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

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Hits 1 to 20 of 84

_id 8b29
id 8b29
authors Chaszar, A. (ed.), Burry, M., Eliassen, T., Garofalo, D., Glymph, J., Hesselgren, L., Jonkhans, N., Kienzl, N., Kloft, H., Maher, A., Mueller, V., Palmer, A., Reuss, S., Schuler, M., Schwitter, C., Sharples, C., Sharples, W., Shea, K., Stoller, P., Takemori, T., Woodger, N.
year 2006
title Blurring the Lines: Computer-Aided-Design and -Manufacturing in Architecture
source Wiley-Academy, London 224 pp. Architecture in Practice series
summary The first few years of the 21st century have seen a revolution in the ways that we think about designing and making buildings. In no other area is this more apparent than in the interface of computer-aided design (CAD) and computer-aided manufacture (CAM). The potential blurring or assimilation of these two systems holds the still elusive but golden promise of a direct, smooth transference of design data into large-scale production facilities in which components are directly cut, modelled and moulded. How far off are we from seeing the widespread adoption of this technology? What is the potential for CAD/CAM beyond tailor-made forms? In the future, what is the possibility of complex, large-scale forms being run out in mass-customised buildings?
keywords associative geometry, auralization, CNC, collaborative design, generative design, parametric design, simulation, visualization
series book
type normal paper
email
last changed 2006/06/12 23:35

_id ddss2006-pb-101
id DDSS2006-PB-101
authors Aloys W.J. Borgers, I.M.E. Smeets, A.D.A.M. Kemperman, and H.J.P. Timmermans
year 2006
title Simulation of Micro Pedestrian Behaviour in Shopping Streets
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. 101-116
summary Over the years, scholars have developed various models of pedestrian movement. These models can be used to assess the effects of detailed design decisions or to predict pedestrian behaviour under conditions of crowding. To date, not much attention has been paid to pedestrians' shopping behaviour at the micro level. Therefore, the main purpose of this project is to test a model that aims at simulating micro pedestrian behaviour in shopping streets, including entering shops. The model assumes a detailed network of links to represent the structure of street segments and entrances to the shops. The basic principle underlying the model is that a pedestrian moves from one link in the network to another, adjacent link. In fact, a pedestrian enters a segment at one side, heading for the other side of the segment. However, a pedestrian might enter the segment by leaving a shop as well. Then, the pedestrian might be heading for either side of the segment. While transferring from the current link to the next link, the pedestrian will be attracted by the shops along both sides of the street. The study area is Antwerp's main shopping street. During a one-week workshop in July 2004, students observed pedestrian movement in this shopping street. An inventory of some physical characteristics of the shopping street was made and pedestrians were tracked through two separate segments of the shopping street. In total, 334 pedestrians were tracked. A conventional multinomial logit model is used to simulate pedestrians' micro behaviour. The process of consecutively selecting links continues until the pedestrian has reached one of the terminal links or a shop. The model performs very well. Simulated routes were used to assess the validity of the model. Observed and simulated link loading correspond fairly well, however, the model seems to slightly mispredict the attraction of a number of shops.
keywords Micro pedestrian behaviour, Shopping street, Simulation
series DDSS
last changed 2006/08/29 12:55

_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-pb-289
id DDSS2006-PB-289
authors I-Chieh Huang and Teng-Wen Chang
year 2006
title A Study of Using Oversized Display in Supporting Design Communication - Focus on interior design problems
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. 289-301
summary This paper focuses on using oversized display for supporting design communication process between designers and clients. The interactive behaviors are analyzed and testified with a prototype developed in this research. Based on interviews with designers and clients, focus of the communication process in this research is onto developing an immersive environment for exchanging and negotiating the design artifacts. Several immersive virtual environment as well as visualization method (display) is reviewed. Furthermore, three over-sized display projects (ShadowLight, CaveUT and Blue-c) with immersive perception at full-scale or near full-scale design artifacts are studied as the inspiration of this research. Designers identify what kinds of influence they had on the design of client's interior space and to what extent they are aware that they can design and influence their perception. An over-sized display environment with direct manipulation interface is developed for evaluation platform.
keywords Virtual environments, Collaborative design
series DDSS
last changed 2006/08/29 12:55

_id ddss2006-hb-85
id DDSS2006-HB-85
authors J.A.M. Borsboom-van Beurden, R.J.A. van Lammeren, T. Hoogerwerf, and A.A. Bouwman
year 2006
title Linking Land Use Modelling and 3D Visualisation - A mission impossible?
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. 85-101
summary Additional to the traditional land use maps 3D visualisation could provide valuable information for applications in the field of spatial planning, related to ecological and agricultural policy issues. Maps of future land use do not always reveal the appearance of the physical environment (the perceived landscape) as a result of land use changes. This means that 3D visualisations might shed light on other aspects of changed land use, such as expected differences in height or densities of new volume objects, or the compatibility of these changes with particular characteristics of the landscape or urban built environment. The Land Use Scanner model was applied for the Netherlands Environmental Assessment Agency's 'Sustainability Outlook' to explore land use changes, followed by GIS analyses to asses both the development of nature areas and the degree of urbanisation within protected national landscapes. Since it was felt that 3D visualisation could complement the resulting land use maps, the land use model output was coupled to 3D visualisation software in two different ways: 1) through Studio Max software in combination with iconic representation of the concerned land use types and 2) through 3D components of GIS software. However, the use of these techniques on a national scale level for the generation of semi-realistic 3D animations raised a number of conceptual and technical problems. These could be partly ascribed to the particular format and of the Land Use Scanner output. This paper discusses the methods and techniques which have been used to couple the output of the land use model to 3D software, the results of both approaches, and possible solutions for these problems.
keywords Land use models, 3D visualisation, Policy-making
series DDSS
last changed 2006/08/29 12:55

_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 caadria2006_443
id caadria2006_443
authors M.W. KNIGHT, A.G.P. BROWN, J.S. SMITH
year 2006
title DIGITAL TERRAIN MESHES FROM GPS IN URBAN AREAS: A Practical Aid to City Modelling
doi https://doi.org/10.52842/conf.caadria.2006.x.a6t
source CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 443-451
summary The work presented here brings together two core interests that have been developed by the first two authors over recent years. The first is the development of city models for use in a range of applications where different data sets and different levels of detail may be appropriate. The second is the development of low cost systems that can deliver useful tools to help address Computer Aided Architectural Design problems. In addition the involvement of a colleague in Electrical Engineering and Electronics reflects a long standing belief in the benefits of cross-disciplinary and interdisciplinary work between architecture and parallel research fields. The product of the collaboration is a system that can aid in the production of terrain models that, in our case, are particularly important as the base for a city model (Brown et.al, 2005).
series CAADRIA
email
last changed 2022/06/07 07:50

_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 ddss2006-hb-35
id DDSS2006-HB-35
authors Y. Gohnai, A. Ohgai, S. Ikaruga, T. Kato, K. Hitaka, M. Murakami, and K. Watanabe
year 2006
title Development of a Support System for Community-Based Disaster Mitigation Planning Integrated with a Fire Spread Simulation Model Using CA - The results of an experimentation for verification of its usefulness
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. 35-51
summary This research carried out an experiment to verify the usefulness of a WebGIS-based system that we have been developing (A support system for community-based disaster mitigation planning integrated with a fire spread simulation model using CA) BEFORE, DURING and AFTER Workshops. Based on the data collected from the experiment, the usefulness and advantages of the system were verified from various angles. As a result, it was found that even though there are still some issues to be solved, the system is useful and effective as a support tool and also in enhancing awareness before and after Workshops.
keywords Community-based planning for disaster mitigation, Planning support system, Fire spread simulation, Cellular automata, WebGIS
series DDSS
last changed 2006/08/29 12:55

_id ddss2006-pb-35
id DDSS2006-PB-35
authors M.C.G. te Brömmelstroet
year 2006
title Properly Equip Planners, Instead of Just Manning Equipment - A first step in a user-oriented PSS development approach as support for the integration of land use and transport planning
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. 35-50
summary There is a growing need for planning support in planning practice, especially in land use and transport integration. Recent studies have shown that instruments that provide such are seldom implemented. Building on recommendations of those studies, this paper explores how to develop a planning support system (PSS) for this specific field of planning and shows some preliminary results of the first steps towards such a PSS. An qualitative assessment on the strengths and weaknesses of two recently developed instruments that share this goal; the VPR and the SDS+STE. Due to time constraints, the focus is on the background and framework of the study.
keywords Land use and transport, PSS, computer-aided planning, participatory design
series DDSS
last changed 2006/08/29 12:55

_id 047b
id 047b
authors Woodbury, R, Williamson, S, Beesley, P
year 2006
title Parametric Modeling as a Design Representation in Architecture: a process account
source Third CDEN/RCCI International Conference on Education, Innovation, and Practice in Engineering Design, Toronto, ON, Canada, 24-26 July 2006. Canadian Design Engineering Network. Published on CD.
summary Disciplines outside of engineering, for instance, architecture, are adopting parametric modelling as a design representation. This paper reports on three aspects of the adoption process, which is largely being conducted through multi-day workshops outside of formal university course settings. Fist, the structure and process of such workshops may be a model for interdisciplinary learning and university-industry liaison. Second, students learning parametric modelling must master skill different from that required for non-parametric representation. Third, the parametric modelling strategies being developed in architecture may have both similarities and differences to those used in engineering.
keywords Parametric Modelling Design Representation Generative Components
series other
type normal paper
email
more http://www.cden2006.utoronto.ca/data/10092.pdf
last changed 2006/10/29 14:52

_id ddss2006-hb-467
id DDSS2006-HB-467
authors A. Fatah gen. Schieck, A. Penn, V. Kostakos, E. O'Neill, T. Kindberg, D. Stanton Fraser, and T. Jones
year 2006
title Design Tools for Pervasive Computing in Urban Environments
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. 467-486
summary In this paper we report on ongoing research in which the implications of urban scale pervasive computing (always and everywhere present) are investigated for urban life and urban design in the heritage environment of the city of Bath. We explore a theoretical framework for understanding and designing pervasive systems as an integral part of the urban landscape. We develop a framework based on Hillier's Space Syntax theories and Kostakos' PSP framework which encompasses the analysis of space and spatial patterns, alongside the consideration of personal, social and public interaction spaces to capture the complex relationship between pervasive systems, urban space in general and the impact of the deployment of pervasive systems on people's relationships to heritage and to each other. We describe these methodological issues in detail before giving examples from early studies of the types of result we are beginning to find.
keywords Urban space, Pervasive systems, Urban computing, Space Syntax, Interaction space
series DDSS
last changed 2006/08/29 12:55

_id sigradi2006_c160e
id sigradi2006_c160e
authors Bessone, Miriam and Pérez Miró, Ricardo
year 2006
title Experiencias interactivas para la transducción entre Música y Arquitectura a través de la forma [Interactive experience for the transcription amid music and architectural shape]
source SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 420-424
summary The digital technology and the integration of knowledge between musicians and architects it’s presented as a unique platform to explore and give a new meaning to the bonds between Music and Architecture. The presentation describes the experience and the results of creative process that link a group of music and architecture students and teachers for a hypermedia composition. The processes are orientated to the simultaneous construction of products from two approaches: from music to the form (plastic or visual), and vice versa. The exploration begins from musical assignments and it’s limited to two types of situations and creative bonds with digital technology: • Independent actions of the subject-musician and subject-architect. • Conjoint actions of both subjects. // The conclusions allow to evaluate the degree of measurability of the process taken care and possible derivations of the particular interpretations of them in each situation.
series SIGRADI
type normal paper
email
last changed 2016/03/10 09:47

_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 ddss2006-hb-309
id DDSS2006-HB-309
authors John S. Gero and Udo Kannengiesser
year 2006
title A Framework for Situated Design Optimization
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. 309-324
summary This paper presents a framework for situated design optimization that expands the traditional view of design optimization. It is based on the notion of interaction providing the potential for modifications of various aspects of the optimization process: problem formulation, the optimization tool, the designer and ultimately the result. In contrast to other approaches, these modifications can drive further interactions within the same optimization process. We use parts of the situated function-behaviour-structure (FBS) framework as an ontological basis to describe the effects of intertwined interactions and modifications on the state space of ongoing optimization processes.
keywords Design optimization, Situatedness
series DDSS
last changed 2006/08/29 12:55

_id ddss2006-pb-85
id DDSS2006-PB-85
authors João Pinelo
year 2006
title Land Use Location and Urban Topology - Exploring this relationships' relevance and an approach methodology
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. 85-100
summary This work's first aim is to analyse the relationship between urban axes' topological properties and urban land use location. The second aim is to do it in a straightforward reliable way. A bottom-top methodology is proposed and explored. It is commonly accepted that land use searches within the city for a convenient location, concerning their business. Location is influenced by several factors. These factors and their relative importance differ among land uses. Accessibility is usually recognised as an important factor. This work analyses some land uses in the city of Lisbon in relation to the location parameter: topological accessibility. The exploratory work made clearer it worth studying topology's role in the location of urban land use. Although short on land use types, its wide spectrum in relation to service level confirms both urban topology as an important location parameter and the proposed method as promising.
keywords Land use location, Space Syntax, Bottom-top methodology
series DDSS
last changed 2006/08/29 12:55

_id ddss2006-hb-235
id DDSS2006-HB-235
authors K. Zhou, A. Kondo, A. Cartagena Gordillo, and K. Watanabe
year 2006
title A Comparison Study of the Allocation Problem of Undesirable Facilities Based on Residential Awareness - A case study on waste disposal facility in ChengDu City, Sichuan China
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. 235-250
summary The purpose of this paper is to propose a model, which can be used for allocation planning of undesirable facilities by analysing citizen's awareness. As the endurance distance is regarded as a variable, the relation between the distance from the residential location to a waste facility and residential endurance rate is a problem of probability and statistics. Three kinds of stochastic methods are compared in this study.
keywords Facility location, Undesirable facilities, Stochastic method, ChengDu City
series DDSS
last changed 2006/08/29 12:55

_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-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 ddss2006-hb-221
id DDSS2006-HB-221
authors Selma Celikyay
year 2006
title Research on New Residential Areas Using GIS - A 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. 221-233
summary Planning is a decision-making process which is about 'the future'. In each scale of planning process, spatial rules of the social life are formed. In this process, firstly series of spatial analyses should be practised. Throughout the world, spatial planning strategies which focus on the sustainable development adapt an ecological approach and both the regional and urban planning processes are based upon ecological bases. Under the guidance of this notion, also in Turkey, spatial planning strategies should be urgently reviewed and any level of planning process should be directed to ecological bases. Furthermore, in all these steps, natural resources and ecological characteristics should be taken into consideration. In the city of Bartin, where Bartin River flows through, a case study has been carried out regarding the above mentioned planning strategies. The case study has three stages. These stages also frame the data, analysis and evaluation stages. In the case study, a combination of McHarg's ecological evaluation method and Kiemstedt's usage value analysis in planning has been employed. With the help of ecological analyses, in the rural areas that have not been settled yet, the potential of the natural resources has been examined for the new residential areas. As a result, in the city of Bartin, the potential residential areas have been defined on the unsettled regions. What is more, concerning the subject, a map has been formed on the scale of 1/25 000. As a result of the case study, it has been concluded that in Bartin city because of the physical planning which ignores the potential of the natural resources, some of the existing residential areas have been chosen improperly.
keywords Decision support systems, Ecological analysis, Geographical information systems, Residential areas, Spatial analysis
series DDSS
last changed 2006/08/29 12:55

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