Urban land use pattern identification using variogram on image

Barros, Daniele Lima; Giannotti, Mariana Abrantes; Larocca, Ana Paula Camargo; Quintanilha, José Alberto

doi:10.1680/jurdp.15.00006

Cited by 2 publications

(3 citation statements)

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“…In other words, it seems that more qualitative research is needed to assess on the field howland is really used and which combination of activities are present. For sure, satellite imagery and remote sensing are advancing fast and can be important tools to analyze and model urban growth and land cover [31][32][33], but they (still) have limited value for urban policy making that needs detailed information regarding land use and combinations of activities and uses.…”

Section: Efficient Land Use and Consumption Spatial Productivity Andmentioning

confidence: 99%

Assessing Discrepancies between Official Economic Statistics and Land Use through a Field Inventory System

et al. 2018

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To limit additional (net) land take for economic activities, the reality of space use needs to be properly understood. This was assessed by comparing the spatial patterns obtained from a field inventory with those from existing data for five case areas in Flanders (Belgium). Each case area is a transect from a high-density urban area to a suburban neighborhood or even a semi-rural zone. The statistics on these areas, based on official data, mostly derived from tax returns, social security contributions, and on commercial retail data, were checked with field observations. The location of economic activities and the patterns of space use vary in different settlement environments, resulting in the identification of typical characteristics for eight location environment types. While in, for example, core shopping centers a strong convergence can be noticed between existing statistics and the field inventory (71% of companies and 93% of parcels are detected on the field), in residential areas (21% of companies and 17% of parcels are detected on the field) the convergence is very limited. In other words, in some environments, (the combination of) data and statistics give a good understanding of the space use while, in other environments, gaps with realities in the field are obvious. Therefore, a field inventory system can enrich the picture and present another reality to complement both existing statistics and other land-use data methods such as remote sensing and web data extraction.

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Section: Efficient Land Use and Consumption Spatial Productivity Andmentioning

confidence: 99%

Assessing Discrepancies between Official Economic Statistics and Land Use through a Field Inventory System

et al. 2018

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“…In the end, porosity was seen as an opportunity for improving resilience in the built environment. Barros et al (2016) addressed another form of assessment of the urban environment through the analysis of high spatial resolution images. The authors aimed to identify residential patterns of three urban land use classes through the analysis of the parameters, graphics and results of variograms.…”

mentioning

confidence: 99%

“…The results of the study suggest certain levels of moisture could be applied as a thermal comfort strategy for the city. Baptista Neto and Barbosa (2016) investigated the concept of urban vitality through an analysis of a set of streets in the city of Belo Horizonte, Brazil. As the analysis avoided usual traffic engineering indicators (speed, volume and safety), the concepts of urban vitality were represented by the conditions that make streets and squares more lively and attractive to people.…”

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confidence: 99%

Editorial

Silva¹

2016

Proceedings of the Institution of Civil Engineers - Urban Desig

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The multiplicity and complexity of the design and planning issues found in Latin American cities have stimulated us to organise this themed issue. More than a simple motivation, however, we knew it would be a challenge. In the last century, the region has undergone many changes in urban planning as a consequence of an intense population growth, several internal and external migration waves, and modifications in urban transportation systems. The planning profession has had to deal with different challenges at different periods (e.g. a very high demand for housing and other urban infrastructures). Energy, environmental and social issues are also a crucial part of the current planning agenda. The distinct nature of the problems was evident in the list of more than 60 potential contributions initially submitted as abstracts, six of which were selected, after a thorough evaluation process, as full papers for this edition.The first two contributions regard the assessment and planning of the urban environment. The focus of the first paper, written by Pessoa et al. (2016), is essentially on social aspects of the city. The authors try to highlight the potential social consequences, in addition to the inherent spatial aspects, of what is defined as 'urban porosity'. Porosity is used as a metaphor for the description of the spatial discontinuities particularly common in Latin American cities. The authors use a 'porosity index' created from statistical data from 12 Brazilian metropolises to demonstrate that porosity may exert both positive and negative influences on the resilience of urban systems. In the end, porosity was seen as an opportunity for improving resilience in the built environment. Barros et al. (2016) addressed another form of assessment of the urban environment through the analysis of high spatial resolution images. The authors aimed to identify residential patterns of three urban land use classes through the analysis of the parameters, graphics and results of variograms. In that case, the variograms are based on the grey level of pixels of orbital images of the Cabuçu de Baixo river basin, which is located in the northern part of São Paulo city. The authors concluded that the methodology can be useful for urban planning, as, for example, a fast and low-cost tool for the characterisation of the morphology of the city.The second pair of papers is more closely related to aspects of the urban quality of life. Masiero and de Souza (2016) investigated the potential for high humidity to control the air temperature. The effects of the impounding of water bodies and trees were monitored in different points of the Brazilian city São José do Rio Preto. Three of such points are of particular interest for the conclusions. The first was located at the margin of a dam, the second was located 200 m from the margin in an impervious soil and low built density area, and the third was located 400 m away from the first point under a tree. Data on air temperatures, humidity, wind speeds and wind directions were also registered a...

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Urban land use pattern identification using variogram on image

Cited by 2 publications

References 24 publications

Assessing Discrepancies between Official Economic Statistics and Land Use through a Field Inventory System

Assessing Discrepancies between Official Economic Statistics and Land Use through a Field Inventory System

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