1,721,025 research outputs found

    Nuovi modelli per nuova ricchezza: Corviale a Roma - New models for new wealth: Corviale in Rome

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    The definition of a finalized program for the conversion of a degraded urban contest is a complex operation which must take in to account various aspects (technicalaesthetic, environmental, social, economic-financial and procedural); the feasibility of a salvaged operation is strictly dependant on financial and economic benefits originated by a reconversion program which made of sustainable and compatibility its referent assets. “Real “wealth can be made if the process of settled transformation born from program /project produces positive plusvalency and exteriority. The 61 area plan (PdZ) “Corviale” in Rome concerns an area of around 70 hectares, on which lies a town building of 960 meters built to host more than 6000 inhabitants, made of housing of public estate with an autonomous equipment of community services, expression of the modern theories on the housing unity and on the linear town, which is today the symbol of urban degradation which interests both the architectonic and social bounds. Today “Corviale” is no longer suitable to satisfy the settlement needs together with today life standards, therefore “Corviale” has to be reconsidered. The area on which lies, semi-central on the territory of Rome, is highly strategic under both the infrastructure and environmental profile and in theory it would present strong remarks in the market but inhibited by the lacks due to the physics conformation of the urban space and of the buildings. Giving back urban quality to “Corviale”, providing a partial introduction into the market of re-qualified estates (houses and services), it could create profits which make the operation sustainable from the financial and economic point of view. To reach the above is right to carry out a choice between two re-qualified hypothesis, one of demolition and the other one of recovery. We recognize technical problems for the demolition hypothesis, environmental and of costs tied to the materials selling off, therefore we intend to verify the feasibility of the intervention of re-conversion of the existent suggesting a settled model, which grants a recognition to the building connected to the integration between anthropic and natural sphere. The financial support must be fastened with the one environmental. The building can be transformed through the experimentation of new settled models and the use of technicalinstallation solutions which will allow of giving a new asset and of making autonomous at an energetic level the building solving the problems of an architectural and social character (ending bridges, inefficiency of installations), in the mixture of the new and old consumers to whom the building is addressed

    Qualità del processo e qualità architettonica:una metodologia di valutazione perridisegnare Tor Bella Monaca a Roma (RM)

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    these accommodations arepartly public (70%) and partly private (30%) with autonomous facilitiesfor public services. The PdZ 23 TBM was an attempt to express themodern theories on housing schemes. Yet nowadays it is the symbol inRome of urban blight from architectural, environmental, and social pointsof view. Today, “Tor Bella Monaca” is no longer suitable to meet thehousing needs, in compliance with the current living standards. The areawhere TBM is situated has to be improved in terms of landscape andenvironment: it needs therefore to be rethought.Life in Tor Bella Monaca is affected by urban decay and social distresswhich prompted the local administration to promote a program ofdemolition and reconstruction of this neighbourhood (widespreadsettlement pattern). Assessments should be based on the impacts ofsuch measures envisaged on the “urban fabric”, including alternativemodels of rehabilitation (“concentrated settlement pattern”).To support decision-makers towards sustainable and shared decisions,an evaluation model with particular attention for the importance ofcomponents such as environment and landscape will be applied.With the support of a multi-criteria model (Analytic Hierarchy Process),the outcome (positive or negative) will be evaluated for each alternativewith reference to the stakeholders’ views. This model will outline the most commonly held view for the redevelopment.A careful evaluation of the impacts of the proposed alternatives, which focuses on environment and landscape criteria, is the first step towardsthe choice of a virtual renewal model.; ABSTRACT - The definition of a program for the reconversion of a degraded urban context is a complex operation. It must take into account various environmental, landscaping, technical-aesthetic, social, economic-financial and procedural factors. The feasibility of a recovery operation is strictly dependant on impacts (both positive and negative)originated by a reconversion program which makes of the environment,landscaping, sustainability and compatibility its principal assets.The area plan (PdZ 23) “Tor Bella Monaca” (TBM), built in Rome in theearly '80s is a district of around 78 hectares, 2.000.000 mc built toaccommodate more than 28.000 inhabitant

    Valutazioni per la fattibilità del progetto Portus-Ostia Antica. In Rossi P.O., Carpenzano O, (a cura di), Roma tra il fiume, il bosco e il mare

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    Roma tra il fiume, il bosco e il mare è quel settore della città compreso tra il Raccordo anulare e il Tirreno che si sviluppa lungo il corso inferiore del Tevere e ha come margine orientale il grande sistema boscato costituito dalla Pineta di Castelfusano e dalla Tenuta di Castelporziano. È una Roma meno conosciuta ma dotata di caratteri ambientali peculiari che permettono ancora di ipotizzare una diversa concezione della città attraverso la quale rispondere ad una delle grandi sfide della modernità coniugando progetto urbano, paesaggio ed ecologia e configurando nuove reti infrastrutturali e ambientali. Il suo territorio è caratterizzato da straordinarie preesistenze archeologiche (le aree di Portus e di Ostia Antica) e da sistemi naturalistici caratterizzati dai paesaggi dell’acqua legati al fiume e alle opere di bonifica attuate tra il 1888 e gli anni Trenta del Novecento; è però anche disseminato di paesaggi-scoria, veri e propri sottoprodotti dello sprawl e di un’urbanizzazione rapida e incontrollata

    Select the most economically advantageus tenders in public works contracts: MCDA models and MACBETH used to analysis and comparison using a case study

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    In Member States Directive 2004/18/EC of the European Parliament and of the Council of 31 March 2004 on the coordination of procedures for the award of public works contracts, public supply contracts and public service contracts, (2004/18/EC), provides that the commissioning body may base the choice of contractor of public works on two award criteria:•The lowest price; •The most economically advantageous tender. In Italy the Code of Public Contracts for works, services and supplies, Legislative Decree No 163 of 2006 and subsequent amendments (Legislative Decree No 163/2006) and its implementing decree, Presidential Decree No 207 of 2010 (P.D. 207/2010),) have transposed the requirements of 2004/18/EC. Legislative Decree No 163/2006, in accordance with european legislation, provides that decision by the commissioning body about award criteria must be made by applying the criteria and objectives, and by ensuring compliance with the principles of transparency, non-discrimination and competition. In order to rank the different tenders for the award of public works contracts using the criterion of the most economically advantageous tender, Legislative Decree No 163/2006 and P.D. No 207/2010 require the use of a Multicriteria Decision Analysis (MCDA) model. The P.D. No 207/2010 suggests to use one of five MCDA models: Weighted Sum Model (WSM); Analytic Hierarchy Process (AHP); ELimination Et Choix Traduisant la REalité (ELECTRE); EVAluation of MIXed criteria (EVAMIX); Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS).But the possibility of using any of the methods to be found in scientific literature is also indicated. The aim of the text is to propose the application of a new MCDA model: the Measuring Attractiveness by a Categorical Based Evaluation TecHnique (MACBETH, Bana e Costa, Vansnick, 1994) has not yet been applied in the approximate evaluative field, in verifying either similarities/differences with other MCDA methods suggested by Italian legislation, or with reference to a case study, the advantages/disadvantages arising from the operational application of different MCDA methods considered

    Include Macbeth in the MCDA Models Suggested by Italian Legislation for the Selection of the Most Economically Advantageous Tender in Contracts for Public Works. Comparison and Application of MCDA Model to a Case Study

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    Directive 2004/18/EC of the European Parliament and of the Council of 31 March 2004 on the coordination of procedures for the award of public works contracts, public supply contracts and public service contracts, (2004/18/EC), provides that in Member States the commissioning body may base the choice of contractor on two award criteria: 1) the lowest price, where only the economic aspect is evaluated; 2) the most economically advantageous tender, where a number of factors are evaluated. In Italy, the 2004/18/EC directive has been adopted by the Code of Public Contracts for works, services and supplies, Legislative Decree No 163 of 2006 and subsequent amendments (Legislative Decree No 163/2006) and its implementing decree, Presidential Decree No 207 of 2010 (P.D. 207/2010), which, in accordance with European case law, indicate complete equivalence between the two award criteria. In accordance with the 2004/18/EC directive, Italian legislation provides that, between the two award criteria, the commissioning body must choose the most appropriate one depending on the nature of the contract. This decision by the commissioning body must be made by applying the criteria and objectives, and by ensuring compliance with the principles of transparency, non- discrimination and competition. In order to rank the different tenders for the award of public works contracts using the criterion of the most economically advantageous tender, Legislative Decree No 163/2006 and P.D. No 207/2010 require the use of a Multicriteria Decision Analysis (MCDA) model. Five MCDA models are suggested: Weighted Sum Model (WSM, Einhorn and McCoach, 1977); Analytic Hierarchy Process (AHP, Saaty, 1977); ELimination Et Choix Traduisant la REalité (ELECTRE, Roy, 1968); EV Aluation of MIXed criteria (EVAMIX, Voogd, 1982); Technique for Order of Preference by Similarity to Ideal Solution (Topsis, Hwang and Yoon, 1981). But the possibility of using any of the methods to be found in scientific literature is also indicated. The aim of the text is to propose the application of a new MCDA model: the Measuring Attractiveness by a Categorical Based Evaluation TecHnique (MACBETH, Bana e Costa, Vansnick, 1994) has not yet been applied in the approximate evaluative field, in verifying either similarities/differences with other MCDA methods suggested by Italian legislation, or with reference to a case study, the advantages/disadvantages arising from the operational application of different MCDA methods considere

    A methodology for determining the profitability index of real estate initiatives involving public-private partnerships. A case study: The integrated intervention programs in Rome

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    In the European Union, real estate initiatives involving public-private partnerships (PPPs) are characterized by the payment of a charge, which is generally used for public purposes (and works). In Italy, since the 1990s, PPPs have also been used to start negotiated initiatives giving the possibility of modifying town planning forecasts. Such initiatives are aimed at increasing the value of private properties and, through the charge, financing public works. This charge was regulated only in 2014 with the change of Article 16, paragraph 4, point d-ter of the Presidential Decree 380/2001 (Consolidated building law) and was named the "extraordinary urbanization contribution" (or simply the "extraordinary contribution"). The extraordinary contribution makes it possible to finance public works with private monetary resources. The amount of the extraordinary contribution is not less than 50% of the capital gain that is produced by real estate initiatives concerning modifications to town planning forecasts. A crucial issue of the this kind of PPPs has always been the appraisal of the capital gain of real estate initiatives due to changes in town planning forecasts. The factors to be considered while evaluating the extraordinary contribution, the appraisal tools and procedures to be used in assessing the capital gain are not indicated at regulatory level. However, an over 20 years' practice has been consolidating the use of an analytical procedure for the appraisal of the transformation value to be used in evaluating the extraordinary contribution. In this procedure, the evaluation of the profitability index of real estate initiatives appears critical: in fact, the capital gain depends upon this element. At the same time, this topic is substantially neglected by the scientific debate. In this paper, a methodology has been defined, which is structured on the Build-Up Method and allows the profitability index (or rate of return) of a real estate initiative to be evaluated. Through a test, the developed methodology has been used in a case study: the appraisal of the extraordinary contribution in three integrated intervention programs in the city of Rome

    Benchmarking multi-criteria evaluation methodology’s application for the definition of benchmarks in a negotiation-type public-private partnership. A case of study: the integrated action programmes of the Lazio Region

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    The growing scarcity of public financial in Italy, in opposition of the more significant problems of degradation of many urban areas, prompted the Legislature to standardise new processes of settlement transformation based on negotiation-type public-private partnerships (PPPN). However, these standards have not provided for benchmarks referring to the contents of partnerships or assessment procedures aimed at assessing the initiatives undertaken with respect to public utility objectives. This has often led to redevelopment initiatives geared more towards the satisfaction of private rather than public interests. The proposed methodology, structured on the integration of a benchmarking process with multi-criteria evaluation techniques known as benchmarking multi-criteria evaluation (BME) enables the definition of benchmarks through a participatory process of the different stakeholders involved in a PPPN to which the BME is applied. In order to verify the applicability of the proposed procedure, it has been applied to a type of PPPN: the integrated action programmes (PII) in the Lazio Region. The benchmarks can be used by Lazio’s administrators both for renewing the planning of the PII concerned and for verifying the quality of the initiatives within the same PPPN proces

    Application of a Multi-criteria and Participated Evaluation Procedure to Select Typology of Intervention to Redevelop Degraded Urban Area

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    Through urban redevelopment of a degraded area, the deficiency in urban planning and/or building developments can be remedied, allowing for the flourishing of activities that can provide economic stimulus while improving the living conditions of citizens; in this way the local economy can be relaunched. Evaluation methodologies and procedures can contribute to steering the choices made by Public Administration (PA) in creating programmes and hypothesis of intervention that may be considered sustainable and shared by stakeholders. The text proposes the application of an evaluation procedure (Capanne area in Terracina, Latina, Lazio Region), based on the integrated use of a Multi-Criteria Analysis technique - the Analytic Hierarchy Process, as well as a technique promoting participation and interaction among stakeholders, the Stakeholders Analysis. The evaluation procedure can be used to support the PA to make the decision related to the best type of hypothesis of intervention among those possible: the decision must be taken on the basis of identified Stakeholders' needs and available resources, in order to further exploit the unexpressed potential of the intervention area. The structural elements of the evaluation procedure are aligned to article 1 of the "Prime Ministerial Decree" regarding ‘Projects for the social and cultural regeneration of decaying urban areas’ (15 October 2015) in order to identify the type of intervention allowable for financing provided in the Decree
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