Agent-based model and Geographic Information System (GIS): an integrated approach to test sustainable policies and urban transformation scenarios

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The Economic Evaluation of Projects as a Structuring Discipline of Learning Processes to Support Decision-Making in Sustainable Urban Transformations

This paper is based on the following research questions: i) In which way could the discipline Economic Evaluation of Projects contribute to conveying the sustainability concept in urban settings among master’s degree students? What are the methods/techniques that can support decision processes of sustainable urban transformation? In response to the two research questions, the paper proposes a multi-methodological framework as a design tool for students (future professionals) aimed at representing the decision problem from a sustainable planning perspective. Through a Problem-Based Learning approach based on a case study, the proposed framework considers: SWOT Analysis, Stakeholder Analysis (SA), Multicriteria Analysis (MCDA), Cash Flow Analysis (CFA), and the application of the Neighborhood Sustainability Assessment Tools (NSATools). The multi-methodological framework has been applied to an experimental teaching case study as part of the Economic Evaluation of Projects module demonstrating its effectiveness in terms of sustainable spatial planning and structuring of the decision process from a multi-actor perspective. Future directions of the research are aimed at tackling two major limitations of the multi-methodological framework as the need to closely reflect a real decision process through an iterative framework and the sometimes hard interpretation of some elements of urban sustainability

Unpacking SDG target 11.a: What is it about and how to measure its progress?

The pivotal role that urbanisation plays in global development trajectories is clearly acknowledged by the United Nations 2030 Agenda that, among its 17 Sustainable Development Goals, explicitly argues in favour of cities and human settlements to be more inclusive, safe, resilient and sustainable (SDG11). Whereas SDG11 targets are paired with one or more indicators to monitor their achievement, in some cases this process is not straightforward. In particular, when it comes to Target 11.a Support positive economic, social and environmental links between urban, peri-urban and rural areas by strengthening national and regional development planning, the identified indicator does not seem able to grasp the complexity of national and regional governance, policy and planning. With the aim to contribute to this concern, the paper conceptually discusses the contents and implications of the SDG11 target 11.a. On this basis, it develops a multi-dimensional set of indicators to assess the quality of spatial governance and planning in a given context, and divides them into three main categories: (i) procedural indicators, (ii) instrumental indicators and (iii) financial indicators. The result of this work is a toolbox that may support decision-makers and policy-makers in assessing the quality of the efforts they put in place to make their cities and territories more sustainable as well as to reflect on what measures and initiatives could make this action more effective

Supporting Policy Design for the Diffusion of Cleaner Technologies: A Spatial Empirical Agent-Based Model

Renewable energy resources and energy-efficient technologies, as well as building retrofitting, are only some of the possible strategies that can achieve more sustainable cities and reduce greenhouse gas emissions. Subsidies and incentives are often provided by governments to increase the number of people adopting these sustainable energy efficiency actions. However, actual sales of green products are currently not as high as would be desired. The present paper applies a hybrid agent-based model (ABM) integrated with a Geographic Information System (GIS) to simulate a complex socio-economic-architectural adaptive system to study the temporal diffusion and the willingness of inhabitants to adopt photovoltaic (PV) systems. The San Salvario neighborhood in Turin (Italy) is used as an exemplary case study for testing consumer behavior associated with this technology, integrating social network theories, opinion formation dynamics and an adaptation of the theory of planned behavior (TPB). Data/characteristics for both buildings and people are explicitly spatialized with the level of detail at the block scale. Particular attention is given to the comparison of the policy mix for supporting decision-makers and policymakers in the definition of the most efficient strategies for achieving a long-term vision of sustainable development. Both variables and outcomes accuracy of the model are validated with historical real-world data

Sustainable Cities: A Reflection on Potentialities and Limits based on Existing Eco-Districts in Europe

The need for more sustainable cities has become a primary objective of urban strategies. The urgency for a radical transition towards sustainability in a long term-vision has brought with it several new concepts, such as smart urbanism, and models, such as smart city, eco-city, sustainable neighborhood, eco-district, etc. While these terms are fascinating and visionary, they often lack a clear definition both in terms of theoretical insight and empirical evidence. In this light, this contribution aims at defining a conceptual framework through which to further substantiate the blurred concept of eco-district and sustainable neighborhood. It does so by reviewing the concepts of smart urbanism and sustainable neighborhood/eco-districts in the literature, including also references to other well-known sustainability-oriented models of urban development. It then explores whether several indicators, emerging from the analysis of exemplary case studies of sustainable neighborhoods in Europe, can be used to clearly identify the characteristics of a sustainable approach at the district scale. The analysis, built on a review of existing literature, allows for both the clarification of several issues related to these fields of inquiry, as well as for the identification of the potential bridges to link these issues

The reintroduction of Castor fiber in Piedmont (Italy): An integrated SWOT-spatial multicriteria based approach for the analysis of suitability scenarios

Abstract The Castor fiber or Eurasian beaver can change its habitat by building dams and creating ponds. For this reason, Castor fiber is known as an "ecosystem engineer" for aquatic and riparian environments. Despite its ecological importance, at the beginning of the 20th century the population was reduced to only 1200 beavers in Europe and Asia, due to uncontrolled hunting. Recently, some reintroductions and translocations have partly re-established the population. In Italy, however, the beaver disappeared in the 16th century and no action has been taken despite the recommendation of the Council of Europe to perform a feasibility study. This research evaluates beaver reintroduction and identifies suitable areas in Italy and, in particular, in the Piedmont region. In order to achieve this, a SWOT analysis combined with a Spatial Multicriteria Analysis was performed. Firstly, the zoological and ethological aspects concerning this rodent were studied, as well as the historical reasons that led to its disappearance in Italy and near extinction in Eurasia. Secondly, Strengths, Weaknesses, Opportunities and Threats (SWOT) of the territory were identified for beaver reintroduction. The SWOT analysis was implemented, as the starting point for the spatial multicriteria analysis. Thirdly, the Multicriteria Spatial Decision Support System (MC-SDSS) was structured into two criteria, i.e. Potentials and Criticalities, representing the spatialization of strengths and weaknesses. The final result of the MC-SDSS is a map showing suitable areas for beaver reintroduction in Piedmont. This map is the weighted sum of the maps of criticalities and potentialities, performed through a set of GIS operations and weighted through a pairwise comparison of criteria by experts. The analysis was conducted for the Piedmont region, but the integrated approach and the set of criteria can also be applied in other regions. Moreover, this mixed-method approach takes into account the characteristics necessary for the choice of suitable beaver habitats and also includes economic and social aspects. Therefore, it is an improvement on the Habitat Suitability Index (HIS), generally used in reintroductions. The aspects considered in the analysis are fundamental for the future development of a shared action plan, which considers both technical and social motivations and acts for the long-term on a wide area

Evaluation of Ecosystem Services in Mining Basins: An Application in the Piedmont Region (Italy)

Mining activities impact on the territorial system in various ways, affecting its environmental and socio-economic components. Specific evaluation tools can support decision-making processes in the context of the sustainable planning and management of mining activities. Within the evaluation procedures of mining activities, a growing interest in the analysis of Ecosystem Services (ES) is emerging. ES refer to the benefits that the natural system delivers to society, linking the health of ecosystems and human well-being. Starting from a real-world case related to the adoption of the Regional Plan of Mining Activities (PRAE) of the Piedmont region (Northern Italy), the paper aims to explore the ES valuation by considering three different mining quarries. The state of the art of the basins is compared with alternative planning scenarios from the point of view of the ES produced. The valuation is developed through GIS and the Simulsoil software, detecting the biophysical benefits produced and estimating their economic performance. The simulation results can be used to support the formulation of planning strategies, estimating the trade-offs in terms of competitive land-use values. The study also demonstrates that the integration of ES into Strategic Environmental Assessment (SEA) can produce a comprehensive impact assessment of a mining project, guaranteeing the protection and valorisation of the environmental system

Waterborne outbreak of Norwalk-like virus gastroenteritis at a tourist resort, Italy.

In July 2000, an outbreak of gastroenteritis occurred at a tourist resort in the Gulf of Taranto in southern Italy. Illness in 344 people, 69 of whom were staff members, met the case definition. Norwalk-like virus (NLV) was found in 22 of 28 stool specimens tested. The source of illness was likely contaminated drinking water, as environmental inspection identified a breakdown in the resort water system and tap water samples were contaminated with fecal bacteria. Attack rates were increased (51.4%) in staff members involved in water sports. Relative risks were significant only for exposure to beach showers and consuming drinks with ice. Although Italy has no surveillance system for nonbacterial gastroenteritis, no outbreak caused by NLV has been described previously in the country

Integrazione tra GIS e approcci multicriteria per l’individuazione del sito di una struttura ospedaliera

Il presente testo illustra il contributo fornito dai Multicriteria-Spatial Decision Support Systems (MC-SDSS) nella risoluzione di problemi complessi di natura territoriale e urbana. Il metodo nasce dall’integrazione dei Geographic Information Systems (GIS) e le tecniche Multicriteria Decision Analysis (MCDA), la cui combinazione determina l’introduzione dell’esplicita considerazione della dimensione spaziale dei problemi decisionali. In modo particolare si intende evidenziare il ruolo svolto dallo strumento GIS nella risoluzione del problema localizzativo del progetto ospedaliero “Parco della Salute” per la Città Metropolitana di Torino

VALUTARE I BENEFICI DEI SERVIZI ECOSISTEMICI URBANI: UNA PROPOSTA METOLOGICA

The notions of Ecosystem Services (ES) and Nature-Based Solutions (NBS) reveal the strategic importance of natural capital in the requalification and transitioning of cities. More in detail, ES have been analyzed and categorized by the Millennium Ecosystem Assessment in 2005. On the other hand, the implementation of NBSs is suggested by the most important international frameworks. This interest becomes relevant to respond to the multifaceted pressures that cities and societies have to face, highlighting the crucial importance of public places. Therefore, green policies could provide a solution to the current concerns about both the built and natural environments. Using an ES approach and implementing NBS can provide different types of interventions in cities, ranging from extended green areas to green roofs, that should contribute to the improvements of residents quality of life and general wellness. The main task of this contribution is assessing green roofs from an ecosystem viewpoint, considering the evidence of their advantages for human welfare, their capacity to mitigate climate change, and their potential to protect biodiversity. For this purpose, an integrated evaluation model is suggested to enable decision makers (DMs) to design measures that might improve the quality of life in cities and to consider the many aspects of value in the study of ecosystem services (ES)