Adaptation planning at different spatial scales

Transcription

1 Adaptation planning at different spatial scales Using TCPA Publication Adaptation by Design as the main source GerGerry Metcalf UKCIP

2 UKCIP

3 Key adaptation principles for planning UKCIP Seek opportunities to incorporate adaptation measures into new and existing developments Work in partnership with communities Incorporate flexibility to deal with changing risks Understand existing vulnerabilities to climate and identify critical thresholds Identify key climate risks using the latest climate change projections Adopt a sequential and risk-based approach to development decisions Review your strategy regularly

4 Key adaptation principles for planning UKCIP Do nothing this may be an appropriate response to low priority impacts or situations where climate risks are outweighed by nonclimate factors No regret options will deliver benefits that exceed their costs, whatever the extent of climate change Low regret low-cost options that have potentially large benefits in future Win-win options are ones that contribute to desired outcomes (be they environmental, social or economic), and also improve your ability to adapt to climate risks Avoid actions that will make it more difficult to cope with climate risks in the future

5 Adaptation planning at different spatial UKCIP scales Conurbation or catchment scale Offers opportunities for integrated approaches to adaptation covering a mix of land uses over large areas Neighbourhood scale Discrete groups of dwellings or mixed use buildings. Needs consideration of adapting the public realm and spaces between buildings Building scale Smaller developments and individual buildings. Needs consideration of design of the building, its surroundings and how it is used and managed

6 high temperatures Conurbation/catchment solar control - includes shading and building morphology increasing evaporative cooling green infrastructure use of open water and water features ground water cooling using aquifers or surface water cooling Neighbourhood cool or reflective building materials on roofs or facades cool pavement materials increasing ventilation through orientation and urban morphology Building building envelope insulation active or mechanical cooling thermal storage or thermal mass

7 high temperatures Conurbation/catchment solar control - includes shading and building morphology increasing evaporative cooling green infrastructure use of open water and water features ground water cooling using aquifers or surface water cooling

8 high temperatures Neighbourhood cool or reflective building materials on roofs or facades cool pavement materials increasing ventilation through orientation and urban morphology

9 high temperatures Building building envelope insulation active or mechanical cooling thermal storage or thermal mass

10 flood risks Conurbation/catchment diversion of flood flows away from vulnerable areas flood attenuation and temporary water storage, including use of green space source control, e.g. upland management permanent defences and hard barriers managed re-alignment SUDS Neighbourhood widening drains to increase capacity green space and roofs to reduce speed of runoff managing flood pathways to cope with heavy rainfall events secondary flood defences SUDS Building green roofs to reduce runoff speed managing flood pathways and removing pinch-points flood resilient measures, e.g. raising floor levels flood resilient materials removable household products

11 flood risks Conurbation/catchment diversion of flood flows away from vulnerable areas flood attenuation and temporary water storage, including use of green space source control, e.g. upland management permanent defences and hard barriers managed re-alignment SUDS

12 flood risks Neighbourhood widening drains to increase capacity green space and roofs to reduce speed of runoff managing flood pathways to cope with heavy rainfall events secondary flood defences SUDS

13 flood risks Building green roofs to reduce runoff speed managing flood pathways and removing pinch-points flood resilient measures, e.g. raising floor levels flood resilient materials removable household products

14 water resources and quality Conurbation/catchment creative use of wastewater abstraction controls and licensing greater use of separate surface and foul water drainage systems effective storm overflow management tighter water efficiency standards upland and lowland reservoirs Neighbourhood rainwater harvesting and storage grey water recycling low water demand planting for green spaces effective storm overflow management managing point source pollution SUDS Building rainwater harvesting and storage grey water recycling Water efficient fixtures and fittings SUDS

15 water resources and quality Conurbation/catchment creative use of wastewater abstraction controls and licensing greater use of separate surface and foul water drainage systems effective storm overflow management tighter water efficiency standards upland and lowland reservoirs

16 water resources and quality Neighbourhood rainwater harvesting and storage grey water recycling low water demand planting for green spaces effective storm overflow management managing point source pollution SUDS

17 water resources and quality Building rainwater harvesting and storage grey water recycling Water efficient fixtures and fittings SUDS

18 ground conditions Conurbation/catchment development of coastal evolution and landslide risk maps development of risk assessment methodologies strategic monitoring to assess land use management e.g. vegetative slopes managed realignment Neighbourhood structural changes and improvements to surface protection re-grading and reinforcing slopes vegetation management surface erosion controls improved retaining structures improved drainage and maintenance SUDS Building improved building foundations underpinning into more stable soils vegetation management infill of foundations re-grading and reinforcing slopes retaining walls with drainage to reduce risks of erosion SUDS

19 ground conditions Conurbation/catchment development of coastal evolution and landslide risk maps development of risk assessment methodologies strategic monitoring to assess land use management e.g. vegetative slopes managed realignment

20 ground conditions Neighbourhood structural changes and improvements to surface protection re-grading and reinforcing slopes vegetation management surface erosion controls improved retaining structures improved drainage and maintenance SUDS

21 ground conditions Building improved building foundations underpinning into more stable soils vegetation management infill of foundations re-grading and reinforcing slopes retaining walls with drainage to reduce risks of erosion SUDS

22 Adaptation planning at different spatial scales WORKSHOP Gerry Gerry Metcalf UKCIP

23 Adaptation planning at different spatial UKCIP scales Conurbation or catchment scale Offers opportunities for integrated approaches to adaptation covering a mix of land uses over large areas Neighbourhood scale Discrete groups of dwellings or mixed use buildings. Needs consideration of adapting the public realm and spaces between buildings Building scale Smaller developments and individual buildings. Needs consideration of design of the building, its surroundings and how it is used and managed

24 high temperatures Conurbation/catchment solar control - includes shading and building morphology increasing evaporative cooling green infrastructure use of open water and water features ground water cooling using aquifers or surface water cooling

25 high temperatures Neighbourhood cool or reflective building materials on roofs or facades cool pavement materials increasing ventilation through orientation and urban morphology

26 high temperatures Building building envelope insulation active or mechanical cooling thermal storage or thermal mass

27 flood risks Conurbation/catchment diversion of flood flows away from vulnerable areas flood attenuation and temporary water storage, including use of green space source control, e.g. upland management permanent defences and hard barriers managed re-alignment SUDS

28 flood risks Neighbourhood widening drains to increase capacity green space and roofs to reduce speed of runoff managing flood pathways to cope with heavy rainfall events secondary flood defences SUDS

29 flood risks Building green roofs to reduce runoff speed managing flood pathways and removing pinch-points flood resilient measures, e.g. raising floor levels flood resilient materials removable household products

30 water resources and quality Conurbation/catchment creative use of wastewater abstraction controls and licensing greater use of separate surface and foul water drainage systems effective storm overflow management tighter water efficiency standards upland and lowland reservoirs

31 water resources and quality Neighbourhood rainwater harvesting and storage grey water recycling low water demand planting for green spaces effective storm overflow management managing point source pollution SUDS

32 water resources and quality Building rainwater harvesting and storage grey water recycling Water efficient fixtures and fittings SUDS

33 water resources and quality Conurbation/catchment creative use of wastewater abstraction controls and licensing greater use of separate surface and foul water drainage systems effective storm overflow management tighter water efficiency standards upland and lowland reservoirs

34 water resources and quality Neighbourhood rainwater harvesting and storage grey water recycling low water demand planting for green spaces effective storm overflow management managing point source pollution SUDS

35 water resources and quality Building rainwater harvesting and storage grey water recycling Water efficient fixtures and fittings SUDS

36 Adaptation planning at different spatial UKCIP scales Levers, influence and policies We have identified some of the physical adaptation strategies that might be deployed in response to different climatic conditions We will now consider the mechanisms available to spatial planners to encourage or require such adaptations to be implemented. Working in table groups consider the adaptation responses indicated on each slide, discuss implications for policy and DC. and suggest ways in which they could be encouraged.

37 SUDS and Green infrastructure

38 SUDS Sustainable drainage systems UKCIP Some key principles storing runoff and releasing it slowly (attenuation) allowing water to soak into the ground (infiltration) Slowly transporting (conveying) water on the surface filtering out pollutants allowing sediments to settle out by controlling the flow of the water Source:

39 Guidance on SUDS UKCIP Planning for SuDS making it happen CIRIA C687

40 UKCIP

41 UKCIP

42 UKCIP

43 UKCIP

44 Green infrastructure UKCIP

45 Connections between natural interventions UKCIP and social, economic and biodiversity benefits

46 UKCIP

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