Spatial decision support systems for the management of informal settlements

Mason, Scott; Baltsavias, Emmanuel P.; Bishop, Ian D.

doi:10.1016/s0198-9715(97)10002-3

Cited by 23 publications

(14 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This work was further extended by Li et al [73] to include color similarity cues to connect edges of dwellings. Although improved results were reported, as in Mason et al [72], they assumed a rectilinear model for rooftops, which may not be applicable to other slum areas where roofing extent does not follow such a pattern.…”

Section: Building Feature Extractionmentioning

confidence: 97%

See 1 more Smart Citation

A Critical Review of High and Very High-Resolution Remote Sensing Approaches for Detecting and Mapping Slums: Trends, Challenges and Emerging Opportunities

et al. 2018

View full text Add to dashboard Cite

Slums are a global urban challenge, with less developed countries being particularly impacted. To adequately detect and map them, data is needed on their location, spatial extent and evolution. High-and very high-resolution remote sensing imagery has emerged as an important source of data in this regard. The purpose of this paper is to critically review studies that have used such data to detect and map slums. Our analysis shows that while such studies have been increasing over time, they tend to be concentrated to a few geographical areas and often focus on the use of a single approach (e.g., image texture and object-based image analysis), thus limiting generalizability to understand slums, their population, and evolution within the global context. We argue that to develop a more comprehensive framework that can be used to detect and map slums, other emerging sourcing of geospatial data should be considered (e.g., volunteer geographic information) in conjunction with growing trends and advancements in technology (e.g., geosensor networks). Through such data integration and analysis we can then create a benchmark for determining the most suitable methods for mapping slums in a given locality, thus fostering the creation of new approaches to address this challenge.

show abstract

Section: Building Feature Extractionmentioning

confidence: 97%

“…Such an approach was used by Mason et al [72] to extract slum dwellings in the Marconi Beam settlement in Cape Town, South Africa. An nDSM was first created using stereo images acquired from very high-resolution aerial imagery.…”

Section: Building Feature Extractionmentioning

confidence: 99%

A Critical Review of High and Very High-Resolution Remote Sensing Approaches for Detecting and Mapping Slums: Trends, Challenges and Emerging Opportunities

et al. 2018

View full text Add to dashboard Cite

show abstract

“…VRML has been used for urban design on a different scale by Jiang et al (1997) who discuss its potential for design and planning by combining abstract features and realism. It has also been used to model urban development (Whyte et al, 1998;and Martin & Higgs, 1997) and for decision support in modelling urban living quality (Mason et al, 1997). All these studies work on a finer scale, showing the shape of individual residences, whereas the minimal unit in our application (the cell) may contain many dwellings, even though the mathematics operates at the individual allotment or dwelling level.…”

Section: Discussionmentioning

confidence: 99%

“…This provides for flexible viewing of thematic 3D displays by way of coloured geometric objects and for displaying temporal aspects through animation. VRML has been used in a number of urban planning applications to display 3D images of urban settlements (Mason et al, 1997;Martin & Higgs, 1997;and Whyte et al, 1998).…”

Section: Contemporary Visualisation Techniquesmentioning

confidence: 99%

Forecasting the pattern of urban growth with PUP: a web-based model interfaced with GIS and 3D animation

Bell

Dean

Blake

2000

Computers, Environment and Urban Systems

View full text Add to dashboard Cite

show abstract

“…They are characterized by rapid and unstructured expansion, poorly constructed buildings, and in some cases they are on disputed land (Mason et al, 1997;Huchzermeyer and Karam, 2006). Informal settlements commonly originate on unoccupied land along the urban edge or land that might be difficult to develop, such as on steep slopes or areas prone to flooding.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Use of 3d Geovisualizations for Urban Design in Informal Settlement Upgrading in South Africa

Rautenbach¹,

Coetzee²,

Çöltekin³

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:Informal settlements are a common occurrence in South Africa, and to improve in-situ circumstances of communities living in informal settlements, upgrades and urban design processes are necessary. Spatial data and maps are essential throughout these processes to understand the current environment, plan new developments, and communicate the planned developments. All stakeholders need to understand maps to actively participate in the process. However, previous research demonstrated that map literacy was relatively low for many planning professionals in South Africa, which might hinder effective planning. Because 3D visualizations resemble the real environment more than traditional maps, many researchers posited that they would be easier to interpret. Thus, our goal is to investigate the effectiveness of 3D geovisualizations for urban design in informal settlement upgrading in South Africa. We consider all involved processes: 3D modelling, visualization design, and cognitive processes during map reading. We found that procedural modelling is a feasible alternative to time-consuming manual modelling, and can produce high quality models. When investigating the visualization design, the visual characteristics of 3D models and relevance of a subset of visual variables for urban design activities of informal settlement upgrades were qualitatively assessed. The results of three qualitative user experiments contributed to understanding the impact of various levels of complexity in 3D city models and map literacy of future geoinformatics and planning professionals when using 2D maps and 3D models. The research results can assist planners in designing suitable 3D models that can be used throughout all phases of the process.

show abstract

Spatial decision support systems for the management of informal settlements

Cited by 23 publications

References 4 publications

A Critical Review of High and Very High-Resolution Remote Sensing Approaches for Detecting and Mapping Slums: Trends, Challenges and Emerging Opportunities

A Critical Review of High and Very High-Resolution Remote Sensing Approaches for Detecting and Mapping Slums: Trends, Challenges and Emerging Opportunities

Forecasting the pattern of urban growth with PUP: a web-based model interfaced with GIS and 3D animation

Investigating the Use of 3d Geovisualizations for Urban Design in Informal Settlement Upgrading in South Africa

Contact Info

Product

Resources

About