A Computational Approach to Fractal Analysis of a Cityscape's Skyline

Chalup, Stephan K.; Henderson, Naomi; Ostwald, Michael J.; Wiklendt, Lukasz

doi:10.3763/asre.2009.0015

Cited by 10 publications

(13 citation statements)

References 24 publications

(21 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While subjective methodologies include surveys and experimental research on psychological and behavioral sciences, objective methodologies deal with the numerical attributes of the urban form using several computation techniques based on fractal geometry, space syntax, entropy and fuzzy logic, etc. ( 2006; Chalup, Henderson, Michael, & Wiklendt, 2009;Cooper & Oskrochi, 2008;Crompton & Brown, 2008;Heath et al, 2000;Mak, Yip, & Lai, 2005;Ostwald, Vaughan, & Tucker, 2008). These computer based mathematical models allow measurability and hence carry important potentials for the evaluation of urban esthetics.…”

Section: An Analytical Approach Based On Spatial Informaticsmentioning

confidence: 96%

Tailoring a geomodel for analyzing an urban skyline

Güney

Girginkaya

Çaǧdaş

et al. 2012

Landscape and Urban Planning

View full text Add to dashboard Cite

Section: An Analytical Approach Based On Spatial Informaticsmentioning

confidence: 96%

Tailoring a geomodel for analyzing an urban skyline

Güney

Girginkaya

Çaǧdaş

et al. 2012

Landscape and Urban Planning

View full text Add to dashboard Cite

“…Creating a 360-degree skyline graph to identify height thresholds and height relationships was examined for the first time in this field of research. By developing skyline graphs, it is possible to calculate the fractal dimension of city skylines from different locations with more accuracy, similar to how models by Chalup et al (2009 work but with differences. Therefore, the proposed method offered a new method to analyse building heights as compared to previous literature.…”

Section: Critique Of Bulk and Height Analysismentioning

confidence: 99%

“…Previous studies by Stamps (2002), Chalup et al (2009) and Guney (2012) quantified another aspect of the skyline, including complexity, which was not useful for resolving development conflicts. Skyline graph and visibility ratios were new concepts and methods used to analyse urban skylines.…”

Section: New Knowledge In Visual Impacts Of High Rise Developmentsmentioning

confidence: 99%

“…Quantitative assessment of the skyline for different purposes has previously been investigated by several types of research by Stamps (2002), Chalup et al (2009) andGuney (2012).…”

Section: Critique Of Bulk and Height Analysismentioning

confidence: 99%

“…Skyline is defined as the outline of a building or structure seen against the sky (Chalup, Henderson, Ostwald, & Wiklendt, 2009). Figure 6-4 shows a sample visual bowl modelling from a sample viewpoint based on Digital Surface Model and skyline.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Measuring visual attributes for assessing visual conflicts in urban environments

Tara¹

View full text Add to dashboard Cite

The visual relationships between a proposed development and the existing urban setting have become increasingly controversial in the past two decades. Protecting and enhancing visual attributes of the current urban environment is regulated by a range of performance-based policies and regulations. However, every year many development conflicts occur between developers, local councils and residents resulting in costly delays in the development process. Visual amenity and character are two of the most contentious issues in these conflicts.Currently, conflict resolution based on these policies relies on experts' interpretation of what appears to be visually significant. Although visual amenity experts aim to provide an impartial and objective assessment of visual effects of proposed developments, their evaluations are sometimes mixed with personal judgments and lack enough centrality and reliability. The problem is compounded by the fact that there are no consistent approaches within and between localities and experts as to what is considered visually significant. The uncertainties and inefficiencies created by performance-based planning policies, to regulate the protection of urban visual quality, highlights the importance of developing reliable, measurable and repeatable approaches to analyse visual environments and to describe the urban character.Based on a postpositivist approach, a range of research methods using exploratory and descriptive approaches was used to answer the stated research questions. Therefore, the research design is split into three stages. The first stage involved reviewing the planning court cases in Brisbane from 2000 to 2012 to identify the overall different types of conflicts within the city. These conflicts were analysed spatially to determine their distribution and to look for any significant spatial patterns. Based on this review, four case studies were selected, and three measurable methods were developed to provide a higher level of quantitative assessment of visual properties of the urban character. In the last stage, the technical methods were evaluated by a panel of three visual amenity expert witnesses to investigate the effectiveness, usefulness and potential of these methods to be applied in expert assessments and court case resolutions.This research focuses on urban visual amenity conflicts in the city of Brisbane, Queensland, Australia and identifies the gaps and recurring issues inherent in expert assessments and judgments. Based on this knowledge, quantitative methods to assess visual amenity and character, with greater objectivity and reliability than existing methods, have been developed. The outcome of this research contributes to the field of visual assessment and character studies in landscape planning and assists decision makers and Environmental and Planning Courts to determine development conflicts with more objectivity and reliability.

show abstract

Parametrically Generating New Instances of Traditional Chinese Private Gardens that Replicate Selected Socio-Spatial and Aesthetic Properties

Ostwald

2015

Nexus Netw J

Self Cite

View full text Add to dashboard Cite

This paper describes the use of a parametric system for generating garden plans that replicate selected socio-spatial characteristics and aesthetic properties of traditional Chinese private gardens (TCPGs). To achieve this, the spatial characteristics of three historic TCPGs are first mathematically derived using connectivity analysis, a variation of a space syntax technique. The data developed through this process is then used to shape the rules of a parametric system to generate new garden plans with similar spatial connectivity values and structures. While these new plans capture some of the socio-spatial features of the TCPG, the other important characteristic of these gardens is a particular level of visual complexity. Using fractal analysis, the characteristic visual complexity of the newly generated garden plans is then compared with the historic cases, to assess the success of the system in aesthetic terms. Through this three-stage process (syntactical derivation, parametric generation and fractal analysis) the paper demonstrates a method for capturing selected spatial and aesthetic properties in a parametric system and also provides new tools for landscape design in the context of specific historical sites and approaches.

show abstract

A Computational Approach to Fractal Analysis of a Cityscape's Skyline

Cited by 10 publications

References 24 publications

Tailoring a geomodel for analyzing an urban skyline

Tailoring a geomodel for analyzing an urban skyline

Measuring visual attributes for assessing visual conflicts in urban environments

Parametrically Generating New Instances of Traditional Chinese Private Gardens that Replicate Selected Socio-Spatial and Aesthetic Properties

Contact Info

Product

Resources

About