Cumincad : CUMINCAD Papers : Search Results

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	acadia06_104
id	acadia06_104
authors	Barrow, Larry R.
year	2006
title	Performance House: A CADCAM Modular House System
doi	https://doi.org/10.52842/conf.acadia.2006.104
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 104-121
summary	Millions of persons around the globe live in low quality indigenous, or Manufactured Housing (MH) systems that often result in low “performance” undesirable living environments and, at times, life threatening habitation. Our research has explored mass production principles in product design and architecture, currently at the single family housing scale, with a focus on the recent devastation along the US Gulf Coast as a result of hurricane impact, most notably hurricane Katrina.“Modern architecture” theoreticians have conceived, written, prototyped and even launched business ventures in an attempt to bring their manufactured housing “ideas” to fruition. However, architects have generally had little “long-term” impact in the area of manufactured housing strategies and the current manufactured housing industry remains archaic and problematic. This paper includes our research of other architects attempts to leverage technology in the manufactured housing industry; additionally, we analyzed current problems in the US mass housing industry. We then derived a set of “design criterion” as a means of anchoring our design inquiry for a proposed factory-built modular house system.Our research encompasses both process and product innovation; this paper reflects on our use of technology to leverage an Industrial Design (ID) process that is inclusive of many “design” partners and team members. We are using both virtual and physical output representation and physical prototyping for a factory-built house system; our Research and Development (R&D) is on-going with our collaborating design-manufacture engineering partners from the automotive, furniture and aerospace research labs here at Mississippi State University. Our goal is to use “industrial design” principles to produce mass housing components that provide durable-sustainable housing.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	2006_690
id	2006_690
authors	Chuen-huei Huang, Joseph and Robert Krawczyk
year	2006
title	i_Prefab Home - Customizing Prefabricated Houses by Internet-Aided Design
doi	https://doi.org/10.52842/conf.ecaade.2006.690
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 690-698
summary	The paper demonstrates a web-based system for use in the area of prefabricated housing to assist the customer and architect in selecting appropriate building components. By collecting and evaluating client’s requirements with web technology, a methodology can be developed that can generate design options based on the client’s needs and available modular components in the market, and simulate the final design before beginning manufacturing. In this proposed model, a process of providing mass-customized prefabricated housing based on computer-aided design and a web-based product configuration system will be presented. How prefabricated housing design can be evolved from a mass repetitive production level to a mass customization level to meet variability and personality is the primary issue to be explored in this research.
keywords	Web-based design; clients input; mass customization; prefabrication
series	eCAADe
email
last changed	2022/06/07 07:56

_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	sigradi2006_p043d
id	sigradi2006_p043d
authors	dos Santos Cabral Filho, José and Baltazar do Santos, Ana Paula
year	2006
title	Tenda Digital/Digital TENT (Technological Environment for Negotiated Topology) e suas possíveis implicações em contextos sociais [Digital TENT (Technological Environment for Negotiated Topology)]
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 346-349
summary	This article approaches the social use of digital immersive environments in two different realms. One aiming at the digital training of self-builders involved in participatory design of affordable housing and the other dealing with experimental connection of lowincome communities (favelas) placed at different geographic locations. It first describes the specific digital immersive environment called Digital TENT, developed at IBPA/LAGEAR, which aims to investigate the production of space by means of bodily engagement with images within the perspective of the experience rather than that of the spectacle. Subsequently, it discusses the conceptual basis of the TENT (Technological Environment for Negotiated Topology) as opposed to the CAVE (Cave Automatic Virtual Environment), This discussion is deepened into a critique of the visual representation of space opposed to the possibility of dynamic creation of environments that only happen in present time with peoples' interaction, Such a critique, associated with two social experiences carried out by IBPA/ LAGEAR, leads to the conclusion that the Digital TENT is effective for both supporting visualization processes and spatial negotiation in participatory design, and also as a place for enhancing the very experience.
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	2006_860
id	2006_860
authors	Duarte, José P. and João Rocha
year	2006
title	A Grammar for the Patio Houses of the Medina of Marrakech - Towards a Tool for Housing Design in Islamic Contexts
doi	https://doi.org/10.52842/conf.ecaade.2006.860
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 860-866
summary	The goal of the research described in this paper is to develop a computational model of the Medina of Marrakech in Morocco. The ultimate goal is to develop a system that could capture some of the characteristics of traditional Muslim cities fabric and use it in contemporary urban planning. Previous papers have proposed the use of three grammars to encode the spatial complexity of the Medina: the urban grammar, the negotiation grammar, and the housing grammar, and addressed the development of the urban grammar. This paper proposes a grammar to describe the formal structure of the houses, the first step in the developments of the remaining two grammars. It describes the set of rules and then illustrates its application in the generation of an existing house. The basic formal structure consists of three concentric rectangular rings with the patio in the middle. The location of the entrance and the staircase are fundamental for the definition of the basic layout.
keywords	Shape grammars; housing design; Islamic architecture
series	eCAADe
email
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
doi	https://doi.org/10.52842/conf.acadia.2006.426
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 426-439
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	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	sigradi2006_e171c
id	sigradi2006_e171c
authors	González Böhme, Luis Felipe and Vargas Cárdenas, Bernardo
year	2006
title	Foundations for a Constraint-Based Floor Plan Layout Support in Participatory Planning of Low-Income Housing
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 283-287
summary	We introduce the foundations of a novel approach that deals with constraint-based design methods to supporting participatory planning processes of low-income dwellings. We examine the space allocation problem inside the architectural domain on the basis of graph theory and combinatorics, providing a concise mathematical background for an implementation strategy called FLS (Floor plan Layout Support), which is analyzed here for the first time regarding this particular context of application. The philosophy underlying a design method that is mainly driven by the formulation of distinct constraints suggests to avoid the traditional procedure of first to create a yet not necessarily valid instance of the eventual design solution by directly choosing specific parameter values of its shape, and later on to evaluate its validity by confronting the designed model to a set of applicable constraints. Instead, constraint-based design poses a search procedure that operates in a space of planning-relevant constraint sets. The FLS methodology integrates some few principles of constraint-based automated reasoning with high user interactivity, into a design environment where as much dwellers as planners can collaboratively work in solving spatial organization problems of housing projects. The FLS model of application makes use of a combination of dweller-specified constraints, planning and zoning regulations, and a small library of modular space units. Constraint-based design ! methods are particularly capable of supplying efficient support for the collaborative involvement of dwellers into the architectural programming process of her/his own home. Mainly, because dwellers themselves tend to describe their space need and design intentions as a set of constraints on room quantity, space utilization, circulation system, allocation of available furniture, available budget, construction time, and so forth. The goal is to achieve an integrated tool for finding and modelling topologically valid solutions for floor plan layout alternatives, by combining user-driven interactive procedures with automatic search and generative processes. Thus, several design alternatives can be explored in less time and with less effort than using mainstream procedures of architectural practice. A FLS implementation will constitute one system module of a larger integrated system model called Esther. A FLS tool shall interact with other functional modules, like e.g. the BDS (Building Bulk Design Support), which also uses constraint-based design methods. A preliminary procedural model for the FLS was tested on Chile’s official social housing standards (Chilean Building Code – OGUC. Art. 6.4.1) which are very similar to most Latin American housing programs currently in operation.
keywords	constraint-based design; floor plan layout; participatory planning; low-income housing; design theory; design proces
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	sigradi2006_e081d
id	sigradi2006_e081d
authors	Hecker, Douglas
year	2006
title	Dry-In House: A Mass Customized Affordable House for New Orleans
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 359-362
summary	Dry-in house is a mass customized affordable housing system proposed for the reconstruction of New Orleans. The dry-in House gets the owner back to their home site quickly while providing the infrastructure an occupant needs (shelter, water, electricity). The owner is supplied with an inhabitable shell that is customizable before it is fabricated as well as onsite as the project is “fitted out” over time. The key concept is to allow families to participate in the design of their customized homes and to get people back to their home sites as quickly as possible and to give them the opportunity to finish and further customize their home over time. The project addresses inefficiencies and redundancies in emergency housing currently provided by FEMA. Primarily the dry-in House as its name implies provides a timely dried-in space which doubles as a customized infrastructure for the reconstruction of homes and neighborhoods. The project is designed to meet the $59,000 life cycle cost of the presently provided temporary housing, the notorious “FEMA Trailer”. However, the Dry-in House provides a solution that: a) Is permanent rather than temporary. The house will be finished and further customized over time rather than disposed of. b) Reoccupies the owner’s home site rather than a “FEMA ghetto” keeping the community together and functioning. c) Is mass customized rather than mass-standardized allowing the owner to have input on the design of their home. The design is a “starter home” rather than an inflexible and over-determined solution. This also has the benefit of giving variation to the reconstruction of New Orleans as opposed to the monotony of mass-production. d) Allows the owners to further customize their home over time with additional exterior finishes and the subdivision and fit out of the interior. By utilizing plate truss technology and associated parametric modeling software, highly customized trusses can be engineered and fabricated at no additional cost as compared to off-the-shelf trusses. This mass customization technology is employed to create the building section of each individual’s house. The truss is not used in its typical manner, spanning over the house; rather, it is extruded in section to form the house itself (roof, wall, and floor). Dry-in House exploits this building technology to quickly rebuild communities in a sensible manner. It allows for an increased speed of design and construction and most importantly it involves the owner in this process. The process has other benefits like reducing waste not only because it replaces the FEMA trailer which is expensive and disposable but also since the components are prefabricated there is more precision and also quality. The Dry-in House allows the owner-designer to “draw” the section of their new home providing them with a unique design and a sense of belonging and security. The design of the section of the house also provides them with spatial configurations customized relative to site conditions, program etc... Because of the narrow lot configuration of New Orleans, the design maximizes the roof as a source for natural ventilation and light for the interior of the house. In addition, the house is one room deep providing cross ventilation in all rooms minimizing reliance on artificial mechanical systems. The timely and efficient off site fabrication of building sections facilitate larger concentrations of volunteers on site at one time, thereby promoting a greater collective spirit among the community and volunteer workforce, a therapeutic event for the community as they participate in the rebuilding of their homes and city. With individualized building sections arriving on site, the construction process is imagined to be more akin to a barn raising, making possible the drying in of multiple houses in less than one day.
keywords	mass customization; digital manufacturing; affordable housing
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	sigradi2006_c067d
id	sigradi2006_c067d
authors	Hernández Ibáñez, Luis; Juan D. Blanco; José A. Iglesias; Javier Taibo; Antonio Seoane; Alberto Jaspe and Rocío López
year	2006
title	El Museo Vacío. Uso de una instalación transitable de Realidad Virtual para la experimentación espacial de una unidad habitacional en un asentamiento prerromano. [“The Empty Museum” - Use of an immersive VR room to experience the space inside a pre-Roman housing unit]
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 363-367
summary	This paper describes the use of a existing Virtual Reality installation developed by the authors named the Empty Museum that allows the users to walk physically into a virtual space. It is used in this case to explore a bronze age housing unit actually being excavated in the settlement of San Cibran de Las (Spain). The project involved a recreation of the architecture, domestic objects and characters related to the ancient Castro culture following an archaeological and historical point of view. The visitor explores the place by walking inside the kitchen of the house, examining several points of interest while triggering explanatory speeches related to what is displayed. The user can also watch the living in the settlement looking through the openings of the virtual building and interact with the virtual inhabitants of the house as he or she physically walks around them.
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	ascaad2006_paper9
id	ascaad2006_paper9
authors	Huang, Joseph, C. H.; Robert J. Krawczyk and George Schipporeit
year	2006
title	Integrating Mass Customization with Prefabricated Housing
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	The paper will give an overview of mass customization concepts and how they can be applied to prefabricated modular housing. By collecting and evaluating client’s requirements with web technology, a methodology can be developed that can generate design options based on the client’s needs and available modular components in the market, and simulate the final design before beginning manufacturing. In this proposed model, a process of providing masscustomized prefab housing based on computer-aided design and a web-based product configuration system will be presented.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	caadria2006_637
id	caadria2006_637
authors	J. JINU LOUISHIDHA KITCHLEY
year	2006
title	GENERATIVE EVOLUTIONARY DESIGN AND EVALUATION OF CLUSTER SETTLEMENT PATTERNS
doi	https://doi.org/10.52842/conf.caadria.2006.x.w5t
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 637-639
summary	This project proposes a generative model for a layout of an organic settlement, in particular fishermen’s settlements. It attempts to harness and integrate some of the qualities of organic design process into computer-aided design, capture the complexities of an organic solution and apply it to the housing design decisions. The two complementary fields of Shape Grammar and Generative Evolutionary Design have been converged for this purpose. Shape Grammar is used to extract the style and aspects of organically evolved fisherman’s housing settlement. Generative Evolutionary Design which uses genetic algorithms as a search mechanism is used to explore alternatives and to evaluate the generated design for its functional and usability values and identify the fitter solutions.
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	caadria2006_203
id	caadria2006_203
authors	JOSEPH C. H. HUANG, ROBERT J. KRAWCZYK, GEORGE SCHIPPOREIT
year	2006
title	MASS CUSTOMIZING PREFABRICATED MODULAR HOUSING BY INTERNET-AIDED DESIGN
doi	https://doi.org/10.52842/conf.caadria.2006.x.c8r
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 203-208
summary	By collecting and evaluating client’s requirements with web technology, a methodology can be developed that can generate design options based on the client’s needs and available modular components in the market, and simulate the final design before beginning manufacturing. In this proposed model, a process of providing mass-customized prefabricated housing based on computer-aided design and a web-based product configuration system will be presented. How prefabricated housing design can be evolved from a mass repetitive production level to a mass customization level to meet variability and personality is the primary issue to be explored in this research.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	sigradi2006_e029b
id	sigradi2006_e029b
authors	Kotsopoulos, Sotirios
year	2006
title	Integrating Computation in Foundation Design Instruction
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 166-170
summary	The paper outlines notions suitable for the introduction of computation at the first stages of design education. An exercise, based on a housing competition sponsored by the Habitat For Humanity in Boston, Massachusetts, is presented. The educational objective of the paper is to offer an elementary case of how computation can be used in designing from scratch, in the architectural studio. Shape grammar formalism, analogue, and CAD tools are combined in this effort.
keywords	Analogue-Digital; Foundation Design; Rule-based Composition
series	SIGRADI
email
last changed	2016/03/10 09:54

_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	ddss2006-pb-153
id	DDSS2006-PB-153
authors	Linda Ma, Theo Arentze, Aloys Borgers, and Harry Timmermans
year	2006
title	A Multi-Agent Model for Generating Local Land-Use Plans in the Context of an Urban Planning Support System
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. 153-168
summary	In a multi-player urban planning process, the outcome of any individual decision of the actors is uncertain until a state where the plan is satisfactory for all. To support the plan generation phase, this paper develops a generic multi-agent system, in which agents represent particular land-uses. In the system, agents higher in the hierarchy have priority over agents lower in the hierarchy to claim units of land. This one-direction claim process may result in a plan that is not optimal for every agent. The system, therefore, allows agents to revise their plans in an iterative procedure. A case study illustrates centralized, semi-centralized and decentralized solutions for a plan area based on the outcomes of different strategies used by facility agents (retail, green, schools) and a housing agent. The results show that the proposed system is able to generate rational and realistic plan alternatives for new residential areas.
keywords	Multi-agent system, Planning support system, Plan alternative, Land use planning
series	DDSS
last changed	2006/08/29 12:55

_id	caadria2006_209
id	caadria2006_209
authors	MARCEL BOTHA, LAWRENCE D. SASS
year	2006
title	THE INSTANT HOUSE: Design and digital fabrication of housing for developing environments
doi	https://doi.org/10.52842/conf.caadria.2006.x.q2j
source	CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 209-216
summary	Through a novel method, it is possible to provide mass customized, designed housing to emergency and poverty stricken locations. A definitive need exists for a system that is rapidly deployable and scalable while fostering individuality within the larger rebuilt community. This paper describes the relationship of digital fabrication to materials and design rules by example. The paper ends with different iterations of the Instant house and an explanation of its construction method and execution.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	acadia06_418
id	acadia06_418
authors	Narahara, T., Terzidis, K.
year	2006
title	Multiple-constraint Genetic Algorithm in Housing Design
doi	https://doi.org/10.52842/conf.acadia.2006.418
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 418-425
summary	As architectural projects are becoming increasingly more complex in their formal manifestation as well as in their functional requirements, methods are sought to address these complexities. Genetic algorithms offer an effective solution to the problem allowing multiple constraints to compete as the system evolves towards an optimum configuration that fulfills those constraints. A case study is presented that involves a housing project with multiple environmental, functional, and economic constraints.
series	ACADIA
email
last changed	2022/06/07 07:59

_id	sigradi2006_e011c
id	sigradi2006_e011c
authors	Narahara, Taro and Terzidis, Kostas
year	2006
title	Optimal Distribution of Architecture Programs with Multiple-constraint Genetic Algorithm
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 299-303
summary	A genetic algorithm (GA) is a search technique for optimizing or solving a problem based on evolutionary biology, using terms and processes such as genomes, chromosomes, cross-over, mutation, or selection. The evolution starts from a population of completely random individuals and happens in generations. In each generation, the fitness of the whole population is evaluated, multiple individuals are stochastically selected from the current population (based on their fitness), modified (mutated or recombined) to form a new population, which becomes current in the next iteration of the algorithm. In architecture, GAs are of special interest mainly because of their ability to address a problem offering a multiplicity of possible solutions. Contrary to other algorithms where the objective is to accommodate a manually conceived diagram, GAs are emergent procedures that evolve over time through multiple attempt cycles (i.e. generations) and therefore offer a bottom-up approach to design. In addition, by using the computational power of computers they can resolve complex interactions between multiple factors and under multiple constraints offering solutions that occasionally surprise the designer. One of the main problems in architecture today is the quantity of the information and the level of complexity involved in most building projects. As globalization and economic development has started to arise at unprecedented levels, the need for large urban developments have become commonplace. Housing projects for a few hundreds to thousands of people have started to emerge over large urban areas. In such cases, the old paradigm for housing design was the development of high rises that served as stacking devices for multiple family housing units. Such a direction was unfortunately the only way to address excessive complexity using manual design skills mainly because it was simple to conceive but also simple to construct. The unfortunate nature of this approach lies rather in the uniformity, similarity, and invariability that these projects express in comparison to individuality, discreteness, and identity that human beings and families manifest. One of the main areas of complexity that could benefit architecture is in housing projects. In these projects there is a typology of residential units that need to be combined in various schemes that will fulfill multiple functional, environmental, and economic constraints. In this paper, the design of a 200-unit residential complex on a corner of two streets in an urban context was investigated as a case study. Recent advancement in tectonics and structural engineering enables the realization of buildings in mega scales and starts to introduce another layer of complexity into the building programs. Conventional design methods relying on the preconceived knowledge based approaches are no longer reliable. Beyond the certain quantitative factors and the complexity of the problems, search occasionally enters into the unpredictable domain of the human perception. Computational approaches to design allows us to go through thousands of iterations in a second and find the solution sets beyond the reach of designers’ intuitive search spaces. Genetic Algorithm can be a potential derivative for finding optimum design solution from indeterminate search spaces constrained by multi dimensional factors.
keywords	Genetic Algorithm; Housing Design; Multiple-constraint
series	SIGRADI
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last changed	2016/03/10 09:55

_id	ddss2006-pb-185
id	DDSS2006-PB-185
authors	O.T.J. Devisch, H.J.P. Timmermans, T.A. Arentze, and A.W.J. Borgers
year	2006
title	Modelling Residential Search and Location Choice - Framework and Numerical Experiments
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. 185-200
summary	People only move a limited number of times during their lifetime. Factors such as high financial costs, local social networks, emotional bounds, etc. make that people typically postpone this decision as long as possible, up to the point where the benefit of alternative housing outperforms all these factors. Then things generally have to go fast. This combination of time-pressure, high costs and lack in experience turn residential search and location choice into a complex decision process. This paper presents a model developed to grasp some of this complexity. Households are approached as autonomous decision-makers continuously evaluating whether to search for information, to visit houses for inspection, to start negotiating with the owner of a house for sale or to do nothing and stay in the current house. Households make these evaluations on the basis of beliefs regarding their environment and update these beliefs each time they collect new information on this environment.
keywords	Microsimulation, Spatial simulation models, Strategic decision-making, State dependent behaviour, Belief-updating
series	DDSS
last changed	2006/08/29 12:55

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