supporting Multi Stakeholder Involvement for Flood Risk Management Planning Natasa Manojlovic, Niloufar Behzadnia, Sandra Hellmers, Dmitrijs Barbarins, Erik Pasche†, Hamburg University of Technology-TUHH Belgrade, 6th, September 2012 Contents • Introduction • SAWA-HH Governance Approach – DSS for FRMP • Implementation • Lessons learned and conclusions Introduction D: Climate change P: Rapid urbanisation (Flood Directive, EC 2007/60 ) 1. preliminary risk assessment 2. flood hazard and risk map 3. flood risk management plan (FRMP) Due – end of 2015 Introduction What says the Flood Directive EC 2007/60 (Article 10 (1)) : Member States shall make available to the public the preliminary flood risk assessment, the flood hazard maps, the flood risk maps and the flood risk management plans. (Article 10 (2)) : Member States shall encourage active involvement of interested parties in the production, review and updating of the flood risk management. Open Question in the context of FRMP What are efficient ways of public and stakeholder participation in the planning procedure? What is the appropriate method to quantify the efficiency and effectiveness of the developed strategies for FRMP? Introduction Governance is a process Definition: the process of decision-making and the process by which decisions are implemented (UN – Economic and social commission of Asia and the Pacific) - It is about how authorities, institutions and social organizations interact with citizens when making decisions Good Governance stands for . multifaceted decision making process where the societal goals are pursued with the interactions of all the interested actors in all specific fields of development . and in which ethical and democratic issues are respected, such as responsibility, accountability, transparency, equity, and fairness SAWA-HH Governance Approach Bottom up governance strategy for development of a Flood Risk Management Plan: (Adapted from Ashley et al, 2008) SAWA-HH Governance Approach 1. Scoping 4. Evaluation Sn, SQ Sn, kw, se Maßnahmen Beschreibung ... ... Maßnahmen Beschreibung ... ... Social Competences Stakeholder Analysis HWRMP- M1 HWRMP- M1 MaßnahmenHWRMP- M2Beschreibung ... ... MaßnahmenHWRMP- M2Beschreibung ... ... HWRMP-HWRMP- M1 M3 HWRMP-HWRMP- M1 M3 MaßnahmenHWRMP-HWRMP- M2Beschreibung M4 ... ... MaßnahmenHWRMP-HWRMP- M2Beschreibung M4 ... ... HWRMP-HWRMP- M1 ...M3 HWRMP-HWRMP- M1 ...M3 HWRMP-HWRMP- M2 M4 HWRMP-HWRMP- M2 M4 HWRMP-... M3 HWRMP-... M3 2. Understanding & Envisioning HWRMP- M4 HWRMP- M4 ... ... Development of shared vision of where to get to 3. Experimenting Flood Risk Management Plan Generating different planning options SAWA-HH Governance Approach Models are required to support the planning process For both decision making and capacity building of stakeholders Methods and tools supporting the planning process Social a) Guidance for role assignment (stakeholder analysis) b) Conflict analysis c) Social learning methods Manojlovic et al (2011, 2012) Pasche et al (2010) Technical d) Raising risk awareness e) Capacity building f) Decision support tools SAWA-HH Governance Approach How to assess the efficiency of different options of flood risk management planning? How to support multistakeholder planning? Sn, SQ Sn, kw, se Maßnahmen Beschreibung ... ... Maßnahmen Beschreibung ... ... HWRMP- M1 HWRMP- M1 MaßnahmenHWRMP- M2Beschreibung ... ... MaßnahmenHWRMP- M2Beschreibung ... ... HWRMP-HWRMP- M1 M3 HWRMP-HWRMP- M1 M3 MaßnahmenHWRMP-HWRMP- M2Beschreibung M4 ... ... MaßnahmenHWRMP-HWRMP- M2Beschreibung M4 ... ... HWRMP-HWRMP- M1 ...M3 HWRMP-HWRMP- M1 ...M3 HWRMP-HWRMP- M2 M4 HWRMP-HWRMP- M2 M4 HWRMP-... M3 HWRMP-... M3 HWRMP- M4 HWRMP- M4 ... ... Option 1 Option n Efficiency ??? Decision support systems are required Implementation Wandse Catchment Area- Hamburg (~88 km2, 21,5 km) Learning&Action Alliances Objective: development of a flood risk management plan (EU Flood Directive, 2007) Implementation Upper catchment- nature protection area Implementation mid&low catchment- mixed urban typology (here: highly urbanised area of Rahlstedt centre) Implementation Institutional/Legislative context Formal leader: responsible authority LSBG Implementation Structure: Formal leader: responsible authority LSBG (legitimacy- high) • Kick of meeting (constitution) – Increasing profile of the LAAs – Raising awareness among decision makers/ politicians • Series of workshops (14 Working sessions), once a month/ 2months, 2 h each – Working sessions following the phases of the governance approach – Core part of the LAAs • One site visits – Assessing the criticality of the system on site – Embedded into the phases of the governance approach • Online participation – Scoping the expertise of the participants – Consensus finding process Phase 1: Scoping Development of shared vision of the problem (Flood Risk) 1 Stakeholder Analysis Phase 1: Scoping Stakeholder analysis Method: snowballing, direct contacts LAA configuration /per numbers of stakeholder groups (in total 25) 1 Categories of Stakeholders Nr of partic Strategic flood and drainage 4 Spatial & management Urban landscape development planning Implementation and 3 maintenance Urban development 2 Emergency Agriculture 0 Nature services Urban and landscape design 1 Conservation Water Environmental protection & 3 management nature conservation Emergency services 1 Private Politicians 2 Agriculture, stakeholders Forestry NGOs 2 Public interest groups 2 Insurance Economy and Industry 1 Research 4 (source: LAWA, 2010) Phase 1: Scoping 3 2 1 Building Social Competences and mutual trust Confronting with flood risk and raising awareness Understanding the system drivers and Flood Maps pressures, sensitivity, response Phase 2: Understanding & Envisioning Development of shared vision of where to get to 2 1 Toolbox of adaptive (NSM) measures Flood Probability Reduction Measures (FPRM) Flood Resilience Measures (FReM) 8.50 8.40 Stat 8.208.30 8.10 u… 7.908.00 7.707.80 7.60 Formulate options of adaptive flood risk management 7.407.50 7.207.30 7.007.10 3.604 3.610 3.741 3.814 3.832 3.920 3.937 3.988 4.112 4.158 4.181 4.201 Synergies with WFD Phase 3: Experimenting Formulate options of adaptive flood risk management by NSM 3 2 1 Development of planning options Multi touch interactive planning Discussions Phase 3: Experimenting Decision support tool 3 Kalypso Planner Client 2 - Open source modelling platform 1 Comparison with Planning Interactive baseline scenario area planning workflow / scenario Gauging definition stations Hydrographs Map layers Phase 3: Experimenting Kalypso baseline models 3 2 Rainfall-runoff 1 1D steady flow 1D/2D unsteady flow Flooded areas Flood risk Planner Client Coordinator Baseline model database Define model chain Phase 3: Experimenting PLC Model Chain KalypsoHydrology KalypsoWSPM 3 Rainfall-Runoff Model 1D Flow Model 2 1 KalypsoRisk KalypsoFlood Flood Damage / Flood Depth Model Flood Risk Model Kalypso1D2D 1D-2D Coupled Flow Model • Can disable parts of the chain • Start with either rainfall-runoff or flow model • Terminate with either flood depth maps or risk map • Prepare events of different annuality for risk calculation Phase 3: Experimenting Role of PLC in FRMP 3 2 1 Physically based Web based GUI Assessment of the efficiency of the measures ……. Phase 3: Experimenting 3 2 Multi touch technology for GUI 1 Phase 3: Experimenting Catchment Water course Local “Hotspots“ 3 2 1 Wandse + + E i c h ta lte i c h - Dezentrale Regenwasserbewirtschaftungsmaßnahmen Berner Au-Wandse 2. Natürlicher (Gründach und Versickerung- Schule Eichtalpark) Wasserrückhalt Var 1: Kleingärten aus Überschwemmungsgebiet 2. Natürlicher herausnehmen - Totholzfang an der Brücke „Bei den Hopfenkarre“ Berner Au-Wandse Wasserrückhalt - Gewässerunterhaltung 3. Technischer - Objektschutz Var 1: Kleingärten aus Überschwemmungsgebiet Hochwasserschutz Var 2: Kleingartenanlage als Grünanlage ausbauen Var 1: Optimierung der Steuerung des RHB-Eichtalteich 2. Natürlicher herausnehmen - Wall zwischen Berner Au und Wandse entfernen und als Wasserrückhalt Var 2: Optimierung des Umlaufgewässers 3. Technischer Biotop ausbauen Var 2: Kleingartenanlage als Grünanlage ausbauen H o lz m ü h le n te i c h Hochwasserschutz - Gewässerunterhaltung - Durchgängigkeit des Holzmühlenteiches herstellen - Wall zwischen Berner Au und Wandse entfernen und- Optimierung als der Steuerung von HRB Berner2. Natürlicher Au Biotop ausbauen 3. Technischer Var 1: Ausbau des Ostender Teichs als RHBWasserrückhalt (Oberhalb von Hochwasserschutz - Gewässerunterhaltung 7,7100 km Durchlass in Ostender Teich nach Gutachten öffnen - Optimierung der Steuerung von HRB Berner Au Var 1: Ausbau des RHBs Holzmühlenteich Var 2: Optimierung der Steuerung Var 1: Ausbau des Ostender Teichs als RHB (Oberhalb von 3. Technischer Var 2: Status Quo bei dem Ostender Teich Hochwasserschutzbeibehalten (Als 7,7100 km Durchlass in Ostender Teich nach Gutachten öffnen - Gewässerunterhaltung Freibad beibehalten) Var 2: Status Quo bei dem Ostender Teich beibehaltenHochwasserangepasste (Als Nutzung und ObjektschutzMühlenteich der bis an Freibad beibehalten) das Gewässer reichenden Bebauung - Dezentrale Regenwasserbewirtschaftungsmaßnahmen ( HochwasserangepassteN ord Nutzung m a rkte und i c hObjektschutz der bis an Gründach HANSA-Kolleg) das Gewässer reichenden Bebauung 2. Natürlicher - Durchgängigkeit an der Mühlenstraße herstellen Wasserrückhalt - Strukturverbesserung der Rahlau (Höhe Ahrensburgerstr.) Var 1: Gewässerrenaturierung N o rd m a rk te i c h 2. Natürlicher