Besio - Input2012


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Mariolina Besio on "SEA: methodological paths and functional efficiency for municipal urban planning"

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Besio - Input2012

  1. 1. 0 - SEA: methodological paths and functional efficiency formunicipality urban planning Summary 1 – Characteristics and peculiarity of SEA for Municipal Urban Plans 2 – Environmental knowledge construction, techniques and method 3 – Environmental assessment, tools and procedures 4 – Considerations about technical content and operative effectiveness
  2. 2. 1 - general consideration on Urban Plan of Genova Municipality SEA SOMMARIO Few axioms founding SEA formulation A) About urban municipality plan 1 – Municipal Urban Plans draw up a project of a possible world , respectful of public interest 2 – The project language is hybrid, joining the land use plan with transformations governing norms 3 –Environmental quality and sustainability are taken into consideration more frequently among public interest reasons, 4 – SEA introduces in Municipal Urban Plans environmental quality and sustainability considerations, producing information about the induced effects of transformations
  3. 3. 1 - general consideration on Urban Plan of Genova Municipality SEA B) About sustainability and environment 5 – Sustainable development concept is not univocal because the paths for sustainability are different: from those based on technological tools to those proposing new development models 6 – The meaning of environment is wide and diversified; the path for building environmental knowledge is not automatic and often is under-estimate
  4. 4. 2 SOMMARIO - environmental knowledge The environmental knowledge building approach has been followed to respond two requirements: 1 – to represent data, information and knowledge in geographical pattern, in order to compare them with transformations drawing for the plan’s land use 2 – to build different environmental knowledge, referring to different ontologies and using diversified concept categories (to analyze geographical territorial objects) and environmental sustainability meanings (to evaluate territorial transformations forecasted by plan): a) analytical knowledge of environmental sciences, related to single environmental factors b) synthetic knowledge of geographical sciences, referring to different environmental regions
  5. 5. 2 SOMMARIO - environmental knowledge In the first case, the following environmental factors have been assumed for: a) essential components of natural environment: atmosphere ( air ), hydrosphere ( water ), lithosphere ( soil ), biosphere ( vegetation ) b) most important anthropic pressure actions on essential components of natural environment: energetic use, electro-magnetic agents, wastes, traffic Moreover areas of significant historic and cultural value have been considered Collected data have been represented on environmental factors and historic and cultural value charts
  6. 6. 2 SOMMARIO - environmental knowledge In the second case, environmental contexts have been assumed as areas characterized by peculiar relations between natural environment and human interventions, describing specific territorial , environmental and landscape variations. They are: Coastal context Urban context Rural context Natural context The contexts a) have a specific identity (territorial, environmental and landscape) characterized by a peculiar diversity of the relationship between natural environment and anthropic interventions, b) represent geographical, ecological and environmental diversities inside the municipal territory.
  7. 7. 2 - outline of relations between environmental factors, territorialfactors and environmental context COMPONENTI AGENTI DI PRESSIONE VALORI AMBIENTALI contesto marittimo contesto urbano costiero contesto naturale contesto rurale DETERMINANTI PRESSIONI VALORI TERRITORIO URBANIZZATO
  8. 8. 2 - environmental knowledge Integration is a key word for environmental knowledge building • integration with foundation knowledge of municipality urban plan • integration to confront with land use plan language • integration of natural sciences analytical knowledge with geographical and territorial sciences synthetic knowledge • integration to get over epistemological differences between urban planning and environmental sciences about: – statutes – paradigms – parameters – values
  9. 9. 2 SOMMARIO outline between municipality plan and SEA - integration R E D AZ IO NE P UC P R O C E S S O DI INT E G R AZ IO NE E L AB O R AZ IO NE VAS C O NO S C E NZ A/ DE S C R IZ IO NE C O NO S C E NZ A/ DE S C R IZ IO NE Des c rizione F attori F ondativa Indic atori C ritic ità ambientali C onos c enz e ambientali O pportunità ambientali C ontes ti Ambientali Doc umento deg li P O L IT IC HE / O B IE T T IVI P O L IT IC HE / O B IE T T IVI obiettivi O B IE T T IV I DE L O B IE T T IV I DE L O B IE T T IVI P UC P UC O biettivi di AMB IE NT AL I P O L IT IC HE /O B IE T T IVI s os tenibilità S MAR T C IT Y ambientale S is tema di O B IE T T IV I DI O B IE T T IV I DI S O S T E NIB IL IT A’ O B IE T T IVI O B IE T T IVI pianific az ione S O S T E NIB IL IT A’ AMB IE NT A L I AMB IE NT A L I P AT T O DE I AMB IE NT AL E AMB IE NT AL E S O VR AO R DINAT I s ovraordinata P er G E NO V A P er G E NO V A S IND AC I S T R UT T UR A DE L P IANO S c hede S T R AT E G IE /S C E L T E S c enario s trateg ic o dis tretti s trutturale delle S T R AT E G IE / S C E L T E infras trutture di tras porto S c hede S c enario s trateg ic o munic ipi s trutturale delle tras formazioni urbane S c hede S c enario s trateg ic o c ontes ti s trutturale del verde P IANO S OS T E NIB IL E VAL UT AZ IONE MONIT O R AG G IO
  10. 10. 3 - environmental assessment In the SEA procedure, only documents with operative and project effectiveness have been considered and confronted with environmental knowledge: •normative documents •maps of transformations project forecasted by plan, reorganized according to three thematic scenarios: - the transport infrastructures network scenario - the urban transformations scenario - the green areas scenario
  11. 11. 3 - transport infrastructures network scenario
  12. 12. 3 - urban transformations scenario
  13. 13. 3 - green areas scenario
  14. 14. 3 - environmental assessment Environment has been assessed, ascribing to each phenomena analyzed categories and classes of values, depending on different environmental knowledge produced and refering to different sustainability objectives A) for environmental factors the objectives are: •energy consumption reduction •natural resources consumption reduction •pollution air, water and soil reduction •climatic change contrast •hydrogeological risk contrast •biodiversity protection
  15. 15. 3 - environmental assessment The environmental factors charts have been processed to assign opportunity or criticality values to those categories and classes of elements positive or negative for environmental sustainability assessment Two maps are created: • opportunity map • criticality map
  16. 16. 3 - criticality map
  17. 17. 3 - opportunity map
  18. 18. 3 - environmental assessment B) for environmental contexts the objectives are to propose a new alliance between "country" and "town" into the river basin eco-system to: closing vital cycles of urban metabolism controlling the cumulative effects of transformations projects forecasted by plan The contexts chart has been processed with the river basins and local municipalities maps to obtain the valleys sections chart − the civic unity chart
  19. 19. 3 - environmental contexts and river basins
  20. 20. 3 - environmental assessment For SEA procedure the GIS has been a fundamental tool: •to collect environmental knowledge, plan knowledge, structures and projects •to confront their geographical and spatial configuration •to analyze their topological relations •to monitor their evolution Using the GIS two fundamental assessment tools have been produced •The district card, to assess each area where the strategic transformations are forecasted by plan •The municipal card, to assess the comprehensive development project of each local municipality, resulting from all the transformations there forecasted by plan
  21. 21. 3 - district card
  22. 22. 3 - municipal card
  23. 23. 4 - conclusions A) considerations on technical contents •geographical and procedural tools have been produced to know and assess the environmental effects of transformations forecasted by plan •complex knowledge has been produced and represented in a synthetic way, using a lot of data arising from different sources •cognitive and assessment models have been utilized, referring to formal ontologies that facilitate the transparency of evaluation process •many actors having environmental roles and competence have been involved •models and procedures, implemented on the GIS, can be used independently from actual municipality plan structure and can be used for monitoring its changing
  24. 24. 4 - conclusions B) considerations on effectiveness and utility •The SEA procedure, without normative measures, risks to become a rhetoric exercise •The environmental improvement, started with the SEA procedure, should truly involve citizens, not only formally •Political engagement cannot be disregarded, if the SEA necessity and utility are not recognized, its effectiveness is null and void