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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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_id	sigradi2006_e028c
id	sigradi2006_e028c
authors	Griffith, Kenfield; Sass, Larry and Michaud, Dennis
year	2006
title	A strategy for complex-curved building design:Design structure with Bi-lateral contouring as integrally connected ribs
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 465-469
summary	Shapes in designs created by architects such as Gehry Partners (Shelden, 2002), Foster and Partners, and Kohn Peterson and Fox rely on computational processes for rationalizing complex geometry for building construction. Rationalization is the reduction of a complete geometric shape into discrete components. Unfortunately, for many architects the rationalization is limited reducing solid models to surfaces or data on spread sheets for contractors to follow. Rationalized models produced by the firms listed above do not offer strategies for construction or digital fabrication. For the physical production of CAD description an alternative to the rationalized description is needed. This paper examines the coupling of digital rationalization and digital fabrication with physical mockups (Rich, 1989). Our aim is to explore complex relationships found in early and mid stage design phases when digital fabrication is used to produce design outcomes. Results of our investigation will aid architects and engineers in addressing the complications found in the translation of design models embedded with precision to constructible geometries. We present an algorithmically based approach to design rationalization that supports physical production as well as surface production of desktop models. Our approach is an alternative to conventional rapid prototyping that builds objects by assembly of laterally sliced contours from a solid model. We explored an improved product description for rapid manufacture as bilateral contouring for structure and panelling for strength (Kolarevic, 2003). Infrastructure typically found within aerospace, automotive, and shipbuilding industries, bilateral contouring is an organized matrix of horizontal and vertical interlocking ribs evenly distributed along a surface. These structures are monocoque and semi-monocoque assemblies composed of structural ribs and skinning attached by rivets and adhesives. Alternative, bi-lateral contouring discussed is an interlocking matrix of plywood strips having integral joinery for assembly. Unlike traditional methods of building representations through malleable materials for creating tangible objects (Friedman, 2002), this approach constructs with the implication for building life-size solutions. Three algorithms are presented as examples of rationalized design production with physical results. The first algorithm [Figure 1] deconstructs an initial 2D curved form into ribbed slices to be assembled through integral connections constructed as part of the rib solution. The second algorithm [Figure 2] deconstructs curved forms of greater complexity. The algorithm walks along the surface extracting surface information along horizontal and vertical axes saving surface information resulting in a ribbed structure of slight double curvature. The final algorithm [Figure 3] is expressed as plug-in software for Rhino that deconstructs a design to components for assembly as rib structures. The plug-in also translates geometries to a flatten position for 2D fabrication. The software demonstrates the full scope of the research exploration. Studies published by Dodgson argued that innovation technology (IvT) (Dodgson, Gann, Salter, 2004) helped in solving projects like the Guggenheim in Bilbao, the leaning Tower of Pisa in Italy, and the Millennium Bridge in London. Similarly, the method discussed in this paper will aid in solving physical production problems with complex building forms. References Bentley, P.J. (Ed.). Evolutionary Design by Computers. Morgan Kaufman Publishers Inc. San Francisco, CA, 1-73 Celani, G, (2004) “From simple to complex: using AutoCAD to build generative design systems” in: L. Caldas and J. Duarte (org.) Implementations issues in generative design systems. First Intl. Conference on Design Computing and Cognition, July 2004 Dodgson M, Gann D.M., Salter A, (2004), “Impact of Innovation Technology on Engineering Problem Solving: Lessons from High Profile Public Projects,” Industrial Dynamics, Innovation and Development, 2004 Dristas, (2004) “Design Operators.” Thesis. Massachusetts Institute of Technology, Cambridge, MA, 2004 Friedman, M, (2002), Gehry Talks: Architecture + Practice, Universe Publishing, New York, NY, 2002 Kolarevic, B, (2003), Architecture in the Digital Age: Design and Manufacturing, Spon Press, London, UK, 2003 Opas J, Bochnick H, Tuomi J, (1994), “Manufacturability Analysis as a Part of CAD/CAM Integration”, Intelligent Systems in Design and Manufacturing, 261-292 Rudolph S, Alber R, (2002), “An Evolutionary Approach to the Inverse Problem in Rule-Based Design Representations”, Artificial Intelligence in Design ’02, 329-350 Rich M, (1989), Digital Mockup, American Institute of Aeronautics and Astronautics, Reston, VA, 1989 Schön, D., The Reflective Practitioner: How Professional Think in Action. Basic Books. 1983 Shelden, D, (2003), “Digital Surface Representation and the Constructability of Gehry’s Architecture.” Diss. Massachusetts Institute of Technology, Cambridge, MA, 2003 Smithers T, Conkie A, Doheny J, Logan B, Millington K, (1989), “Design as Intelligent Behaviour: An AI in Design Thesis Programme”, Artificial Intelligence in Design, 293-334 Smithers T, (2002), “Synthesis in Designing”, Artificial Intelligence in Design ’02, 3-24 Stiny, G, (1977), “Ice-ray: a note on the generation of Chinese lattice designs” Environmental and Planning B, volume 4, pp. 89-98
keywords	Digital fabrication; bilateral contouring; integral connection; complex-curve
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	ddss2006-hb-19
id	DDSS2006-HB-19
authors	Paul Pfaffenbichler, Andrés Monzón, Ana M. Pardeiro, and Paula Vieira
year	2006
title	Development of a Hierarchical Approach to Assess the Impacts of Transport Policies - The Madrid case study
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) 2006, Innovations in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Springer, ISBN-10: 1-4020-5059-3, ISBN-13: 978-1-4020-5059-6, p. 19-34
summary	To make our cities sustainable is one of today's major challenges. The complexity of this task requires suitable planning tools. The aim of this paper is to present a hierarchical modelling approach to assess the effects of transport and land use projects and instruments. First a brief definition of the overall objective sustainability is given. This is followed by the description of the suggested hierarchical approach. A strategic, dynamic land use and transport interaction model builds the basis and is linked to models on a different spatial and functional level. A case study covering the Spanish region of Madrid ('Comunidad de Madrid') was selected to demonstrate the applicability. In particular the effects of the public transport infrastructure projects, the extension of the metro line number 9 and bus lanes on all radial highways, should be assessed. It is demonstrated that the suggested approach is applicable and suitable. The overall effect of the metro line extension and the bus lanes is positive. Nevertheless their contribution to a sustainable urban region is limited. Comprehensive strategies are needed to achieve the objective of sustainability. It could be shown that the projects can even have some negative local effects in the long term.
keywords	Simulation, Evaluation, Land-use-transport models, Sustainability, Environmental effects
series	DDSS
last changed	2006/08/29 12:55

_id	2006_106
id	2006_106
authors	Achten, Henri
year	2006
title	Feature clusters for online recognition of graphic units in drawings
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 106-112
doi	https://doi.org/10.52842/conf.ecaade.2006.106
summary	Automated recognition of sketch drawings can provide the means for a natural interface between the designer and a design support system. Sketch drawing recognition is knowledge-intensive in the sense that the system must know what to look for in a drawing. In earlier work, we identified 24 different types of representations, termed graphic units. For recognition of graphic units we combine a multi-agent approach and online recognition. Each agent is specialised for one graphic unit. It continuously parses the online input stream for stroke features that fall within its scope. When an agent-specific threshold is reached, the agent puts a claim. Each agent has a specific cluster of features that can be viewed as distributed over a decision tree. The activation pattern of feature clusters over the decision tree is an indication which graphic unit is likely to be identified by the system. In this paper, we present the exhaustive set of features for agents and a binary decision tree over which the features are distributed.
keywords	Image recognition; sketches; graphic units; feature-based modelling
series	eCAADe
email
last changed	2022/06/07 07:54

_id	2006_320
id	2006_320
authors	Ahmad, Sumbul and Scott Chase
year	2006
title	Grammar Representations to Facilitate Style Innovation - An Example From Mobile Phone Design
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 320-323
doi	https://doi.org/10.52842/conf.ecaade.2006.320
summary	Previous research in generative design has suggested that shape grammar transformations could be used for developing new design styles by the systematic modification of grammars that encode existing styles. Our research explores how such grammar transformations can be facilitated to be responsive to changes in design style requirements. For this it is important to consider the structure and organization of rules, as well as the description of the styles of designs generated by a grammar. Using an example of mobile phone design, we outline the development of a flexible grammar structure that is conducive to transformations. The grammar is augmented with a style description scheme based on the concept of semantic differential to map the style characteristics of grammar components. These measures could be significant for driving purposeful grammar transformations for style adaptation and innovation.
keywords	Design grammars; style; product design; generative design
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ascaad2006_paper19
id	ascaad2006_paper19
authors	Arjun, G. and J. Plume
year	2006
title	Collaborative Architectural Design as a reflective Conversation: an agent facilitated system to support collaborative conceptual design
source	Computing in Architecture / Re-Thinking the Discourse: The Second International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2006), 25-27 April 2006, Sharjah, United Arab Emirates
summary	In this paper, definitions of collaborative design are discussed and understood in terms of a designer’s cognitive collaborations to explore his/her experiential memory for remote idea associations. Based on Schon’s reflective practice theory, Valkenburg and Dorst’s (1998) description of collaborative team designing is adopted as a model for a proposed design conversation system. The design conversation system is aimed at triggering the experiential memory of the designer by associating significant ideas from different design domains to provide different perspectives of a design situation. The paper describes a proposed framework for the design conversation system incorporating computational agents in a blackboard architecture environment.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	sigradi2006_e131c
id	sigradi2006_e131c
authors	Ataman, Osman
year	2006
title	Toward New Wall Systems: Lighter, Stronger, Versatile
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 248-253
summary	Recent developments in digital technologies and smart materials have created new opportunities and are suggesting significant changes in the way we design and build architecture. Traditionally, however, there has always been a gap between the new technologies and their applications into other areas. Even though, most technological innovations hold the promise to transform the building industry and the architecture within, and although, there have been some limited attempts in this area recently; to date architecture has failed to utilize the vast amount of accumulated technological knowledge and innovations to significantly transform the industry. Consequently, the applications of new technologies to architecture remain remote and inadequate. One of the main reasons of this problem is economical. Architecture is still seen and operated as a sub-service to the Construction industry and it does not seem to be feasible to apply recent innovations in Building Technology area. Another reason lies at the heart of architectural education. Architectural education does not follow technological innovations (Watson 1997), and that “design and technology issues are trivialized by their segregation from one another” (Fernandez 2004). The final reason is practicality and this one is partially related to the previous reasons. The history of architecture is full of visions for revolutionizing building technology, ideas that failed to achieve commercial practicality. Although, there have been some adaptations in this area recently, the improvements in architecture reflect only incremental progress, not the significant discoveries needed to transform the industry. However, architectural innovations and movements have often been generated by the advances of building materials, such as the impact of steel in the last and reinforced concrete in this century. There have been some scattered attempts of the creation of new materials and systems but currently they are mainly used for limited remote applications and mostly for aesthetic purposes. We believe a new architectural material class is needed which will merge digital and material technologies, embedded in architectural spaces and play a significant role in the way we use and experience architecture. As a principle element of architecture, technology has allowed for the wall to become an increasingly dynamic component of the built environment. The traditional connotations and objectives related to the wall are being redefined: static becomes fluid, opaque becomes transparent, barrier becomes filter and boundary becomes borderless. Combining smart materials, intelligent systems, engineering, and art can create a component that does not just support and define but significantly enhances the architectural space. This paper presents an ongoing research project about the development of new class of architectural wall system by incorporating distributed sensors and macroelectronics directly into the building environment. This type of composite, which is a representative example of an even broader class of smart architectural material, has the potential to change the design and function of an architectural structure or living environment. As of today, this kind of composite does not exist. Once completed, this will be the first technology on its own. We believe this study will lay the fundamental groundwork for a new paradigm in surface engineering that may be of considerable significance in architecture, building and construction industry, and materials science.
keywords	Digital; Material; Wall; Electronics
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ijac20064408
id	ijac20064408
authors	Ataman, Osman; Rogers, John; Ilesanmi, Adesida
year	2006
title	Redefining the Wall: Architecture, Materials and Macroelectronics
source	International Journal of Architectural Computing vol. 4 - no. 4, pp. 125-136
summary	As a principle element of architecture, technology has allowed for the wall to become an increasingly dynamic component of the built environment. The traditional connotations and objectives related to the wall are being redefined: static becomes fluid, opaque becomes transparent, barrier becomes filter and boundary becomes borderless. Combining smart materials, intelligent systems, engineering, and art can create a component that does not just support and define but significantly enhances the architectural space. This paper presents an ongoing research project about the development of a new class of architectural wall system by incorporating distributed sensors and macroelectronics directly into the building environment. This type of composite, which is a representative example of an even broader class of smart architectural material, has the potential to change the design and function of an architectural structure or living environment. As of today, this kind of composite does not exist. Once completed, this will be the first technology of its own.
series	journal
more	http://www.ingentaconnect.com/content/mscp/ijac/2006/00000004/00000004/art00009
last changed	2007/03/04 07:08

_id	2006_656
id	2006_656
authors	Breen, Jack and Martijn Stellingwerff
year	2006
title	De-coding the Vernacular - Dynamic Representation Approaches to Case-based Compositional Study
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 656-663
doi	https://doi.org/10.52842/conf.ecaade.2006.656
summary	Representational approaches have always played an important role in the design-driven development of built environments, the analytical study of architectural compositions and their effects. With the introduction – and successive steady development – of computer-based platforms of visualization, the professional and intellectual palette of designers, as well as researchers, have expanded considerably. Nonetheless, in recent years the opportunities for systematic scrutiny and understanding of the expressive qualities of design proposals and artefacts have all too frequently been overshadowed by high-flying conceptual developments and seductive representation modes. It is time that the objective description and unravelling of architectural compositions – so to speak the discipline of Ekphrasis in design practice, education and research – is once again given more prominence in architectural discourse and debate. The central idea behind this contribution is that, by linking instruments of design with the methods of formal composition and decomposition, renewed opportunities for representation-driven study in a scholarly context, focusing upon elusive compositional attributes and their workings, may be given a new impulse. The project that is presented here concerns a case-based explorative study into the domains of aesthetic convention and invention, making use of a variety of virtual and physical representation techniques. These include digital as well as tangible modelling and sketching approaches (separately and in combination), in conjunction with computer-based image manipulation techniques, making use of systematic data identification and denotation. The opportunities, merits and shortcomings of the computer-based and physical visualization approaches, which were applied and tested, are discussed on the basis of results and findings from the ongoing AA Variations project.
keywords	Design representation; Computer-based sketching; Virtual and physical modelling; Compositional variation; Contemporary aesthetics
series	eCAADe
email
last changed	2022/06/07 07:54

_id	sigradi2006_e070c
id	sigradi2006_e070c
authors	Cardoso, Daniel
year	2006
title	Controlled Unpredictability: Constraining Stochastic Search as a Form-Finding Method for Architectural Design
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 263-267
summary	Provided with a strict set of rules a computer program can perform the role of a simple designer. Taking advantage of a computer’s processing power, it can also provide an unlimited number of variations in the form while following a given set of constraints. This paper delineates a model for interrelating a rule-based system based on purely architectural considerations with non-deterministic computational procedures in order to provide controlled variations and constrained unpredictability. The experimental model consists of a verisimilar architectural problem, the design of a residential tower with a strict program of 200 units of different types in a given site. Following the interpretation of the program, a set of rules is defined by considering architectural concerns such as lighting, dimensions, circulations, etc. These rules are then encoded in a program that generates form in an unsupervised manner by means of a stochastic search algorithm. Once the program generates a design it’s evaluated, and the parameters on the constraints are adjusted in order to produce a new design. This paper presents a description of the architectural problem and of the rule building process, images and descriptions of three different towers produced, and the code for the stochastic-search algorithm used for generating the form. The succesful evolution of the experiments show how in a computation-oriented design process the interpretation of the problem and the rule setting process play a major role in the production of meaningful form, outlining the shifting role of human designers from form-makers to rule-builders in a computation-oriented design endeavour.
keywords	Architectural Design; Stochastic; Random; Rule-based systems; Form-generation
series	SIGRADI
email
last changed	2016/03/10 09:48

_id	sigradi2006_e183a
id	sigradi2006_e183a
authors	Costa Couceiro, Mauro
year	2006
title	La Arquitectura como Extensión Fenotípica Humana - Un Acercamiento Basado en Análisis Computacionales [Architecture as human phenotypic extension – An approach based on computational explorations]
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 56-60
summary	The study describes some of the aspects tackled within a current Ph.D. research where architectural applications of constructive, structural and organization processes existing in biological systems are considered. The present information processing capacity of computers and the specific software development have allowed creating a bridge between two holistic nature disciplines: architecture and biology. The crossover between those disciplines entails a methodological paradigm change towards a new one based on the dynamical aspects of forms and compositions. Recent studies about artificial-natural intelligence (Hawkins, 2004) and developmental-evolutionary biology (Maturana, 2004) have added fundamental knowledge about the role of the analogy in the creative process and the relationship between forms and functions. The dimensions and restrictions of the Evo-Devo concepts are analyzed, developed and tested by software that combines parametric geometries, L-systems (Lindenmayer, 1990), shape-grammars (Stiny and Gips, 1971) and evolutionary algorithms (Holland, 1975) as a way of testing new architectural solutions within computable environments. It is pondered Lamarck´s (1744-1829) and Weismann (1834-1914) theoretical approaches to evolution where can be found significant opposing views. Lamarck´s theory assumes that an individual effort towards a specific evolutionary goal can cause change to descendents. On the other hand, Weismann defended that the germ cells are not affected by anything the body learns or any ability it acquires during its life, and cannot pass this information on to the next generation; this is called the Weismann barrier. Lamarck’s widely rejected theory has recently found a new place in artificial and natural intelligence researches as a valid explanation to some aspects of the human knowledge evolution phenomena, that is, the deliberate change of paradigms in the intentional research of solutions. As well as the analogy between genetics and architecture (Estévez and Shu, 2000) is useful in order to understand and program emergent complexity phenomena (Hopfield, 1982) for architectural solutions, also the consideration of architecture as a product of a human extended phenotype can help us to understand better its cultural dimension.
keywords	evolutionary computation; genetic architectures; artificial/natural intelligence
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	c870
id	c870
authors	Derix, Christian
year	2006
title	Approximating Phenomenological Space
source	EGICE - Intelligent Computing in Engineering and Architecture
summary	Architectural design requires a variety of representations to describe the many expressions a building can be observed through. Commonly, the form and space of a building are represented through the visual abstraction of projective geometry. The medium of geometric representation has become synonymous with architectural space. The introduction of computational design in architecture has not changed our understanding or representation of architectural space, only of its geometric description and production processes. The addition of the computer as a medium should allow us to open new ‘ways of seeing’ since the medium allows for novel descriptions and expressions via data processing hitherto impossible. This paper would like to propose some computational methods that could potentially describe and generate non-geometric but rather phenomenal expressions of architectural space.
keywords	neural networks, architectural space, cognition, phenomena
series	book
type	normal paper
email
more	http://www.springerlink.com/content/1j54337p42051p84/?MUD=MP
last changed	2012/09/17 21:02

_id	acadia06_251
id	acadia06_251
authors	d’Estrée Sterk, Tristan
year	2006
title	Shape Change in Responsive Architectural Structures: Current Reasons & Challenge
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 251-260
doi	https://doi.org/10.52842/conf.acadia.2006.251
summary	Shape control within architectural structures is a natural extension to the practice of engineering and architectural design. The knowledge needed for it’s development builds upon two well understood foundations: 1) the long existing knowledge that building performance and function are intimately connected to the shape of built spaces; and 2) the relatively new idea that embedded computational systems may be employed to control devices in useful and beautiful ways. When combined, each type of knowledge can be used to further architecture and engineering at both theoretical and methodological levels. Structural shape control is of major interest within architecture because it is the primary ingredient needed to produce building envelopes that change shape. Structural shape control also currently represents a major technological and methodological stumbling block for architects, posing many challenges that have theoretical and practical origins. Theoretically, responsive architectural structures demand a re-evaluation of existing notions of space making. Practically, these systems demand a re-evaluation of construction and design methodologies across both engineering and architectural practice.
series	ACADIA
type	normal paper
email
more	admin
last changed	2022/06/07 07:55

_id	acadia06_426
id	acadia06_426
authors	Garber, R., Robertson, N.
year	2006
title	The Pleated Cape: From the Mass-Standardization of Levittown to Mass Customization Today
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 426-439
doi	https://doi.org/10.52842/conf.acadia.2006.426
summary	In the 1950’s, the Levitts put mass-production and the reverse assembly line into use in the building of thousands of single-family houses. However, the lack of variation that made their construction process so successful ultimately produced a mundane suburban landscape of sameness. While there were many attempts to differentiate these Levitt Cape Cods, none matched the ingenuity of their original construction process. The notion of mass-customization has been heavily theorized since the 1990’s, first appearing in the field of management and ultimately finding its way into the field of architecture. Greg Lynn used mass-customization in his design for the Embryological House in which thousands of unique houses could be generated using biological rules of differentiation (Lynn 1999). Other industries have embraced the premise that computer-numerically-controlled technologies allow for the production of variation, though it has not been thoroughly studied in architecture. While digital fabrication has been integral in the realization of several high-profile projects, the notion of large-scale mass-customization in the spec-housing market has yet to become a reality. Through the execution of an addition to a Cape Cod-style house, we examine the intersection between prefabricated standardized panels and digital fabrication to produce a mass-customized approach to housing design. Through illustrations and a detailed description of our design process, we will show how digital fabrication technologies allow for customization of mass produced products.
series	ACADIA
email
last changed	2022/06/07 07:50

_id	ijac20064307
id	ijac20064307
authors	Goldberg, Sergio Araya
year	2006
title	Computational Design of Parametric Scripts for Digital Fabrication of Curved Structures
source	International Journal of Architectural Computing vol. 4 - no. 3, 99-117
summary	This paper explores strategies for building toolchains to design, develop and fabricate architectural designs. It explains how complex curved structures can be constructed from flat standard panels. The hypothesis of this research is that by embedding ruled based procedures addressing generative, variational, iterative, and fabricational logics into early phases of design, both design techniques and digital fabrication methods can merge to solve a recurrent problem in contemporary architectural design, building double curved structures. Furthermore it achieves this using common fabrication methods and standard construction materials. It describes the processes of programming computational tools creating and developing designs to fabricate continuous complex curved structures. I describe this through a series of experiments, using parametric design environments and scripted functions, implementing certain techniques to fabricate these designs using rapid prototyping machines. Comparing different design and fabrication approaches I offer a discussion about universal application of programmed procedures into architectural design.
series	journal
last changed	2007/03/04 07:08

_id	ddss2008-02
id	ddss2008-02
authors	Gonçalves Barros, Ana Paula Borba; Valério Augusto Soares de Medeiros, Paulo Cesar Marques da Silva and Frederico de Holanda
year	2008
title	Road hierarchy and speed limits in Brasília/Brazil
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	This paper aims at exploring the theory of the Social Logic of Space or Space Syntax as a strategy to define parameters of road hierarchy and, if this use is found possible, to establish maximum speeds allowed in the transportation system of Brasília, the capital city of Brazil. Space Syntax – a theory developed by Hillier and Hanson (1984) – incorporates the space topological relationships, considering the city shape and its influence in the distribution of movements within the space. The theory’s axiality method – used in this study – analyses the accessibility to the street network relationships, by means of the system’s integration, one of its explicative variables in terms of copresence, or potential co-existence between the through-passing movements of people and vehicles (Hillier, 1996). One of the most used concepts of Space Syntax in the integration, which represents the potential flow generation in the road axes and is the focus of this paper. It is believed there is a strong correlation between urban space-form configuration and the way flows and movements are distributed in the city, considering nodes articulations and the topological location of segments and streets in the grid (Holanda, 2002; Medeiros, 2006). For urban transportation studies, traffic-related problems are often investigated and simulated by assignment models – well-established in traffic studies. Space Syntax, on the other hand, is a tool with few applications in transport (Barros, 2006; Barros et al, 2007), an area where configurational models are considered to present inconsistencies when used in transportation (cf. Cybis et al, 1996). Although this is true in some cases, it should not be generalized. Therefore, in order to simulate and evaluate Space Syntax for the traffic approach, the city of Brasília was used as a case study. The reason for the choice was the fact the capital of Brazil is a masterpiece of modern urban design and presents a unique urban layout based on an axial grid system considering several express and arterial long roads, each one with 3 to 6 lanes,
keywords	Space syntax, road hierarchy
series	DDSS
last changed	2008/09/01 17:06

_id	2006_884
id	2006_884
authors	Grasl, Thomas; Christoph Falkner and Christian Kühn
year	2006
title	Easy access classes for three-dimensional generative design - Using a collaborative environment for e-learning
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 884-889
doi	https://doi.org/10.52842/conf.ecaade.2006.884
summary	Part of an EU funded project to develop a “VIrtual campus for virtual space design Provided for European Architects (VIPA)” was the implementation of a practical run at the Vienna University of Technology. Therein we attempted to evaluate some of the concepts and technologies which were intended for the e-learning platform. After briefly introducing the didactical background, this paper concentrates on the technological setup accompanying the course. Especially the use of Croquet as an immersive three-dimensional environment to teach generative design is highlighted; its strengths and weaknesses in supporting our envisioned didactical concept are analysed. The practical run and its evaluation by the participating students are described, as well as some of the student work performed during and after the course. Concluding remarks elaborating on problems encountered in the software setup and in our didactical concept, followed by the description of future work to amend the above mentioned pitfalls, will mark the end.
keywords	collaborative environment; croquet; generative design; learning platform, virtual space design
series	eCAADe
email
last changed	2022/06/07 07:51

_id	sigradi2006_e090b
id	sigradi2006_e090b
authors	Hanna, Sean and Turner, Alasdair
year	2006
title	Teaching parametric design in code and construction
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 158-161
summary	Automated manufacturing processes with the ability to translate digital models into physical form promise both an increase in the complexity of what can be built, and through rapid prototyping, a possibility to experiment easily with tangible examples of the evolving design. The increasing literacy of designers in computer languages, on the other hand, offers a new range of techniques through which the models themselves might be generated. This paper reviews the results of an integrated parametric modelling and digital manufacturing workshop combining participants with a background in computer programming with those with a background in fabrication. Its aim was both to encourage collaboration in a domain that overlaps both backgrounds, as well as to explore the ways in which the two working methods naturally extend the boundaries of traditional parametric design. The types of projects chosen by the students, the working methods adopted and progress made will be discussed in light of future educational possibilities, and of the future direction of parametric tools themselves. Where standard CAD constructs isolated geometric primitives, parametric models allow the user to set up a hierarchy of relationships, deferring such details as specific dimension and sometimes quantity to a later point. Usually these are captured by a geometric schema. Many such relationships in real design however, can not be defined in terms of geometry alone. Logical operations, environmental effects such as lighting and air flow, the behaviour of people and the dynamic behaviour of materials are all essential design parameters that require other methods of definition, including the algorithm. It has been our position that the skills of the programmer are necessary in the future of design. Bentley’s Generative Components software was used as the primary vehicle for the workshop design projects. Built within the familiar Microstation framework, it enables the construction of a parametric model at a range of different interfaces, from purely graphic through to entirely code based, thus allowing the manipulation of such non-geometric, algorithmic relationships as described above. Two-dimensional laser cutting was the primary fabrication method, allowing for rapid manufacturing, and in some cases iterative physical testing. The two technologies have led in the workshop to working methods that extend the geometric schema: the first, by forcing an explicit understanding of design as procedural, and the second by encouraging physical experimentation and optimisation. The resulting projects have tended to focus on responsiveness to conditions either coded or incorporated into experimental loop. Examples will be discussed. While programming languages and geometry are universal in intent, their constraints on the design process were still notable. The default data structures of computer languages (in particular the rectangular array) replace one schema limitation with another. The indexing of data in this way is conceptually hard-wired into much of our thinking both in CAD and in code. Thankfully this can be overcome with a bit of programming, but the number of projects which have required this suggests that more intuitive, or spatial methods of data access might be developed in the future.
keywords	generative design; parametric model; teaching
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	caadria2006_363
id	caadria2006_363
authors	HSIAO-CHEN YOU, SHANG-CHIA CHIOU, YI-SHIN DENG
year	2006
title	DESIGN BY ACTIONS: An Affordance-based Modeling System in Spatial Design
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 363-369
doi	https://doi.org/10.52842/conf.caadria.2006.x.p3k
summary	From the viewpoint of interaction design, Gibson's affordance concept is interpreted as an emergent action possibility of the physical human-environment-system, which consists of three key components: the user, the environment, and the possible actions. It could help user to perform the suitable action within an artificial environment. This study aims to develop a formal description of affordance in spatial design. Using the formal description as groundwork, an affordance-based modeling system is then proposed to facilitate its further implementation in design and elucidate the new role of users and designers in spatial design. A simplified sink area design is used as an example to illustrate how this affordance-based modeling system works. For users of different conditions, different spatial arrangements in design will affect the performance and users’ behavior as well. This study demonstrates how design by action can be achieved, and then simulates the action sequence of different design solutions to evaluate the system performance.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	caadria2006_151
id	caadria2006_151
authors	IH-CHENG LAI
year	2006
title	AGENT COMMUNICATION FOR ROLE PLAYING IN THE IDEA ASSOCIATION PROCESS
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 151-160
doi	https://doi.org/10.52842/conf.caadria.2006.x.t3c
summary	This paper proposes a framework for the specification of communication mechanisms that regulates interactions among agents participating in role playing in the idea association process. Since agents process a sort of human-like behavior, our approach is made taking as reference human communication characteristics through using role playing as metaphor. Therefore, we first analyze the characteristics of human communication, deriving role playing for linking ideas in the human world. By integrating with ACL mechanisms, we propose a framework to express communication mechanisms for exchanging message in a multi-agent framework called DIM-2. Finally, the framework is evaluated through an experiment. Also its computational feasibility of a support system for the distributed interactions is discussed in this paper.
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	ddss2006-pb-313
id	DDSS2006-PB-313
authors	Jakob Beetz, Jos van Leeuwen, and Bauke de Vries
year	2006
title	Distributed Collaboration in the Context of the Semantic Web
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) 2006, Progress in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN-10: 90-386-1756-9, ISBN-13: 978-90-386-1756-5, p. 313-323
summary	In this paper we are proposing a Multi Agent System (MAS) framework for the facilitation of distributed collaboration in the AEC/FM domain. We are showing how the stack of technologies developed in the Semantic Web community can be put to use for the specific requirements of the building industry. Based on our earlier findings and developments in the area of logic based knowledge representations for the Design and Construction industry, we are outlining how these can form the semantic foundations of internal agent representations and their interconnection using speech acts.
keywords	Collaborative design, Multi-agent systems, Semantic Web
series	DDSS
last changed	2006/08/29 12:55

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