Suchergebnisse

When urban and environmental transformations occur in areas where the equilibrium between nature and culture is complex and fragile, public ad-ministrations could decide to induce private investments using several tools, such as financial contributions to those projects of refurbishment that better re-spect the purpose of improving the environmental quality and of preserving the local architecture. Multicriteria models may support public decision process re-garding this issue, but it is essential to adopt a scientific paradigm that provides a major theoretical reference. This study proposes the development of a net-work model based on the scientific paradigm by Rizzo and the Analytic Net-work Process. The first one has been chosen because of its interpretation of the city as autopoietic organization, dissipative structure and political-administrative system, the second one because of its holistic representation of the decision problem in which the interactions between all the elements are made explicit. The network model has been applied to a case study that consists in ranking some alternative refurbishments of buildings in Favignana (Egadi is-lands, Italy) in order to grant public financial contributions.

The paper synthesises and compares the results of a research carried out on the energy potential of the provinces of Enna and Syracuse from the perspective of wind energy production. The study highlighted some remarkable differences between the two provinces due to the different wind dynamics and the presence of the landscape characteristics. We propose a wide land planning tool including a section devoted to the calculation of the energy that can be produced by plants located in the permitted areas, an evaluative section devoted to the financial sustainability of the investments, and a section devoted to the landscape assessment due to the different intervisibility of the allowed plants, and a section devoted to the formalization of the decision making process. A set of GIS tools supports the mentioned sections in defining the pattern for the localization of the wind farms, and in measuring and featuring the visual impact.DOI: http://dx.medra.org/10.19254/LaborEst.10.13

The paper addresses an important long-standing question in regards to the energy efficiency renovation of existing buildings, in this case hotels, towards nearly zero-energy (nZEBs) status. The renovation of existing hotels to achieve a nearly zero-energy (nZEBs) performance is one of the forefront goals of EU's energy policy for 2050. The achievement of nZEBs target for hotels is necessary not only to comply with changing regulations and legislations, but also to foster competitiveness to secure new funding. Indeed, the nZEB hotel status allows for the reduction of operating costs and the increase of energy security, meeting the market and guests' expectations. Actually, there is not a set national value of nZEBs for hotels to be attained, despite the fact that hotels are among the most energy-intensive buildings. This paper presents the case study of the energy retrofit of an existing historical hotel located in southern Italy (Syracuse) in order to achieve nZEBs status. Starting from the energy audit, the paper proposes a step-by-step approach to nZEBs performance, with a perspective on the costs, in order to identify the most effective energy solutions. Such an approach allows useful insights regarding energy and economic–financial strategies for achieving nZEBs standards to highlighted. Moreover, the results of this paper provide, to stakeholders, useful information for quantifying the technical convenience and economic profitability to reach an nZEBs target in order to prevent the expenses necessary by future energy retrofit programs.

Part I. Valuation science. Judgement, value and truth -- Chapter 1. Issues and prospects of Valuation Science -- Chapter 2. Appraisal: some consideration from the past and a challenge for the future -- Chapter 3. Why foundations …? Evaluation as civic commitment -- Chapter 4. The Inextricability of Fact and Value -- Chapter 5. The Tip and the Bottom. What Makes an Estimate True? -- Chapter 6. Valuating valuations: the case of happiness as oikeiosis -- Chapter 7. Values and valuation -- Part II. Valuation and values: earth and the cities -- Chapter 8. The value creation in our "Regime d'historicitè" -- Chapter 9. Axiology of urban quality. The city as a functioning system -- Chapter 10. The great concentration. Demography, economy, real estate values and the development of Italian metropolitan cities. -- Chapter 11. The evaluation of Urban Commons, a few theoretical-methodological considerations -- Chapter 12. Social discount rate in balance between intergenerational solidarity and economic feasibility -- Chapter 13. Teaching Appraisal: remarks for optimization, etc.