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Osvaldo Gervasi; Beniamino Murgante; Sanjay Misra; Chiara Garau; Ivan Blečić; David Taniar; Bernady O. Apduhan; Ana Maria A. C. Rocha; Eufemia Tarantino; Carmelo Maria Torre; Yeliz Karaca. Correction to: Computational Science and Its Applications – ICCSA 2020. Computers and Games 2021, 12249, C1 -C1.
AMA StyleOsvaldo Gervasi, Beniamino Murgante, Sanjay Misra, Chiara Garau, Ivan Blečić, David Taniar, Bernady O. Apduhan, Ana Maria A. C. Rocha, Eufemia Tarantino, Carmelo Maria Torre, Yeliz Karaca. Correction to: Computational Science and Its Applications – ICCSA 2020. Computers and Games. 2021; 12249 ():C1-C1.
Chicago/Turabian StyleOsvaldo Gervasi; Beniamino Murgante; Sanjay Misra; Chiara Garau; Ivan Blečić; David Taniar; Bernady O. Apduhan; Ana Maria A. C. Rocha; Eufemia Tarantino; Carmelo Maria Torre; Yeliz Karaca. 2021. "Correction to: Computational Science and Its Applications – ICCSA 2020." Computers and Games 12249, no. : C1-C1.
Urban Public Green Spaces (UPGS) available at walking distance are a vital component of urban quality of life, of citizens’ health, and ultimately of the right to the city. Their demand has suddenly become even more ostensive due to the measures of “social distancing” and the restrictions of movement imposed in many countries during the COVID-19 outbreak, showing the importance of the public urban parks and green open spaces located near homes and accessible by foot. Hence, the idea of “green self-sufficiency” at the local, neighbourhood and sub-neighbourhood level has emerged as a relevant objective to pursue. For this purpose, we have constructed a high-fidelity evaluation model to assess the walking accessibility of UPGS at the highly granular spatial scale of street network nodes. The evaluation procedure is based on a novel index constructed around the concept of distance-cumulative deficit, scoring nodes with respect to all the available UPGS within their catchment area of slope-corrected walking distance of 2 km. To showcase the possible outputs of the evaluation procedure and their exploratory analyses, we present an application on the city of Cagliari, Italy. In doing that, we argue that the proposed evaluation approach is an advancement over the traditional (density-based) approaches of assessment of green area availability, and that it provides an intuitive, flexible and extendable tool useful to better evaluate and understand the current and the potential accessibility of urban green space, and to support urban planning, policy making and design.
Ivan Blečić; Valeria Saiu; Giuseppe A. Trunfio. Towards a High-Fidelity Assessment of Urban Green Spaces Walking Accessibility. Transactions on Petri Nets and Other Models of Concurrency XV 2020, 12252, 535 -549.
AMA StyleIvan Blečić, Valeria Saiu, Giuseppe A. Trunfio. Towards a High-Fidelity Assessment of Urban Green Spaces Walking Accessibility. Transactions on Petri Nets and Other Models of Concurrency XV. 2020; 12252 ():535-549.
Chicago/Turabian StyleIvan Blečić; Valeria Saiu; Giuseppe A. Trunfio. 2020. "Towards a High-Fidelity Assessment of Urban Green Spaces Walking Accessibility." Transactions on Petri Nets and Other Models of Concurrency XV 12252, no. : 535-549.
We construct a method to evaluate the neighbourhood park vitality potential (NPV-potential), inspired by Jane Jacobs’s theory of urban and park vitality. The evaluation model produces an aggregate score of NPV-potential by combining information on the extrinsic factors of vitality, related to the park’s surrounding urban area, with evaluative judgements on the intrinsic factors, related to the park’s internal organization and design. To showcase and submit the evaluation model to a preliminary test drive, we further present the results of an application on three parks in the city of Cagliari, Italy. The computed NPV-potential and the effective use of the three parks, obtained from direct observation, show a good degree of agreement. While far from a robust validation, which would require more extensive empirical studies with larger and more internally variable samples of parks, the reported agreement between the potential and the observed vitality on the ground is a preliminary indication of the possible usefulness of the proposed evaluation method for urban planning and design.
Federica Banchiero; Ivan Blečić; Valeria Saiu; Giuseppe A. Trunfio. Neighbourhood Park Vitality Potential: from Jane Jacobs’s Theory to Evaluation Model. Sustainability 2020, 12, 5881 .
AMA StyleFederica Banchiero, Ivan Blečić, Valeria Saiu, Giuseppe A. Trunfio. Neighbourhood Park Vitality Potential: from Jane Jacobs’s Theory to Evaluation Model. Sustainability. 2020; 12 (15):5881.
Chicago/Turabian StyleFederica Banchiero; Ivan Blečić; Valeria Saiu; Giuseppe A. Trunfio. 2020. "Neighbourhood Park Vitality Potential: from Jane Jacobs’s Theory to Evaluation Model." Sustainability 12, no. 15: 5881.
We present a survey of operational methods for walkability analysis and evaluation, which we hold show promise as decision-support tools for sustainability-oriented planning and urban design. An initial overview of the literature revealed a subdivision of walkability studies into three main lines of research: transport and land use, urban health, and livable cities. A further selection of articles from the Scopus and Web of Science databases focused on scientific papers that deal with walkability evaluation methods and their suitability as planning and decision-support tools. This led to the definition of a taxonomy to systematize and compare the methods with regard to factors of walkability, scale of analysis, attention on profiling, aggregation methods, spatialization and sources of data used for calibration and validation. The proposed systematization aspires to offer to non-specialist but competent urban analysts a guide and an orienteering, to help them integrate walkability analysis and evaluation into their research and practice.
Ivan Blečić; Tanja Congiu; Giovanna Fancello; Giuseppe Andrea Trunfio. Planning and Design Support Tools for Walkability: A Guide for Urban Analysts. Sustainability 2020, 12, 4405 .
AMA StyleIvan Blečić, Tanja Congiu, Giovanna Fancello, Giuseppe Andrea Trunfio. Planning and Design Support Tools for Walkability: A Guide for Urban Analysts. Sustainability. 2020; 12 (11):4405.
Chicago/Turabian StyleIvan Blečić; Tanja Congiu; Giovanna Fancello; Giuseppe Andrea Trunfio. 2020. "Planning and Design Support Tools for Walkability: A Guide for Urban Analysts." Sustainability 12, no. 11: 4405.
This study compares a service-based and environmental evaluation of an urban area with that of its perceived walkability. The Pampulha region in Belo Horizonte, Brazil was first put through a multi-criteria spatial evaluation with respect to a set of spatial data considered relevant for liveability and quality of life in cities, and was subsequently assessed in terms of perceived walkability (using a machine learning procedure of a training set provided by local auditors). The two types of analysis were compared and qualitatively aggregated to obtain a joint spatial score of the urban environment. The findings provide useful insights for planning and urban policy.
Ivan Blečić; Alessandra G. Santos; Ana Clara Moura; Giuseppe A. Trunfio. Multi-criteria Evaluation vs Perceived Urban Quality: An Exploratory Comparison. Transactions on Petri Nets and Other Models of Concurrency XV 2019, 612 -627.
AMA StyleIvan Blečić, Alessandra G. Santos, Ana Clara Moura, Giuseppe A. Trunfio. Multi-criteria Evaluation vs Perceived Urban Quality: An Exploratory Comparison. Transactions on Petri Nets and Other Models of Concurrency XV. 2019; ():612-627.
Chicago/Turabian StyleIvan Blečić; Alessandra G. Santos; Ana Clara Moura; Giuseppe A. Trunfio. 2019. "Multi-criteria Evaluation vs Perceived Urban Quality: An Exploratory Comparison." Transactions on Petri Nets and Other Models of Concurrency XV , no. : 612-627.
Ivan Blecic; Arnaldo Cecchini; Valentina Talu. Approccio delle capacità e pianificazione urbana. Capacità urbane feconde e qualità della vita urbana degli abitanti più svantaggiati. ARCHIVIO DI STUDI URBANI E REGIONALI 2018, 34 -52.
AMA StyleIvan Blecic, Arnaldo Cecchini, Valentina Talu. Approccio delle capacità e pianificazione urbana. Capacità urbane feconde e qualità della vita urbana degli abitanti più svantaggiati. ARCHIVIO DI STUDI URBANI E REGIONALI. 2018; (122):34-52.
Chicago/Turabian StyleIvan Blecic; Arnaldo Cecchini; Valentina Talu. 2018. "Approccio delle capacità e pianificazione urbana. Capacità urbane feconde e qualità della vita urbana degli abitanti più svantaggiati." ARCHIVIO DI STUDI URBANI E REGIONALI , no. 122: 34-52.
We present a method for automatic assessment of perceived walkability by pedestrans, using a machine learning technique with deep convolutional neural networks (CNNs) trained on a dataset of georeferenced street-level images obtained from Google Street View. On a dataset of more than 17,000 human-assessed images used for training, validation and testing of CNN, out method yields an accuracy of 78% of correct and 99% of correct or 1-class-off predictions. These are quite promising, even encouraging results, paving the way for seamless large-scale applications of perceived walkability assessment on large metropolitan areas, and for a mass assessment and comparisons of walkability over many cities across regions.
Ivan Blečić; Arnaldo Cecchini; Giuseppe A. Trunfio. Towards Automatic Assessment of Perceived Walkability. Advances in Knowledge Discovery and Data Mining 2018, 351 -365.
AMA StyleIvan Blečić, Arnaldo Cecchini, Giuseppe A. Trunfio. Towards Automatic Assessment of Perceived Walkability. Advances in Knowledge Discovery and Data Mining. 2018; ():351-365.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini; Giuseppe A. Trunfio. 2018. "Towards Automatic Assessment of Perceived Walkability." Advances in Knowledge Discovery and Data Mining , no. : 351-365.
We argue that antifragility is a valuable and contentful goal for planning, distinct from resilience. We present a possible conceptualisation and delineate the essential properties of an antifragile planning, its affinities with the capability approach, and discuss the possible sources of its legitimacy within the conception of a liberal-democratic state. Hence the suggestion to incorporate antifragility into both the methodology and the content of planning.
Ivan Blečić; Arnaldo Cecchini. Planning for Antifragility and Antifragility for Planning. Blockchain Technology and Innovations in Business Processes 2018, 489 -498.
AMA StyleIvan Blečić, Arnaldo Cecchini. Planning for Antifragility and Antifragility for Planning. Blockchain Technology and Innovations in Business Processes. 2018; ():489-498.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini. 2018. "Planning for Antifragility and Antifragility for Planning." Blockchain Technology and Innovations in Business Processes , no. : 489-498.
We present a design support tool which generates outlines of urban projects targeting user-defined walkability objectives. The tool is part of our ongoing research effort to develop not only evaluative, but also generative tools, to be used during the design process, assisting architects and urban planners in designing more walkability of cities. The tool couples the capability-wise walkability score (CAWS) evaluation method with the NSGA-II multi-objective genetic algorithm, to generate a set of non-dominated solutions whose properties and expected effects can be explored within the software tool.
Ivan Blecic; Arnaldo Cecchini; Giuseppe A. Trunfio. Computer-Aided Drafting of Urban Designs for Walkability. Computer Vision 2017, 10407, 695 -709.
AMA StyleIvan Blecic, Arnaldo Cecchini, Giuseppe A. Trunfio. Computer-Aided Drafting of Urban Designs for Walkability. Computer Vision. 2017; 10407 ():695-709.
Chicago/Turabian StyleIvan Blecic; Arnaldo Cecchini; Giuseppe A. Trunfio. 2017. "Computer-Aided Drafting of Urban Designs for Walkability." Computer Vision 10407, no. : 695-709.
We propose a decision-aiding evaluation procedure (i) for classifying road crossings based on their impact on walkability and, subsequently, (ii) for prioritising street improvements, in urban-rural fringe areas. In the peripheral urban-rural fringes, pedestrian mobility is usually less developed and people generally depend more on cars for their everyday chores. Partly this is inevitable given the structural features and supply of services and activities in such areas, but part is due to a frequent neglect of pedestrian mobility in planning and urban design. Measures to improve this state of affairs can include the design of more pedestrian-friendly environments offering to potential users a greater level of security, comfort and convenience when walking to their designated destinations. Our evaluation procedure combines a walkability assessment methodology with the ELECTRE TRI rating procedure, in order to assist planners and decision makers in designing physical streets to enhance the continuity, safety and quality of pedestrian paths. Improving the walking accessibility in the fringe areas of towns is a way to reduce the physical and perceptual distance which separates these contexts from the rest of the city, thus leading to a progressive integration of urban functions.
Ivan Blecic; Dario Canu; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello. Walkability and Street Intersections in Rural-Urban Fringes: A Decision Aiding Evaluation Procedure. Sustainability 2017, 9, 883 .
AMA StyleIvan Blecic, Dario Canu, Arnaldo Cecchini, Tanja Congiu, Giovanna Fancello. Walkability and Street Intersections in Rural-Urban Fringes: A Decision Aiding Evaluation Procedure. Sustainability. 2017; 9 (6):883.
Chicago/Turabian StyleIvan Blecic; Dario Canu; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello. 2017. "Walkability and Street Intersections in Rural-Urban Fringes: A Decision Aiding Evaluation Procedure." Sustainability 9, no. 6: 883.
Ivan Blečić; Arnaldo Cecchini. Erratum to: On the antifragility of cities and of their buildings. City, Territory and Architecture 2017, 4, 3 .
AMA StyleIvan Blečić, Arnaldo Cecchini. Erratum to: On the antifragility of cities and of their buildings. City, Territory and Architecture. 2017; 4 (1):3.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini. 2017. "Erratum to: On the antifragility of cities and of their buildings." City, Territory and Architecture 4, no. 1: 3.
We discuss the relevance of the concept of antifragility, introduced by Nassim Taleb, to the theory and practice of urban planning and design. We further contrast the antifragility of cities with that of their “smartness”, suggesting that the former deserves a greater focus in the planning practice. Finally, we explore the potential antifragility of buildings, arguing it to be an important factor of the antifragility of cities in general. Keywords Antifragile planning Antifragile urbanism Urban design
Ivan Blečić; Arnaldo Cecchini. On the antifragility of cities and of their buildings. City, Territory and Architecture 2017, 4, 537 .
AMA StyleIvan Blečić, Arnaldo Cecchini. On the antifragility of cities and of their buildings. City, Territory and Architecture. 2017; 4 (1):537.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini. 2017. "On the antifragility of cities and of their buildings." City, Territory and Architecture 4, no. 1: 537.
Ivan Blečić; Dario Canu; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello. Factors of Perceived Walkability: A Pilot Empirical Study. Computer Vision 2016, 125 -137.
AMA StyleIvan Blečić, Dario Canu, Arnaldo Cecchini, Tanja Congiu, Giovanna Fancello. Factors of Perceived Walkability: A Pilot Empirical Study. Computer Vision. 2016; ():125-137.
Chicago/Turabian StyleIvan Blečić; Dario Canu; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello. 2016. "Factors of Perceived Walkability: A Pilot Empirical Study." Computer Vision , no. : 125-137.
Ivan Blečić; Arnaldo Cecchini; Dario Canu; Andrea Cappai; Tanja Congiu; Giovanna Fancello. Evaluating the Effect of Urban Intersections on Walkability. Computer Vision 2016, 138 -149.
AMA StyleIvan Blečić, Arnaldo Cecchini, Dario Canu, Andrea Cappai, Tanja Congiu, Giovanna Fancello. Evaluating the Effect of Urban Intersections on Walkability. Computer Vision. 2016; ():138-149.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini; Dario Canu; Andrea Cappai; Tanja Congiu; Giovanna Fancello. 2016. "Evaluating the Effect of Urban Intersections on Walkability." Computer Vision , no. : 138-149.
Ivan Blečić; Dario Canu; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello; Stefania Mauro; Sara Levi Sacerdotti; Giuseppe A. Trunfio. Coupling Surveys with GPS Tracking to Explore Tourists’ Spatio-Temporal Behaviour. Transactions on Petri Nets and Other Models of Concurrency XV 2016, 150 -160.
AMA StyleIvan Blečić, Dario Canu, Arnaldo Cecchini, Tanja Congiu, Giovanna Fancello, Stefania Mauro, Sara Levi Sacerdotti, Giuseppe A. Trunfio. Coupling Surveys with GPS Tracking to Explore Tourists’ Spatio-Temporal Behaviour. Transactions on Petri Nets and Other Models of Concurrency XV. 2016; ():150-160.
Chicago/Turabian StyleIvan Blečić; Dario Canu; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello; Stefania Mauro; Sara Levi Sacerdotti; Giuseppe A. Trunfio. 2016. "Coupling Surveys with GPS Tracking to Explore Tourists’ Spatio-Temporal Behaviour." Transactions on Petri Nets and Other Models of Concurrency XV , no. : 150-160.
In a few recent papers we presented a methodology and the related planning and design support tool, Walkability Explorer, for the evaluation of walkability of places which are relevant for people’s capabilities. The method is an attempt to move beyond the known approaches to evaluating walkability based on the analysis of proximity to urban places and on macro urban and socioeconomic factors, because it conceptualises walkability as the effective capability to walk offered by the environment thanks to micro-urban characteristics. It evaluates how the urban environment is conducive to walk by combining three elements: the destinations/opportunities reachable by foot, their walking distance and the quality of the path to these destinations. Following this approach, here we present and discuss an example assessment of walkability for the city of Alghero (Italy).
Ivan Blečić; Arnaldo Cecchini; Tanja Congiu; Francesco Fancello; Giovanna Fancello; Giuseppe A. Trunfio. Walkability Explorer: Application to a Case-Study. Transactions on Petri Nets and Other Models of Concurrency XV 2015, 758 -770.
AMA StyleIvan Blečić, Arnaldo Cecchini, Tanja Congiu, Francesco Fancello, Giovanna Fancello, Giuseppe A. Trunfio. Walkability Explorer: Application to a Case-Study. Transactions on Petri Nets and Other Models of Concurrency XV. 2015; ():758-770.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini; Tanja Congiu; Francesco Fancello; Giovanna Fancello; Giuseppe A. Trunfio. 2015. "Walkability Explorer: Application to a Case-Study." Transactions on Petri Nets and Other Models of Concurrency XV , no. : 758-770.
We present a methodology and a planning and design support software tool for evaluating walkability and pedestrian accessibility of places which are relevant for people’s capabilities, and thus an important component of quality of life in cities. A multicriteria evaluation model, at the core of the decision support system, is used to assign walkability scores to points in urban space. Walkability scores are obtained through algorithms which process spatial data and run the evaluation model in order to derive potential pedestrian routes along the street network, taking into account the quality of urban space on several attributes relevant for walkability. One of its notable characteristics is a certain reversal of perspective in evaluating walkability: the walkability score of a place does not reflect how that place is per se walkable, but instead how and where to can one walk from there, that is to say, what is the walkability the place is endowed with. This evaluation incorporates three intertwined elements: the number of destinations/opportunities reachable by foot, their walking distances, and the quality of the paths to these destinations. In this article, we furthermore demonstrate possible uses of the support system by reporting and discussing the results of a case-study assessment of a project for the Lisbon’s Segunda Circular (Second Ring Road). The software tool is made freely available for download.
Ivan Blečić; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello; Giuseppe A. Trunfio. Evaluating walkability: a capability-wise planning and design support system. International Journal of Geographical Information Science 2015, 29, 1350 -1374.
AMA StyleIvan Blečić, Arnaldo Cecchini, Tanja Congiu, Giovanna Fancello, Giuseppe A. Trunfio. Evaluating walkability: a capability-wise planning and design support system. International Journal of Geographical Information Science. 2015; 29 (8):1350-1374.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini; Tanja Congiu; Giovanna Fancello; Giuseppe A. Trunfio. 2015. "Evaluating walkability: a capability-wise planning and design support system." International Journal of Geographical Information Science 29, no. 8: 1350-1374.
Ivan Blečić; Arnaldo Cecchini; Giuseppe A. Trunfio. How much past to see the future: a computational study in calibrating urban cellular automata. International Journal of Geographical Information Science 2015, 29, 349 -374.
AMA StyleIvan Blečić, Arnaldo Cecchini, Giuseppe A. Trunfio. How much past to see the future: a computational study in calibrating urban cellular automata. International Journal of Geographical Information Science. 2015; 29 (3):349-374.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini; Giuseppe A. Trunfio. 2015. "How much past to see the future: a computational study in calibrating urban cellular automata." International Journal of Geographical Information Science 29, no. 3: 349-374.
In the paper we present an urban design support tool centered on pedestrian accessibility and walkability of places. Differently from standard decision support systems developed for the purpose of evaluating given pre-defined urban projects and designs, we address the inverse problem of having the software system itself generate hypotheses of projects and designs, given some (user-provided) objectives and constraints. Taking as a starting point a model for evaluating walkability, we adapt the NSGA-II multi-objective genetic algorithm to produce the front of non-dominated design alternatives to satisfy certain predefined constraints. By way of example, we briefly present an application of the system to a real urban area
Ivan Blečić; Arnaldo Cecchini; Giuseppe A. Trunfio. Towards a Design Support System for Urban Walkability. Procedia Computer Science 2015, 51, 2157 -2167.
AMA StyleIvan Blečić, Arnaldo Cecchini, Giuseppe A. Trunfio. Towards a Design Support System for Urban Walkability. Procedia Computer Science. 2015; 51 ():2157-2167.
Chicago/Turabian StyleIvan Blečić; Arnaldo Cecchini; Giuseppe A. Trunfio. 2015. "Towards a Design Support System for Urban Walkability." Procedia Computer Science 51, no. : 2157-2167.
Deciding upon optimum planning actions in terms of sustainable urban planning involves the consideration of multiple environmental and socio-economic criteria. The transformation of natural landscapes to urban areas affects energy and material fluxes. An important aspect of the urban environment is the urban metabolism, and changes in such metabolism need to be considered for sustainable planning decisions. A spatial Decision Support System (DSS) prototyped within the European FP7-funded project BRIDGE (sustainaBle uRban plannIng Decision support accountinG for urban mEtabolism), enables accounting for the urban metabolism of planning actions, by exploiting the current knowledge and technology of biophysical sciences. The main aim of the BRIDGE project was to bridge the knowledge and communication gap between urban planners and environmental scientists and to illustrate the advantages of considering detailed environmental information in urban planning processes. The developed DSS prototype integrates biophysical observations and simulation techniques with socio-economic aspects in five European cities, selected as case studies for the pilot application of the tool. This paper describes the design and implementation of the BRIDGE DSS prototype, illustrates some examples of use, and highlights the need for further research and development in the field.
Zina Mitraka; Emmanouil Diamantakis; Nektarios Chrysoulakis; Eduardo Anselmo Castro; Roberto San Jose; Ainhoa Gonzalez; Ivan Blecic. Incorporating Bio-Physical Sciences into a Decision Support Tool for Sustainable Urban Planning. Sustainability 2014, 6, 7982 -8006.
AMA StyleZina Mitraka, Emmanouil Diamantakis, Nektarios Chrysoulakis, Eduardo Anselmo Castro, Roberto San Jose, Ainhoa Gonzalez, Ivan Blecic. Incorporating Bio-Physical Sciences into a Decision Support Tool for Sustainable Urban Planning. Sustainability. 2014; 6 (11):7982-8006.
Chicago/Turabian StyleZina Mitraka; Emmanouil Diamantakis; Nektarios Chrysoulakis; Eduardo Anselmo Castro; Roberto San Jose; Ainhoa Gonzalez; Ivan Blecic. 2014. "Incorporating Bio-Physical Sciences into a Decision Support Tool for Sustainable Urban Planning." Sustainability 6, no. 11: 7982-8006.