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The role of green infrastructure at the city scale

The role of green infrastructure at the city scale. Arturo Casal-Campos. Summary. Water, energy and sustainability Multifunctional green infrastructure Project overview Answers?. Water, energy and sustainability. Extra treatment required. Reduce CSOs. Rehabilitation of watercourses.

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The role of green infrastructure at the city scale

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  1. The role of green infrastructure at the city scale Arturo Casal-Campos

  2. Summary • Water, energy and sustainability • Multifunctional green infrastructure • Project overview • Answers?

  3. Water, energy and sustainability • Extra treatment required. • Reduce CSOs. • Rehabilitation of watercourses. • Amenity benefit to community. • Ecosystem services. • Uncertain cost of solutions.

  4. Multifunctional green infrastructure Building insulation Carbon sequestration Amenity in cities Enhanced water courses Storm water management Various budgets The carbon footprint of GI: A call for integration

  5. Project overview • Aim: Assess the role of city scale GI in the fulfillment of key environmental (water quality and carbon footprint) and socio-economic objectives (whole life cost). • Objectives: • Identify and select adequate methods and tools for the planning and assessment of GI. • Select suitable case study areas representative of drainage conditions and systemic problems within the NWL region. • Propose a variety of generic GI interventions that serve typical urban development forms of the case study areas. • Optimise the selection and placement of SuDS for a number of performance objectives: receiving water quality, energy use/carbon footprint of the system, and whole life costs. • Elaborate recommendations for the planning and implementation of SuDS at the city scale (e.g. potential barriers).

  6. Project overview GI planning Other assessment tools: CO2, CAPEX, OPEX Impact of planned interventions Objectives Optimizer

  7. Project overview • Review stage:GI planning, performance criteria & assessment, IUWWS and GI models. Tools and identify data requirements. Uncertainties of model results. LITERATURE REVIEW. • ‘Benchmark’ stage: Construct SIMBA 6 model for ‘benchmark’ case study. Prepare and test all the necessary tools for the assessment and simulation of GI. TEST APPROACH TO PROBLEM AND SET STRUCTURE. • Case study stage: Selection of adequate case study and collection of data, ready to construct a SIMBA 6 integrated case study and set up all the necessary tools. Collection of results. PROJECT’S CORE. • Reflective work stage: Assess and compare results and identify potential barriers to the implementation of GI schemes. Reflect on the relative merits and demerits of different interventions. ANALYTICAL STAGE.

  8. Answers? • What level of investment is required to simultaneously improve the condition of urban watercourses and reduce the carbon footprint of the system? How do GI solutions compare with conventional solutions? • Are there any significant trade-offs between objectives? • What type of GI solutions are more effective in delivering specific objectives in the large scale? And for specific urban development forms? • What barriers could potentially constrain the implementation of specific GI solutions? • Are there any additional benefits to be realised in the control-side of the system?

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