Interactive design of urban spaces using geometrical and behavioral modeling

Vanegas, Carlos A.; Aliaga, Daniel G.; Beneš, Bedřich; Waddell, Paul

doi:10.1145/1661412.1618457

Cited by 38 publications

(63 citation statements)

References 24 publications

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“…Our city m od eling com ponent extend s that of Vanegas et al 2009b to the specific requirem ents of m eteorological sim ulation. While Vanegas et al 2009b use the generated output to increase the d etail/ precision of pred ictive urban sim ulation, w e use it for m eteorological sim ulation.…”

Section: D City Modelsupporting

confidence: 54%

“…While Vanegas et al 2009b use the generated output to increase the d etail/ precision of pred ictive urban sim ulation, w e use it for m eteorological sim ulation. We focus on i) scenario ed iting (as d escribed in Section 3) and on  m od eling from GIS d ata input -w e custom ized the system so that an initial 3D m od el can be generated based only on the d ata sets that are norm ally available for w eather/ clim ate sim ulation (i.e., LULC, pop ulation); nevertheless, ad d itional layers can be provided to the system to im prove the resulting m od el, either from d atabases or throu gh user ed iting; and  d ata generation for m eteorological sim ulation -w e autom atically com pute ind icator values, in stand ard form ats, from the generated 3D geom etry to be given to the w eather sim ulation system (Sections 4. d em onstrate the ability to recreate p lau sible ap p roxim ations of existing locations from a p reviou sly sp ecified set of behavioral and geom etrical variables.…”

Section: D City Modelmentioning

confidence: 99%

“…Ou r u rban m od eling system is an extension of the infrastructu re d escribed in Vanegas et al 2009b (available upon request from authors). All rendering is d one on the PC using an N Vid ia Quad ro FX 1700 graphics card .…”

Section: Implementation Detailsmentioning

confidence: 99%

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Visualization-Based Decision Tool for Urban Meteorological Modeling

Aliaga

Vanegas

Lei

et al. 2013

Environ Plann B Plann Des

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Abstract-We present a visualization-based decision tool that enables exploring the link between urban land use and urban weather, in particular predicting and visualizing changes in urban temperature, precipitation, and humidity. Our work combines recent work from urban planning, weather and climate studies, and visualization and computer graphics. Our approach uses an interactive tool to quickly and automatically produce plausible detailed 3D city models by means of a hybrid computational simulation of urban behavior and procedural urban geometry. From the city model, urban morphology parameters are efficiently computed and used by our custom meteorological simulator which considers the influence of the urban landscape. The result is a compelling visualization ability for understanding the complex feedback between urban land use and the regional meteorology of current cities and of potential future cities with desired greening patterns. Our work includes a case study example spanning a 1600 km 2 area.

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Section: D City Modelsupporting

confidence: 54%

Section: D City Modelmentioning

confidence: 99%

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Visualization-Based Decision Tool for Urban Meteorological Modeling

Aliaga

Vanegas

Lei

et al. 2013

Environ Plann B Plann Des

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“…Weber et al [29] present an interactive simulation system for cities growing over time, by expanding streets in the city's road network. A dynamic system that connects geometrical with behavioral modeling is proposed by Vanegas et al [30]. Here, users paint behavioral variables like employment density, which automatically leads to changes in the population distribution and, thereby, the city geometry.…”

Section: Extending Traditional Procedural Methodsmentioning

confidence: 99%

A declarative approach to procedural modeling of virtual worlds

Smelik

Tutenel

Kraker

et al. 2011

Computers & Graphics

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With the ever increasing costs of manual content creation for virtual worlds, the potential of creating it automatically becomes too attractive to ignore. However, for most designers, traditional procedural content generation methods are complex and unintuitive to use, hard to control, and generated results are not easily integrated into a complete and consistent virtual world.We introduce a novel declarative modeling approach that enables designers to concentrate on stating what they want to create instead of on describing how they should model it. It aims at reducing the complexity of virtual world modeling by combining the strengths of semantics-based modeling with manual and procedural approaches. This article describes two of its main contributions to procedural modeling of virtual worlds: interactive procedural sketching and virtual world consistency maintenance. We discuss how these techniques, integrated in our modeling framework SketchaWorld, build up to enable designers to create a complete 3D virtual world in minutes. Procedural sketching provides a fast and more intuitive way to model virtual worlds, by letting designers interactively sketch their virtual world using high-level terrain features, which are then procedurally expanded using a variety of integrated procedural methods. Consistency maintenance guarantees that the semantics of all terrain features is preserved throughout the modeling process. In particular, it automatically solves conflicts possibly emerging from interactions between terrain features.We believe that these contributions together represent a significant step towards providing more user control and flexibility in procedural modeling of virtual worlds. It can therefore be expected that by further reducing its complexity, virtual world modeling will become accessible to an increasingly broad group of users.

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“…• Shape grammars are applied to simulate urban growth (Vanegas et al 2009a;Weber et al 2009), urban redesign (Bramley and Power 2009;Yerra and Levinson 2005), changes on the demand side (Dutton 2000), or even at new technologies (Geddes 1939). Disadvantages of shape grammars could be found as well and are stated below:…”

Section: Advantages and Disadvantagesmentioning

confidence: 99%

Shape grammars overview and assessment for transport and urban design: Review, terminology, assessment, and application

Vitins

Axhausen²

2016

JTLU

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Shape grammars for urban design have attracted much interest in research and practice. Transport and urban planners increasingly deploy shape grammars, especially in simulations and procedural models. Shape grammars have multiple advantages due to their interdisciplinary and straightforward approach and low computational requirements. In addition, a rulebased design method and underlying fundamental research knowledge can potentially support future planning and design guidelines for handbooks and norms. However, little is known about the effectiveness of shape grammars in transport networks and urban environments. e proposed methodology aims at a future development of a robust and effective language for sustainable urban development. e theory of different fields is consolidated for a general grammar definition. Grammars require specified and corresponding objectives and application specifications for enhanced implementation. e proposed methodology for grammar rule assessment is based on elasticities to gain more insights in the effect of the rules. Elasticities allow comprehensive comparisons and verification between grammar rules. e paper reviews and highlights the key achievements and applications of shape grammars in cognate fields of science. Terminology sheds light on the definitions of most relevant terms including a general definition for grammar rules embedded in the language context. e paper differentiates methodological approaches in grammar design assessment and emphasizes a standardized approach for shape grammar definitions. e paper concludes with a detailed example for grammar rule assessment and potential future research.

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Interactive design of urban spaces using geometrical and behavioral modeling

Cited by 38 publications

References 24 publications

Visualization-Based Decision Tool for Urban Meteorological Modeling

Visualization-Based Decision Tool for Urban Meteorological Modeling

A declarative approach to procedural modeling of virtual worlds

Shape grammars overview and assessment for transport and urban design: Review, terminology, assessment, and application

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