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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	ddss2006-hb-105
id	DDSS2006-HB-105
authors	Stefania Bandini, Sara Manzoni, and Giuseppe Vizzari
year	2006
title	Crowd Modeling and Simulation - The role of multi-agent simulation in design support systems
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. 105-120
summary	The paper presents a Multi Agent Systems (MAS) approach to crowd modelling, based on the Situated Cellular Agents (SCA) model. This is a special class of Multilayered Multi Agent Situated System (MMASS), a model providing an explicit representation of the environment which has a relevant role in supplying agents a context allowing them to act and interact (among themselves and with the environment). The paper will briefly introduce the model and a methodology for the analysis of a crowd scenario and the design of SCA based crowd simulations. The adoption of this kind of system allows evaluating an architectural design with reference to the behaviour of pedestrian that will act in it, given a behavioural specification for these entities. The system is also able to produce a realistic visualization of the simulation, in order to facilitate the communication with involved actors (e.g. in case of participatory decisions).
keywords	Artificial intelligence, Agent technology, Simulation
series	DDSS
last changed	2006/08/29 12:55

_id	2006_738
id	2006_738
authors	Chen, Chiung-Hui and Mao-Lin Chiu
year	2006
title	Space Tags and User Behavior Modeling - Applying agents to detect navigational patterns in urban streets
doi	https://doi.org/10.52842/conf.ecaade.2006.738
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 738-745
summary	Urban pedestrian studies on navigation have been conducted for developing applications to ease the task of exploring in a virtual environment. As navigation in virtual environments is evidently difficult and as many virtual worlds have been designed to be used by untrained visitors that explore the environment, navigational supports are critically needed. This study is aimed to collect information about the user needs in order to build a model of user preference and produce simulative scenarios that can reveal the navigational patterns related to street design. The study is based on the attention theory for studying people who are socially interacting with street activities and furniture within designated areas. Furthermore, the study attempts to apply agent interface develop a prototype system with space tags. Finally, the system and its applications, and major findings of these applications are reported
keywords	space tags; navigational patterns; street; agent interface; user behavior
series	eCAADe
email
last changed	2022/06/07 07:55

_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-151
id	DDSS2006-HB-151
authors	Jean-Marie Boussier, P. Estraillier, D. Sarramia, and M. Augeraud
year	2006
title	Approach to Design Behavioural Models for Traffic Network Users - Choice of transport mode
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. 151-166
summary	Our research work concerns the development of a multimodal urban traffic simulator designed to be a tool of decision-making aid similar to a game wherein the user-player can test different scenarios by immersion in a 3D virtual city. Our approach is based on the activity-based model and the multi-agent technology. The implemented result is a hybrid simulator connecting numerical simulation and behavioural aspects coming from real data. This paper is focused on two points: firstly, we introduce how a final user (the traffic regulator) instantiates and assembles components so as to model a city and its urban traffic network; secondly, we present the use of Dempster-Shafer theory in the context of discrete choice modelling. Our approach manipulates input variables in order to test realistic representations of behaviours of agent categories in a decision-making process. The traffic modelling is based on a questionnaire elaborated from standard arrays of Taguchi. The significant variables and interactions are determined with the analysis of variance which suggests a reduced model describing the behaviour of a particular social category. The belief theory is used to take into account the doubt of some respondents as well as for the preferences redistribution if the number of alternatives changes. The effects of external traffic conditions are also quantified to choose a 'robust' alternative and to use the agents' memory.
keywords	Urban traffic simulator, Virtual city, Multi-agent system, Behavioural model, Transport mean, Taguchi's method, Belief theory
series	DDSS
last changed	2006/08/29 12:55

_id	ddss2006-pb-3
id	DDSS2006-PB-3
authors	Massimiliano Petri, Alessandra Lapucci, Diana Poletti, and Silvana Lombardo
year	2006
title	An Internet Survey for an Activity-Based Model - An urban transportation analysis integrated in a G.I.S. environment
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. 3-17
summary	The current research deals with the development of an Activity-Based Multi Agent System fully implemented in a G.I.S. framework and applied to the case study of the historical centre of Pisa. The objective is to create a simulation tool for Pisa population transfers in order to verify how transport demand varies because of interventions on traffic plan (e.g. creating urban areas subject to a toll access for vehicles), or on public transport lines, or on new activities location (e.g. supermarkets, public services etc.). Three different parts of the System have been simultaneously carried out: the first concerns a population sample survey, the second deals with geographical data structuring and the last one, still in elaboration progress, tests the model reliability to estract and implement behavioural rules. The results obtained till now show how the Database itself, containing temporal data about agents activities (extracted by the population sample questionnaire) and urban services the city offers, already represents an important instrument to support decision making process.
keywords	Activity-Based Model, G.I.S., Network Analysis, Decision Trees
series	DDSS
last changed	2006/08/29 12:55

_id	acadia06_148
id	acadia06_148
authors	Cabrinha, Mark
year	2006
title	Synthetic Pedagogy
doi	https://doi.org/10.52842/conf.acadia.2006.148
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 148-149
summary	As tools, techniques, and technologies expand design practice, there is likewise an innovation in design teaching shifting technology from a means of production and representation to a means of discovery and development. This has implications on studio culture and design pedagogy. Expanding the skills based notion of digital design from know-how, or know-how-to-do, toward know-for, or knowledge-for-action, forms a synthetic relationship between the skills necessary for action and the developing motivations of a young designer. This shifts digital design pedagogy to a medium of active inquiry through play and precision. As digital tools and infrastructure are now ubiquitous in most schools, including the increasing digital material exchange enabled through laser cutters, CNC routers, and rapid prototyping, this topic node presents research papers that engage technology not simply as tools to be taught, but as cognitive technologies which motivate and structure a design students knowledge, both tacit and explicit, in developing a digital and material, ecological and social synthetic environment. Digital fabrication, the Building Information Model, and parametric modeling have currency in architectural education today yet, beyond the instrumentality of teaching the tool, seldom is it questioned what the deeper motivations these technologies suggest. Each of these tools in their own way form a synthesis between representational artifacts and the technological impact on process weaving a wider web of materials, collaboration among peers and consultants, and engagement of the environment that the products of design are situated in.If it is true that this synthetic environment enabled by tools, techniques, and technologies moves from a representational model to a process model of design, the engagement of these tools in the design process is of critical importance in design education. What is the relationship between representation, simulation, and physical material in a digitally mediated design education? At the core of synthetic pedagogies is an underlying principle to form relationships of teaching architecture through digital tools, rather than simply teaching the tools themselves. What principles are taught through teaching with these tools, and furthermore, what new principles might these tools develop?
series	ACADIA
email
last changed	2022/06/07 07:54

_id	caadria2006_111
id	caadria2006_111
authors	DAVID HARRISON, MICHAEL DONN
year	2006
title	USING WEB 2.0 TECHNOLOGIES TO PRESERVE DESIGN HISTORY AND IMPROVE COLLABORATION
doi	https://doi.org/10.52842/conf.caadria.2006.x.a7m
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 111-117
summary	This paper describes ongoing research into how emerging Internet concepts used in conjunction with existing Information Technologies (IT) can improve inter-project communication and understanding. The emphasis of the research is to use technology as an enabler to share personal thoughts and enhance the conversation that takes place within a development team. It stems from the observation that the emphasis of many new Architecture, Engineering and Construction (AEC) technologies is to minimise and diffuse project conversation with highly complex, machine interpretable building information models.Project teams are usually brought together for a relatively short but intense period of time. Following project completion these unique teams are dissolved just as quickly and often are never formed again. As a consequence it is difficult to justify the investment in time and resources required to implement complex IT-based collaboration solutions. A further barrier to adoption is the differential application of IT skills across the AEC industry. Therefore in order for a new technology to gain broad acceptance and be most beneficial it must be applicable to the broadest audience with the minimum investment required from all parties. The primary objective of this research is to preserve the rich design history of a project from conception to completion. Submitted information can be intelligently searched using the meta-data sourced from syndicated data feeds about team members, project timelines, work diaries and email communication. Once indexed users can tag documents and messages in order to provide a further, far richer layer of meta-data to assist in searching, identification of issues and semantic clarification. This strategy of defining AEC semantics through social interaction differs greatly from that of more complex, computer interpretable solutions such as Industry Foundation Classes. Rather than abstracting information to suit a generic yet highly intelligent building model, the emphasis is on preserving the participant’s own thoughts and conversation about decisions and issues in order to create a forum for intelligent conversation as the design evolves.
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	sigradi2006_e172c
id	sigradi2006_e172c
authors	Donath, Dirk and González Böhme, Luis Felipe
year	2006
title	A Constraint-Based Building Bulk Design Support
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 278-282
summary	We introduce an architecture practice-oriented implementation strategy of constraint-based methods called BDS (Building Bulk Design Support) to supporting bulk analysis during the architectural programming phase. We examine the optmization problem of site coverage and building massing according to a set of standard planning and zoning regulations, and try a problem solving approach based on the paradigm of constraint satisfaction problems. The case study, which is focused on the paticipatory planning of very low-income dwellings within the Latin American context, serves as testbed for a prototypical application of the adopted methodology. The BDS constitutes a novel approach on computer-aided bulk analysis, regarding this particularly relevant context of application. In the case of participatively planned low-income housing projects, efficiency regarding time and cost of planning directly affects dwellers’ quality of life, whereas elementary programming tasks such as bulk analysis lack appropriate state-of-the-art technological support. Traditional architectural planning methods demand a large domain-specific knowledge base and skillful planners. A planning process, which is mainly driven by the formulation of planning-relevant constraints and sets of solution alternatives, suggests to avoid architects’ traditional procedure of: 1. Create an (yet not necessarily valid) instance of the eventual design solution by directly choosing specific values for its shape parameters. 2. Evaluate its validity by confronting the designed model to a set of applicable constraints, which have to be satisfied. Instead, the constraint-based design methodology poses a search procedure that operates in a space of pertinent constraint sets. A computer-aided interactive search procedure to find more valid design solution alternatives in less time and with less effort is particularly qualified to supply efficient support for participatory planning activities carried out between dwellers and planners. The set of solutions for a building-bulk design problem is constrained by both a large complex system of planning and zoning regulations and the geometry of the eventual design solution itself. Given a considerable amount of such regulations, a regular size geometric constraint satisfaction system proved to be capable of providing a highly efficient, interactive modeling and evaluation tool for the formulation in real time of valid solution alternatives for an ordinary building-bulk design problem. A BDS implementation will constitute one system module of a larger integrated system model called Esther. A BDS tool shall interact with other functional modules, like e.g. the FLS (Floor plan Layout Support), which also uses constraint-based design methods.
keywords	constraint-based design; bulk analysis; participatory planning; low-income housing; design theory; design proces
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	ddss2006-hb-203
id	DDSS2006-HB-203
authors	Gerhard Zimmermann
year	2006
title	Multi-Agent Model to Multi-Process Transformation - A housing market 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. 203-219
summary	Simulation is a means to help urban planners and investors to optimize inhabitant satisfaction and return on investment. An example is the optimal match between household preferences and property profiles. The problem is that not enough knowledge exists yet about dynamic user activity models to build reliable and realistic simulators. Therefore, we propose a modeling and software technique that produces simulator prototypes very efficiently for the development, test, and evaluation of many different user activity models, using executable models, code generation, and a domain specific software process. As a specific feature, the model is based on many agents acting independently from each other and that are mapped in several refinement steps into the same number of concurrent processes. The housing example is used as a case study to explain the process and show performance results.
keywords	Agent technology, User activity modeling, User activity simulation, Software engineering, Code generation, Software process
series	DDSS
last changed	2006/08/29 12:55

_id	ddss2006-pb-343
id	DDSS2006-PB-343
authors	Jumphon Lertlakkhanakul, Sangrae Do, and Jinwon Choi
year	2006
title	Developing a Spatial Context-Aware Building Model and System to Construct a Virtual Place
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. 343-358
summary	The current notion of space seems to be inappropriate to deal with contemporary and future CAAD applications because it lacks of user and social values. Instead of using a general term called 'space', our approach is to consider the common unit in architectural design process as a place composed of space, user and activity information. Our research focuses on developing a novel intelligent building data model carrying the essence of place. Through our research, the needs of using virtual architectural models among various architectural applications are investigated at first step. Second, key characteristics of spatial information are summarized and systematically classified. The third step is to construct a semantically-rich building data model based on structured floor plan and the semantic location modeling. Then intermediate functions are created providing an interface between the model and future applications. Finally, a prototype system, PlaceMaker, is developed to demonstrate how to apply our building data model to construct virtual architectural models embodying the essences of place.
keywords	Spatial context-aware building model, Spatial reasoning, Virtual place, Location modeling, Design constraint
series	DDSS
last changed	2006/08/29 12:55

_id	acadia06_079
id	acadia06_079
authors	Kumar, Shilpi
year	2006
title	Architecture and Industrial Design A Convergent Process for Design
doi	https://doi.org/10.52842/conf.acadia.2006.079
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 79-94
summary	The use of technology has grown with the way design professions have evolved over time. Changing needs, desires of comfort, and perceptions of the consumers have led to a distinct improvement in the design of both product and architecture. The use of the digital media and emerging technologies has brought a dramatic change to the design process allowing us to view, feel, and mould a virtual object at every stage of design, development, and engineering. Change is often quick and easy since a virtual product does not inherently carry the biases of its physical counterpart. In order to communicate ideas across the team, digital processes are also used to bring together opinions, experiences, and perspectives. These methods encourage decision making based on information rather than prejudice or instinct. Thus, digital exchanges (technology) impact firm strategies at three levels: product, process, and administrative or support activities (Adler 1989).Digital tools for design exchange in Industrial Design (ID) began much earlier than many other professions. The profession of Architecture is also slowly moving to a similar model with digital exchange finding increasing prevalence in drawing, modeling, performance simulation, design collaboration, construction management, and building fabrication. The biggest problem is the disintegrated use of technology in the architectural profession without a strategy toward streamlining the design process from conception to fabrication. In this paper we investigate how the use of technology has evolved in the professions of Industrial Design and Architecture comparatively in their product, process, and support activities. Further, we will present a set of guidelines that will help architects in the convergence of design process, helping in a more efficient work flow with a strategic use of digital technology.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	ddss2006-hb-187
id	DDSS2006-HB-187
authors	Lidia Diappi and Paola Bolchi
year	2006
title	Gentrification Waves in the Inner-City of Milan - A multi agent / cellular automata model based on Smith's Rent Gap theory
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. 187-201
summary	The aim of this paper is to investigate the gentrification process by applying an urban spatial model of gentrification, based on Smith's (1979; 1987; 1996) Rent Gap theory. The rich sociological literature on the topic mainly assumes gentrification to be a cultural phenomenon, namely the result of a demand pressure of the suburban middle and upper class, willing to return to the city (Ley, 1980; Lipton, 1977, May, 1996). Little attempt has been made to investigate and build a sound economic explanation on the causes of the process. The Rent Gap theory (RGT) of Neil Smith still represents an important contribution in this direction. At the heart of Smith's argument there is the assumption that gentrification takes place because capitals return to the inner city, creating opportunities for residential relocation and profit. This paper illustrates a dynamic model of Smith's theory through a multi-agent/ cellular automata system approach (Batty, 2005) developed on a Netlogo platform. A set of behavioural rules for each agent involved (homeowner, landlord, tenant and developer, and the passive 'dwelling' agent with their rent and level of decay) are formalised. The simulations show the surge of neighbouring degradation or renovation and population turn over, starting with different initial states of decay and estate rent values. Consistent with a Self Organized Criticality approach, the model shows that non linear interactions at local level may produce different configurations of the system at macro level. This paper represents a further development of a previous version of the model (Diappi, Bolchi, 2005). The model proposed here includes some more realistic factors inspired by the features of housing market dynamics in the city of Milan. It includes the shape of the potential rent according to city form and functions, the subdivision in areal submarkets according to the current rents, and their maintenance levels. The model has a more realistic visualisation of the city and its form, and is able to show the different dynamics of the emergent neighbourhoods in the last ten years in Milan.
keywords	Multi agent systems, Housing market, Gentrification, Emergent systems
series	DDSS
last changed	2006/08/29 12:55

_id	2006_574
id	2006_574
authors	Mark, Earl
year	2006
title	Animating the Design Studio
doi	https://doi.org/10.52842/conf.ecaade.2006.574
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 574-581
summary	Computer animation is based on software that is optimized to show transformation or change. For the animator, such change may represent the movement of people, objects or light, or a series of events comprising a short story. Studying change is also a designer’s interest in objects made to transform or respond to varied environmental or phenomenal conditions. In addition, the study of change can be focused on the process of design itself, a series of steps taken in the making of a geometrical model for a building project. In this last sense of change, animation technology offers a means to retain and rework the distinct history of how one “upstream” or early design decision impacts the evolution of a design as it is refined “downstream”. Moreover, when customized through a macro program, animation technology can more easily allow for early “upstream” design decisions to be revisited and modified with minimal disruption to “downstream” moves that had initially followed. That is, a designer can revise a geometrical modeling decision made at an earlier moment in a design process without having to completely redo other dependent changes to the model that had previously followed that moment. This paper reports on how animation software, rather than more typical CAD software, was harnessed to facilitate a design studio Macro programming an animation system exploited its core technology to provide access to a more process based approach to modeling.
keywords	Computer Animation; Design Decision Making; Key Frames; Macro Level Programming; Geometrical Modeling; Design Studio
series	eCAADe
email
last changed	2022/06/07 07:59

_id	acadia06_278
id	acadia06_278
authors	Mathew, Anijo
year	2006
title	Aesthetic Interaction A Model for Re-thinking the Design of Place
doi	https://doi.org/10.52842/conf.acadia.2006.278
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 278-291
summary	We live in a landscape of digital information and communication. Digital technology finds pervasive application in many aspects of modern habitable spaces— environmental control systems, internet based systems for information exchange, cellular systems for instant communication, and the list goes on. In fact, recent Intel studies show that every day we encounter at least 150 different computing devices in our living environments. As computing initiatives evolve intelligent devices that work in the background of our day to day living, several questions arise about how we interact with these devices. The design of “smart” places will eventually involve the seamless integration of both the physical and virtual. Such interventions will lead to a transformation in the way we design. Architects will increasingly find themselves using the computer in design as opposed to design. Over the last few years our lab has been working on several projects, from the level of a room to the level of urban design, that use embedded interactivity and computing as part of the design. This paper describes three such projects, completed at different times, which deal with different problems and the overall impact of computing on the way the designs were developed. The description and evaluation of these projects will be used to develop a theory for the use of pragmatist aesthetics for “information interchange” within architectural design. In short, the paper will explore the evolution of Computer “Aided” Design from a model for designing architecture to a model for designing computing within architecture through aesthetic interaction.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	ddss2006-hb-167
id	DDSS2006-HB-167
authors	Michael Balmer and Kai Nagel
year	2006
title	Shape Morphing of Intersection Layouts Using Curb Side Oriented Driver Simulation
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. 167-183
summary	In a traffic network, capacities of parts of the network restrict the amount of transport that can be handled by this network. The capacity of a given traffic network element is not fixed, but influenced by parameters such as number of lanes, maximum speed, weather, view horizon, and so on. These parameters also define the maximum capacity of complicated intersections. Special shapes of intersections, particularly in urban regions, may further increase or decrease their capacity. This paper investigates an evolutionary algorithm to automatically improve the geometrical layout of parts of an urban network according to externally specified criteria. The paper consists of two main parts. In the first part, a simulation model is described which is able to produce realistically behaving vehicles only by using information about the curb side locations of the roads. This avoids the need to use lane connectivity, signal plans, etc. - which are details that would change during a change of the intersection layout. In the second part of the paper, the simulation changes the road and intersection layouts based on the behaviour of the vehicles. Using a feedback loop allows one to optimize the capacity of the modelled road system while its spatial extents are minimized. As a case study, a special roundabout is examined: 'Central' in downtown Zurich, Switzerland. The particularity of this roundabout is that it partially behaves like a roundabout but also contains two uncontrolled intersections. Due to its central position in the city, the roundabout is very busy with both individual cars and public transport vehicles.
keywords	Agent simulation method, Intersection layout, Evolutionary algorithm
series	DDSS
last changed	2006/08/29 12:55

_id	ascaad2006_paper13
id	ascaad2006_paper13
authors	Ambrose, Michael A.
year	2006
title	Plan is Dead: to BIM or not to BIM, that is the question
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	Drawing, modeling and the explicit abstraction embedded in the traditions and conventions of visual communication through composition and representation are fundamental to the how, why and what of architectural design. BIM presents simulation as an antiabstract means of visual communication that seeks to displace the discreet representation of plan, section and elevation with the intelligent object model. If plan is dead, the implication is that the value of abstraction is dead or dying as well. How can architectural education prepare students for digital practice with such an assault on the underlying role of abstract representation of formal and spatial constructs that constitute architecture? This paper explores a possible path for engaging digital media in education that explores the gap between design theory and digital practice. The investigation centers on ways of exploring architecture by developing teaching methods that reprioritize ways of seeing, thinking and making spatial design. Digital architectural education has great opportunity and risk in how it comes to terms with reconceptualizing design education as the profession struggles to redefine the media and methods of architectural deliverables in the age of BIM.
series	ASCAAD
email
last changed	2007/04/08 19:47

_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_e048c
id	sigradi2006_e048c
authors	Beck, Mateus Paulo; Brener, Rafael; Giustina, Marcelo and Turkienicz, Benamy
year	2006
title	Light and Form in Design – A Computational Approach
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 254-257
summary	Shape perception is strongly influenced by the reciprocal relation between light and form. Computational applications can increase the number of design alternatives taking into account possible variations in the relation between light and form. The aim of this study is to discuss a pedagogical experience carried out with 5th semester architectural students, based on a series of exercises prior to the term project. The exercises were concerned with the relation between light and form from an aesthetical point of view and should be understood as examples for the use of computers as tools to creatively accelerate the process of design and learning. The paper is divided in five parts. The first one describes the conceptual background for the exercises, a descriptive method for the identification of light effects in architectural objects based on ideas of shape emergence. The exercises’ methodology is explained in the second part, referring to the use of computational applications in 3-dimensional modeling, material and light simulation. The methodology includes different phases: –creation of bi-dimensional compositions according to symmetry operations; –creation of a minimal living space assigning functions to spaces originated from the former composition; –analysis of the impact of light on the form and spaces created; –alteration of form and materials creating new light effects considering the functions related to the spaces. The exercises alternate work in computational environment in two and three dimensions with the use of mockups, lamps and photography. In the third part the results –student’s design steps– are described. In the fourth part the results are analyzed and some conclusions are outlined in the fifth and last part. The use of emergent forms combined with computational tools has proved to be an effective way to achieve an accelerated understanding of the impact of light on forms as demonstrated by the evolution of the students work during the term and by their final results concerning the term project.
keywords	Architectural Design; Lighting; Design Simulation; Virtual Environment
series	SIGRADI
email
last changed	2016/03/10 09:47

_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	acadia06_232
id	acadia06_232
authors	Chaisuparasmikul, Pongsak
year	2006
title	Bidirectional Interoperability Between CAD and Energy Performance Simulation Through Virtual Model System Framework
doi	https://doi.org/10.52842/conf.acadia.2006.232
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 232-250
summary	The paper describes a novel approach involving interoperability, data modeling technology, and application of the building information model (BIM) focused on sustainable architecture. They share relationships and multiple experiences that have existed for years but have never have been proven. This interoperability of building performance simulation maps building information and parametric models with energy simulation models, establishing a seamless link between Computer Aided Design (CAD) and energy performance simulation software. During the last four decades, building designers have utilized information and communication technologies to create environmental representations to communicate spatial concepts or designs and to enhance spaces. Most architectural firms still rely on hand labor, drafted drawings, construction documents, specifications, schedules and work plans in traditional means. 3D modeling has been used primarily as a rendering tool, not as the actual representation of the project.With this innovative digitally exchange technology, architects and building designers can visually analyze dynamic building energy performance in response to changes of climate and building parameters. This software interoperability provides full data exchange bidirectional capabilities, which significantly reduces time and effort in energy simulation and data regeneration. Data mapping and exchange are key requirements for building more powerful energy simulations. An effective data model is the bidirectional nucleus of a well-designed relational database, critical in making good choices in selecting design parameters and in gaining and expanding a comprehensive understanding of existing data flows throughout the simulation process, making data systems for simulation more powerful, which has never been done before. Despite the variety of energy simulation applications in the lifecycle of building design and construction projects, there is a need for a system of data integration to allow seamless sharing and bidirectional reuse of data.
series	ACADIA
email
last changed	2022/06/07 07:55

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