CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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Hits 1 to 20 of 137

_id ecaade2011_132
id ecaade2011_132
authors Coskun, Emirhan; Cagdas; Gulen
year 2011
title An Integrated Model For Emergent City Behavior Based On User Movements
doi https://doi.org/10.52842/conf.ecaade.2011.159
source RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.159-165
summary Today, with rapidly evolving information technology, computer technologies has become an interface rather than a tool for design process. With the development in computer applications it has become possible to solve design problems which were not possible to handle before. Computer environment which has become an interface rather than a tool for design has also led to the emergence of a number of concepts. New concepts such as Computer Aided Design (CAD), Computer Aided Manufacturing (CAM), Computer Aided Engineering (CAE) are being involved in design process. With the development of Artificial Intelligence (AI) , AI has earned an interdisciplinary position. Agent based systems which are contained in the fields of AI have become the subjects of many researches in design basis. Approach to the problem solving process in the process of architectural/design problems is to be addressed as an important point within the scope of evaluation process. In this context user movements have a very critical role in process of problem solving according to the design problems. While designing or solving a design problem , ignoring the user movements can lead to unwanted results. Within the scope of this study user movements in city are considered in the context of emerging urban part/particles as a preliminary study.
wos WOS:000335665500018
keywords Emergence; agent-based systems; user movements in city; city dweller
series eCAADe
email
last changed 2022/05/01 23:21

_id ecaade2011_104
id ecaade2011_104
authors Jorge Gil, Júlio Almeida, José Pinto Duarte
year 2011
title The backbone of a City Information Model (CIM): Implementing a spatial data model for urban design
doi https://doi.org/10.52842/conf.ecaade.2011.143
source RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.143-151
summary We have been witnessing an increased interest in a more holistic approach to urban design practice and education. In this paper we present a spatial data model for urban design that proposes the combination of urban environment feature classes with design process feature classes. This data model is implemented in a spatial database that becomes the backbone of a City Information Model (CIM), integrating urban neighbourhood formulation, design, and evaluation methods into a comprehensive urban design support system. We demonstrate its application to urban design analysis and evaluation through the development of a tool for AutoCAD Map 3D that is integrated with the PostGIS spatial database.
wos WOS:000335665500016
keywords Urban design; data model; GIS; design support tools; urban design evaluation
series eCAADe
email
last changed 2022/05/01 23:21

_id ecaade2012_113
id ecaade2012_113
authors Jutraz, Anja ; Zupancic, Tadeja
year 2012
title Digital system of tools for public participation and education in urban design: Exploring 3D ICC
doi https://doi.org/10.52842/conf.ecaade.2012.1.383
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 383-392
summary This article is a starting point for the development of experiential urban co-design interfaces to enhance public participation in local urban projects and to be also used as a communication and collaboration tool in urban design. It is based on the previous research involving 3D city models utilized as understandable design interfaces for the non-technical public (Jutraz, Zupancic, 2011), where we have already explored different views (pedestrian, intermediate and bird’s-eye view), as well as the means by which the information obtained from these different views may be combined by shifting between viewpoints. Previous work was conducted in the “street lab” as well as the Urban Experimental Lab, which was developed specifi cally for the public’s participation in urban planning (Voigt, Kieferle, Wössner, 2009). Presented in this article is the next step that explores the immersive collaboration environment 3D ICC [1], formerly known as Teleplace. The environment was developed for effi cient collaboration and remote communication and shifts the research focus towards questions regarding how to employ both labs as interfaces between the non-technical public and design professionals. As we are facing the lack of digital systems for public participation and education in urban design, different digital tools for communication and collaboration should be combined into a new holistic platform for design. A digital system of tools needs to be developed that supports the urban design decision-making process and focuses on improved final solutions and increased satisfaction amongst all participants. In this article the system of digital tools for public participation, which include communication, collaboration and education, will be also defi ned, with its basic characteristics and its elements.
wos WOS:000330322400039
keywords Digital system of tools; collaboration; 3D model; public participation; urban design
series eCAADe
email
last changed 2022/06/07 07:52

_id ecaade2011_070
id ecaade2011_070
authors Montenegro, Nuno; Beirão, José N.; Duarte, José P.
year 2011
title Public Space Patterns: Towards a CIM standard for urban public space
doi https://doi.org/10.52842/conf.ecaade.2011.079
source RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.79-86
summary This paper describes public space patterns (PSP) used as basic elements of the City Information Modelling (CIM) model proposed within a larger research project that aims to develop an urban design support tool.
wos WOS:000335665500008
keywords Urban Patterns; CIM; Description Grammars; Ontologies
series eCAADe
email
last changed 2022/05/01 23:21

_id eaea2009_piga
id eaea2009_piga
authors Piga, Barbara E.A.
year 2011
title The Urban Simulation and Projects Evaluation Laboratory at the Politecnico di Milano: An Educational and Research Facility
source Projecting Spaces [Proceedings of the 9th European Architectural Endoscopy Association Conference / ISBN 978-3-942411-31-8 ], pp. 115-120
summary At the beginning of 2007 an Italian Urban Simulation Laboratory was founded at the Politecnico di Milano. The laboratory, coordinated by prof. Fausto Curti, has been developed thanks to the one year presence of the visiting professor Peter Bosselmann, director of the Environmental Simulation Laboratory at the University of California at Berkeley. The laboratory has an interdisciplinary approach and a threefold mission: experiment, using the laboratory setting to study urban projects at different scales; communicate, aiding public communication by making urban projects understandable to everyone; integrate and innovate, working on different kind of simulations techniques in an integrated way. In its initial experience the laboratory is primarily a didactic and research facility. Students can join the work and participate actively to the research. Until now about 40 students have worked with us, more than a half were foreign students from all over the world. The majority of the students did an internship of about 150 (three-year degree) or 300 (master degree) hours and some of them have continued working after this period developing a thesis. At the moment the case study, used as a pilot research, is about the Porta Nuova project at the Garibaldi- Repubblica area in Milan. The 300.000 mq of the total area and its well served central position make this place strategic for Milan. In this area the adopted urban transformation plan is creating a new business center that affects redevelopment projects, new infrastructures, and a park. The overall project will overhanging the surroundings city center with some of the highest buildings of its skyline. The importance of the site and the dimension of the project make this case significant to test the use of simulation for supporting evaluations about morphological aspects, comfort conditions, visual impacts, and other aspects that directly influence the quality of the new urban spaces. We are now applying different simulation methodologies in order to better understand the peculiar usefulness of each kind as a tool to support evaluation. As any kind has its own limits we work with different typologies at the same time. We are working with 1:500 scale physical model of a 1 km square of the area and different kind of static and dynamic simulations. We developed, with an external office, a micro-car to move a micro-camera in the maquette. We use this equipment to better explain the project implications to the students by producing subjective shot videos or showing a walk in real-time. To reproduce in a better way some relevant walks through the transformed site we have also produced some videos made of a superimposition of the real existing context and the virtual projects. To do this we used a rendered video of the project superimposed to the filmed promenade of the today condition, previously recorded using steadycam. A lot of static simulations has been employed to better understand the new city configuration from some representative points of view, as for example the roof of the Duomo cathedral. We are now developing some other kinds of analysis such as shadows impact; this is done by using a 1:1000 scale maquette in the Heliodon, but also with some digital tools. In the next future a work with the wind tunnel will help to understand some other comfort implications of the project at the micro-urban scale. The multilayer approach is the main aim of the laboratory and is an important tool to clarify the multidimensional project impacts to the students. In this way the laboratory can be a learning tool, it can stimulate the project process and support decision-making while improving the knowledge about the correct use of simulations for evaluating the cumulative implications of the proposed urban processes.
series other
more http://info.tuwien.ac.at/eaea
last changed 2011/03/04 08:45

_id cf2011_p152
id cf2011_p152
authors Plume, Jim; Mitchell John
year 2011
title An Urban Information Framework to support Planning, Decision-Making & Urban Design
source Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 653-668.
summary This paper reports on a 2-year research project undertaken in collaboration with a state planning authority, a major city municipal council and a government-owned development organisation. The project has involved the design of an urban information model framework with the aim of supporting more informed urban planning by addressing the intersection where an individual building interfaces with its urban context. This adopted approach enables new techniques that better model the city and its processes in a transparent and accessible manner. The primary driver for this project was the challenge provided by the essential incompatibility between legacy GIS (geographic information system) datasets and BIM (building information model) representations of the built form. When dealing with urban scale information, GIS technologies use an overlay mapping metaphor linked to traditional relational database technologies to identify features or regions in the urban landscape and attach attribute data to those in order to permit analysis and informed assessment of the urban form. On the other hand, BIM technologies adopt an object-oriented approach to model the full three-dimensional characteristics of built forms in a way that captures both the geometric and physical attributes of the parts that make up a building, as well as the relationships between those parts and the spaces defined by the building fabric. The latter provides a far richer semantic structure to the data, while the former provides robust tools for a wide range of urban analyses. Both approaches are widely recognised as serving well the needs of their respective domains, but there is a widespread belief that we need to reconcile the two disparate approaches to modelling the real world. This project has sought to address that disjunction between modelling approaches. The UrbanIT project concentrated on two aspects of this issue: the development of a framework for managing information at the precinct and building level through the adoption of an object-oriented database technology that provides a platform for information management; and an exploration of ontology tools and how they can be adopted to facilitate semantic information queries across diverse data sources based on a common urban ontology. This paper is focussed on the first of those two agendas, examining the context of the work, the challenges addressed by the framework and the structure of our solution. A prototype implementation of the framework is illustrated through an urban precinct currently undergoing renewal and redevelopment, finishing with a discussion of future work that comes out of this project. Our approach to the implementation of the urban information model has been to propose extensions to ISO/PAS 16739, the international standard for modelling building information that is commonly known as IFC (Industry Foundation Classes). Our reason for adopting that approach is primarily our deep commitment to the adoption of open standards to facilitate the exchange of information across the built environment professions, but also because IFC is based on a robust object schema that can be used to construct a internet-accessible database able, theoretically, to handle the vast quantity of data needed to model urban-scale information. The database solution comes with well-established protocols for handling data security, integrity, versioning and transaction processing or querying. A central issue addressed through this work is concerned with level of detail. An urban information model permits a very precise and detailed representation of an urban precinct, while many planning analyses rely on simplified object representations. We will show that a key benefit of our approach is the ability to simultaneously maintain multiple representations of objects, making use of the concept of model view definitions to manage diverse analysis needs.
keywords urban information modelling, geographic information systems, city models, interoperability, urban planning, open standards
series CAAD Futures
email
last changed 2012/02/11 19:21

_id sigradi2011_408
id sigradi2011_408
authors Ripper Kós, Jose; Lima Botelho, Filipe
year 2011
title O modelo 3D da Ilha de Santa Catarina: mapeamento tridimensional de dados urbanos [The Santa Catarina Island 3D model: mapping tridimensional urban data]
source SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 575-578
summary The development of the Santa Catarina Island 3D model illustrated a successful integration of different research elaborated by several groups from the PGAU-Cidade Post-Graduate Program at the Federal University of Santa Catarina. The model displayed a superposition of different urban data at the 3D model topography. Data mapped varied from ecosystems, housing divided by social groups, geomorphology, environmetal protected areas and cultural highlight áreas. One of the research target is a design proposal for public parks that could create continuos areas to connect different ecosystems of the island, focusing on áreas of cultural interest for the city dwellers.
series SIGRADI
email
last changed 2016/03/10 09:58

_id acadia11_40
id acadia11_40
authors Weinstock, Michael
year 2011
title The Architecture of Flows: Integrated Infrastructures and the ‘Metasystem’ of Urban Metabolism
doi https://doi.org/10.52842/conf.acadia.2011.040
source ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 40-43
summary The traditional approach to urban design studies has been based on what can be described as a generalised anatomical model, e.g., functional zoning coupled to metaphors such as green areas serving as the ‘lungs’ of cities. Despite the frequent use of biological metaphors, urban design has generally proceeded from an understanding of cities as static arrays of buildings and infrastructures that exist in, but are distinct from, stable environments. But this approach does not reflect the dynamic systems of cities throughout history, nor their close coupling to the dynamics of their local environment, climate and ecology, and now the global dynamics of culture and economy. The limitations of this approach, in which cities are treated as discrete artefacts, rather than nodes interconnected by multiple networks, are compounded by the legal and regulatory boundary of the city usually being defined as an older core, so that cities are regarded as something quite separate from their surrounding territory. All cities have administrative boundaries, but cities are very rarely either physically or energetically contained within those administrative boundaries. In the past, cities gathered most of the energy and materials they needed from their immediate local territory, and trade linked systems of cities across whole regions. The growth and vitality of many cities are no longer dependent on the spatial relationship with their immediate environs but on the regional and global flows of resources. The flow of materials, information and energy through cities comes from far outside their physical and regulatory (municipal) boundaries. Cities now extend their metabolic systems over very great distances, so that the extended territory of the urban metabolism of a city and its geographical ‘place’ are often completely decoupled.
series ACADIA
type keynote paper
email
last changed 2022/06/07 07:58

_id sigradi2011_282
id sigradi2011_282
authors Alcantara Brod, Gustavo; Borda Almeida da Silva, Adriane; Freitas Pires, Janice
year 2011
title Anamorfose na Praça: Um Encontro do Real e do Virtual [Anamorphosis in the square: the real meets the virtual]
source SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 131-134
summary This paper describes the process of creating anamorphic projection using digital tools in order to apply this technique to full color images that can then be printed and applied onto a surface. The experiment was done as an installation in the main square of the city of Pelotas - RS, intended to explore the perception of three-dimensional illusion produced by anamorphosis and verify the reaction of the general public while they experience the unusual view of the historic building in front of them.
series SIGRADI
email
last changed 2016/03/10 09:47

_id 10cc
id 10cc
authors Alves, Gilfranco; Nojimoto, Cynthia
year 2011
title Strings Pavilion: design process
source V!RUS, [online] n. 6. [online] Available at: . [Accessed: 30 December 2011].
summary The paper presents the design process of Strings Pavilion developed during the Architectural Association School of Architecture's Visiting School Workshop occurred in Sao Paulo city, in July, 2011. The pavilion is an outcome from a collective creation process of five persons team working in an immersive way during ten days; they explored several possibilities of experimentation and hybrid processes from researches about materials features and behaviors as well as parametric software. Fundamental concepts such as loop, feedback and responsivity from Second Order Cybernetic and Systems Theory were included and applied in the creation process.
keywords design processes; Second Order Cybernetic; Complex Systems, parametric design; digital fabrication; interactivity.
series other
type normal paper
email
more http://www.nomads.usp.br/virus/virus06/?sec=6&item=2&lang=en
last changed 2012/01/09 07:27

_id ecaade2011_021
id ecaade2011_021
authors Asanowicz, Aleksander
year 2011
title Digital “serial vision” - new approach in urban composition teaching
doi https://doi.org/10.52842/conf.ecaade.2011.716
source RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.716-724
summary The paper discusses the following problem: How can digital technology are integrated with urban composition teaching to provide a better understanding of the aesthetical and emotional aspects of the city? It argues for the current need for an integration of computer modelling and the approaches developed form the work of K. Lynch, G. Cullen, R. Krier, F. Ching. The paper is based on the experience in design studio teaching and an experiment completed with students. The exercise shows the students that different spatial organization may cause different emotions according to the treatment of space-defining elements. The paper presents the background and context as well as describes the experimental environment and the student work.
wos WOS:000335665500083
keywords Urban composition; serial vision; computer animation
series eCAADe
email
last changed 2022/05/01 23:21

_id ecaade2011_050
id ecaade2011_050
authors Beirão, José N.; Nourian, Pirouz; Mashhoodi, Bardia
year 2011
title Parametric urban design: An interactive sketching system for shaping neighborhoods
doi https://doi.org/10.52842/conf.ecaade.2011.225
source RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.225-234
summary In this paper we show the structure of an urban design parametric system. The system is dynamic and builds an interactive relation with the designer updating the layout and related data at each input change. The responsiveness of the system allows the designer to gain awareness on the qualitative consequences of each design move by comparing a design state with a set of urban indicators and density measures which are automatically calculated along with the geometrical updates.
wos WOS:000335665500025
keywords Parametric urban design; city modelling; urban planning
series eCAADe
email
last changed 2022/05/01 23:21

_id sigradi2011_083
id sigradi2011_083
authors Bertuzzi, Juan; Zreik, Khaldoun
year 2011
title Mixed Reality Games - Augmented Cultural Heritage
source SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 304-307
summary This paper aims at enhancing Cultural Heritage in several ways. Using Augmented Reality and Virtual Reality technologies, we seek to highlight the advantages of understanding and applying hyper worlds in cultural, sociological, psychological and educational fields. For this purpose, we suggest the inclusion of social serious games as the perfect link to a more productive and pleasant experience for users and a more accurate analysis of simulated cultural environments for researchers.
keywords Game; social; city; culture; heritage
series SIGRADI
email
last changed 2016/03/10 09:47

_id sigradi2011_366
id sigradi2011_366
authors Braida, Frederico; Nonima, Vera L.
year 2011
title A representação das cidades na era da cultura digital: ampliação, consumo e produção das cidades no ciberespaço [The representation of cities in the era of digital culture: expansion, consumption and production of cities in cyberspace ]
source SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 320-323
summary This article presents a study on the representation of cities in the era of digital culture and aims to show how the phenomenon of self-production is present in the websites studied. At the end, we conclude that cities (through city marketing), local government (through advertising and through the creation of an identity) and citizens (through selfbranding), they create a rhetorical itself and constitute itself as brands. Therefore, we conclude that cybercities has been more an extended space of consumption and production of cities, municipalities and citizens.
series SIGRADI
email
last changed 2016/03/10 09:47

_id ecaade2011_122
id ecaade2011_122
authors Chronis, Angelos; Jagannath, Prarthana; Siskou, Vasiliki Aikaterini; Jones, Jonathan
year 2011
title Sensing digital co-presence and digital identity: Visualizing the Bluetooth landscape of the City of Bath
doi https://doi.org/10.52842/conf.ecaade.2011.087
source RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.87-92
summary The impact of ubiquitous digital technologies on the analysis and synthesis of our urban environment is undoubtedly great. The urban topography is overlaid by an invisible, yet very tangible digital topography that is increasingly affecting our urban life. As W. J. Mitchell (Mitchell 2005) pointed out, the digital revolution has filled our world with “electronic instruments of displacement” that “embed the virtual in the physical, and weave it seamlessly into daily urban life”. The mobile phone, the most integrated mobile device is closely related to the notion of a digital identity, our personal identity on this digital space. The Bluetooth is the mainly used direct communication protocol between mobile phones today and in this scope, each device has its own unique ID, its “MAC address”. This paper investigates the potential use of recording and analysing Bluetooth enabled devices in the urban scale in understanding the interrelation between the physical and the digital topographies.
wos WOS:000335665500009
keywords Pervasive systems; digital presence; urban encounter; digital identity
series eCAADe
email
last changed 2022/05/01 23:21

_id ecaaderis2018_103
id ecaaderis2018_103
authors Davidová, Marie and Prokop, Šimon
year 2018
title TreeHugger - The Eco-Systemic Prototypical Urban Intervention
source Odysseas Kontovourkis (ed.), Sustainable Computational Workflows [6th eCAADe Regional International Workshop Proceedings / ISBN 9789491207143], Department of Architecture, University of Cyprus, Nicosia, Cyprus, 24-25 May 2018, pp. 75-84
keywords The paper discusses co-design, development, production, application of TreeHugger (see Figure 1). The co-design among community and trans-disciplinary participants with different expertise required scope of media mix, switching between analogue, digital and back again. This involves different degrees of physical and digital 'GIGA-Mapping' (Sevaldson, 2011, 2015), 'Grasshopper3d' (Davidson, 2017) scripting and mix of digital and analogue fabrication to address the real life world. The critical participation of this 'Time-Based Design' (Sevaldson, 2004, 2005) process is the interaction of the prototype with eco-systemic agency of the adjacent environment - the eco-systemic performance. The TreeHugger is a responsive solid wood insect hotel, generating habitats and edible landscaping (Creasy, 2004) on bio-tope in city centre of Prague. To extend the impact, the code was uploaded for communities to download, local-specifically edit and apply worldwide. Thus, the fusion of discussed processes is multi-scaled and multi-layered, utilised in emerging design field: Systemic Approach to Architectural Performance.
series eCAADe
email
last changed 2018/05/29 14:33

_id sigradi2011_271
id sigradi2011_271
authors Gonçalves, Marly de Menezes
year 2011
title O uso da realidade aumentada no espaço urbano [Augmented Reality use in Urban Area]
source SIGraDi 2011 [Proceedings of the 15th Iberoamerican Congress of Digital Graphics] Argentina - Santa Fe 16-18 November 2011, pp. 512-515
summary New technologies have lead to significant changes in man's relationship with spaces, both real and virtual. In this regard, this article seeks to show how augmented reality use in urban areas may complement physical space perception, without spoiling cultural, historical, artistic and scenic city heritage.
keywords Augmented Reality; Visual Identity; Urban Space
series SIGRADI
email
last changed 2016/03/10 09:52

_id sigradi2020_903
id sigradi2020_903
authors Herran Cuartas, Coppelia
year 2020
title Domestic spaces design for allow income housing
source SIGraDi 2020 [Proceedings of the 24th Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Online Conference 18 - 20 November 2020, pp. 903-911
summary This research is related to the urban transformation that Medellín underwent during the 2004-2011 administrations, in which large architectural projects were implemented in the poorest and most violent areas of the city. To inquire about the effectiveness of these interventions, we look at one of the housing projects worthies of different international recognitions, called the Housing Consolidation of the Quebrada Juan Bobo. Characterized by generating Social Interest Housing (Vivienda de Interés Social-VIS in Spanish) in the creek’s basin, this project benefited 1,240 people who were relocated within the same neighborhood, including some on the same space next to the creek, where their old home was built.
keywords Live, Quality of life, Home, Domestic practices, Informality
series SIGraDi
email
last changed 2021/07/16 11:53

_id cf2011_p049
id cf2011_p049
authors Hii Jun Chung, Daniel; Chye Kiang Heng, Lai Choo Malone Lee, Ji Zhang
year 2011
title Analyzing the Ventilation Performance of Tropical High Density Residential Precincts using Computational Fluid Dynamics
source Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 351-366.
summary Major cities in the world are getting bigger as they continue to grow to cater for more population increase. These cities normally forced the urban planning to go high density. In the tropical context, high density cities like Singapore and Hong Kong do not have the luxury of space to go low rise and compact. These cities have to build to the floor area ratio of 4 and above to cater for the population. Their only solution is to go up, as high as possible, to the extent that the natural wind flow pattern will be altered, which brings environmental impact to the people. This is generally not good since wind flow helps to maintain the thermal comfort of the people as heat and pollutants are being channeled out of the city to avoid Urban Heat Island effect. In the tropical context, wind flow is crucial to maintain people’s comfort as the temperature is generally very high from the exposure of the sun for the entire year. Studies have shown that wind flow plays the most significant part in maintaining human comfort despite exposing to direct sunlight in the tropics. Therefore, wind flow analysis is extremely crucial to make the design sustainable and energy efficient, as people will not have to depend on mechanical ventilation to compensate for the lack of wind flow. Computational Fluid Dynamics (CFD) has always been used in the field of architecture, urban design and urban planning to understand the patterns of wind flow through the built environment apart from wind tunnel tests. The availability of more powerful hardware for the mainstream computer users as well as the lowering costs of these computers made CFD more possible to be adopted in the design world today. This also means using CFD in the design process, especially to analyze the impact of the design to the current site conditions and annual wind patterns will help the new design to be more responsive to the site. The interest of this paper is to analyze the high density typologies to see how well they respond to the local wind flow pattern. A typology is considered acceptable when the wind flow going through the site is still maintaining acceptable wind speed. This means it does not block off the wind and create stagnant spaces. Different designs generate different typologies which will respond differently to the wind pattern. The study aims at comparing the local high density typologies in terms of their response to the wind. Changes to a typology can be explored too to see if the performance will be different. For a typology which is considered a total failure in terms of response to wind, it may improve its performance if the orientation is altered. The CFD software can also parametrically respond to the changes of the typologies’ dimensions. This is helpful to see how much more a typology can still be performing well before failure by increasing the floor area index. The easiest way to do this is to pump up the building height. In conclusion, designing in response to wind is extremely important as it is more sustainable and responsive to Urban Heat Island effect. A design which responds well to the wind patterns will help save cost of cooling load and fan expenditure. The people will also be more willing to use the outdoor spaces which will as a whole generate more vibrant city spaces. As a result, a high density city with huge population count can still enjoy good thermal comfort if the general urban planning and design respond well to wind.
keywords computational fluid dynamics, sustainability, high density, urban design, airflow, ventilation
series CAAD Futures
email
last changed 2012/02/11 19:21

_id caadria2012_018
id caadria2012_018
authors Huang, Weixin and Weiguo Xu
year 2012
title Parametric urban design exploration in a graduate design studio
doi https://doi.org/10.52842/conf.caadria.2012.559
source Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 559–568
summary A city is a typical complex system that composed of billions of individual factors that interact with each other, and evolve dynamically. Parametric design method considers design conditions as the parameters of form generation, and introduces bottom-up emergent process in computers into architectural design. Because of such mechanism, it is supposed that parametric design can be applied in urban design problems, and brings rationality and creativity into urban design. In the year 2011, a joint design studio of Princeton University, Tokyo University and Tsinghua University is carried out. Graduate students from the three universities dive into the design of a micro-city that expands from Haneda airport in Tokyo bay area. The design studio in Tsinghua lasts for 16 weeks, and the students are asked to develop their ideas in a parametric way, and explore the potential of bottom-up generation of urban design using computer tools.
keywords Parametric urban design; Haneda airport; complex system; urban form generation
series CAADRIA
email
last changed 2022/06/07 07:50

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