scholarly journals Defining Parameters for Urban-Environmental Quality Assessment

2021 ◽  
Vol 10 (4) ◽  
pp. 1-13
Author(s):  
Oto Novacek ◽  
Jesus Lopez Baeza ◽  
Jan Barski ◽  
Jorg Rainer Noenning

Measuring the quality of the urban environment has been a matter of research rooted in different fields of knowledge. Several methods and indicators have been deployed through the years, as have horizontal approaches from mixed perspectives. However, currently established indexes to measure urban performance depend on the actual definition of quality and on the weighted relevance of the different features influencing it. This contribution compares the level of emphasis paired by established indexes to measure urban quality, in contrast to what people mention the most when asked about what they like or dislike about the urban environment. The underlying idea is to obtain first-hand information about the way people make decisions about their movements in urban space. As a result, we observe a lack of correlation between the two groups of indicators, and between the key urban elements driving positive and negative emotions. In conclusion, we observe a tendency of people to perceive and report individual physical elements, rather than intangible concepts like safety or comfort.

2021 ◽  
Vol 10 (4) ◽  
pp. 0-0

Measuring the quality of the urban environment has been a matter of research rooted in different fields of knowledge. Several methods and indicators have been deployed through the years, as have horizontal approaches from mixed perspectives. However, currently established indexes to measure urban performance depend on the actual definition of quality and on the weighted relevance of the different features influencing it. This contribution compares the level of emphasis paired by established indexes to measure urban quality, in contrast to what people mention the most when asked about what they like or dislike about the urban environment. The underlying idea is to obtain first-hand information about the way people make decisions about their movements in urban space. As a result, we observe a lack of correlation between the two groups of indicators, and between the key urban elements driving positive and negative emotions. In conclusion, we observe a tendency of people to perceive and report individual physical elements, rather than intangible concepts like safety or comfort.


Author(s):  
Marília Steinberger

O trabalho parte de uma leitura do conhecimento produzido sobre meio ambiente, no âmbito dos Encontros da Anpur dos anos 90, para discutir a emergência do meio ambiente urbano como área de investigação que constrói e reconstrói mitos sobre a sustentabilidade ou insustentabilidade do espaço urbano. Para tanto, numa primeira seção, são analisados documentos que constituem o marco institucional da área e realiza-se um breve resgate de marcos teórico-conceituais estabelecidos em algumas disciplinas, sugerindo que eles devem ser desconstruídos, para que o meio ambiente urbano seja apreendido com um olhar baseado em uma racionalidade não-instrumental. Na seção seguinte, são discutidos os focos social-histórico e político-espacial de três pares de noções/conceitos: ambiente/meio ambiente, desenvolvimento sustentável/sustentabilidade e território/urbanização, para se chegar a um entendimento sobre sustentabilidade urbana. Tais focos orientam as questões centrais que perpassam a área: qualidade ambiental urbana, instrumentos de gestão ambiental e conflito de interesses entre os atores. À guisa de conclusão, mostra-se que, embora a maioria dos discursos sobre o meio ambiente urbano considere o espaço urbano como insustentável, há caminhos que apontam para uma definição da área.Palavras-chave: meio ambiente; sustentabilidade; espaço urbano. Abstract: The work is based on a study of knowledge concerning the environment, within the scope of the 1990s ANPUR Meetings, which discussed the emergence of the urban environment as a field of inquiry that constructs and reconstructs myths concerning the sustainability or unsustainability of urban space. To this end, the first section analyses documents which constitute the institutional imprint of the field, followed by a brief recollection of theoretical-conceptual landmarks established in some disciplines. It is suggested that these be deconstructed, so that the urban environment may be understood through a perspective based on a non-instrumental rationality. In the following section, the socio-historical and politico-spatial focuses of three pairs of notions/concepts are discussed: ambient-environment, sustainable development-sustainability and territory-urbanization, in order to arrive at an understanding of urban sustainability. Such focuses guide the central issues that are related to the field: urban environmental quality, instruments of environmental management and the conflict of interests among actors. In conclusion it is shown that, although most of the discourse on the urban environment considers urban space to be unsustainable, there are paths that point to a definition of the field.Keywords: environment; sustainability; urban space.


2011 ◽  
Vol 38 (6) ◽  
pp. 6805-6813 ◽  
Author(s):  
Jorge Garcia-Gutierrez ◽  
Luis Gonçalves-Seco ◽  
Jose C. Riquelme-Santos

2019 ◽  
Vol 7 (3) ◽  
pp. 184-205
Author(s):  
Snejana Dineva ◽  
Zlatin Zlatev

In this paper, an analysis of the potential use of the surface and geometric characteristics of mulberry leaves as parameters for environmental quality assessment is made. Methods have been used to reduce the amount of data of latent variables, linear and kernel variants of principal components. It has been found that a kernel variant of the principal components, combined with nonlinear separating functions of discriminant analysis and a method of support vector machines, are an appropriate methods for distinguishing the degree of air pollution from the mulberry leaf data. The results obtained could be used as preliminary baseline data for future evaluations and studies related to remote monitoring of urban air quality.


2011 ◽  
Vol 356-360 ◽  
pp. 903-907
Author(s):  
Ai Jun Li ◽  
Yan Ying Guo ◽  
Feng He ◽  
Rui Jia Yuan

There are few indicator systems available for monitoring and assessing the environmental quality of large-scale regions. We constructed an indicator system for integrated assessment of the environmental quality of the Dianchi Basin. First, the definition of regional environmental quality is determined by both the supply of materials and energy in the region and the extent to which the region is polluted. Second, the indicator categories used for assessment mainly comprise vegetation biomass and the concentrations of various pollutants. Third, owing to spatial heterogeneity of a region, evaluation of the regional environment first requires division into sub-regions, each of which should be relatively homogeneous with regard to physical conditions (e.g. marine and terrestrial) and appearance (e.g. vegetation cover). Finally, the mathematical models for assessing regional environmental quality can be built according to the relationships between the various indicators, the sub-regions and regional environmental quality. The indicator system built using this approach can reflect environmental changes over time and identifies reasons for environmental variation.


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