Understanding the Role of Urban Morphology and Green Areas Configuration During Heat Waves

Author(s):  
Marialuce Stanganelli ◽  
Carlo Gerundo

This paper focuses on urban planning strategies to adapt cities to the increasing rising of temperatures during summer heat waves. The main target is to investigate which configuration and distribution pattern of green spaces could effectively improve natural cooling of urban environments. Although the benefit that green areas give to natural cooling is well known, this kind of studies has hardly been carried out, especially at an urban scale where it is crucial to define quantities and density of green areas to address open spaces design. To reach this goal, a methodology based on the interpretation of the statistical correlation among temperature, urban parameters and green areas configurational indicators was implemented and applied to the case study of the Municipality of Naples, performing all the analysis in a GIS. Results provide guidelines to improve natural cooling in urban areas adopting the most effective configuration and distribution of green areas within a densely-built context.

Author(s):  
Marialuce Stanganelli ◽  
Carlo Gerundo

This paper focuses on urban planning strategies to adapt cities to the increasing rising of temperatures during summer heat waves. The main target is to investigate which configuration and distribution pattern of green spaces could effectively improve natural cooling of urban environments. Although the benefit that green areas give to natural cooling is well known, this kind of studies has hardly been carried out, especially at an urban scale where it is crucial to define quantities and density of green areas to address open spaces design. To reach this goal, a methodology based on the interpretation of the statistical correlation among temperature, urban parameters and green areas configurational indicators was implemented and applied to the case study of the Municipality of Naples, performing all the analysis in a GIS. Results provide guidelines to improve natural cooling in urban areas adopting the most effective configuration and distribution of green areas within a densely-built context.


2021 ◽  
Vol 13 (19) ◽  
pp. 10611
Author(s):  
Karolina Kais ◽  
Marlena Gołaś ◽  
Marzena Suchocka

One of the consequences of the constant urban development in numerous countries is a growing concentration of air pollution, which adversely affects both the environment and people’s health. One of the ways of changing this negative trend is to maintain green areas and trees within cities, as they serve many ecosystem functions, including biological absorption of particles and other types of air pollution. This article provides the findings of a study carried out among the residents of Warsaw, the capital of Poland, in order to assess social awareness of air pollution and the importance of trees. The study of the residents’ awareness was supplemented with the assessment of the parameters of the trees’ capacity for pollution absorption in selected locations performed with the help of the i-Tree Eco tool, which allowed the authors to compare the residents’ impressions on the role of trees in the process of absorption of pollution with their actual potential. The analyses showed that the majority of city residents are concerned with the problem of air in the city, but at the same time failing to notice its negative impact on their health. The majority of respondents were not aware of the role the trees play in the process of pollution absorption, suggesting that there is a real need for raising social awareness of functions served by trees and green areas in urban spaces. The comparison of the city residents’ opinions on the importance of trees in the process of pollution absorption with objective data obtained with the help of i-Tree Eco tool shows that the majority of people’s impressions of pollution absorption by trees in urban areas is correct.


Author(s):  
Alenka Fikfak ◽  
Miha Konjar ◽  
Janez Peter Grom ◽  
Saja Kosanovic ◽  
Martina Zbašnik-Senegačnik

The built environment has a great impact on the quality of urban climate, a comfortable living environment, overheating, and detection of changes in Urban Heat Islands (UHI). Despite the effects that raised outdoor temperatures have on human well-being and health, being in open outdoor spaces is strongly encouraged. This article deals with open green urban areas. The study was focused on searching for the relationships between the various elements, such us outdoor thermal comfort, the urban heat island, green areas, and active leisure time. The well-being in open spaces has be studied on the case of The Path of Remembrance and Comradeship (PATH) in the city of Ljubljana, Slovenia. PATH is a circular recreation ground (almost 33 km long) and passes from the urban to the natural landscape area. PATH constitutes an important element of the urban space and confirms the identity and image of Ljubljana. It is most popular for walking and jogging.Overheating at the PATH was studied using multiple indicators, which were broken down into detail at five sites with different urban morphology, green areas, water, and paved areas.


2011 ◽  
Vol 4 (3) ◽  
pp. 476
Author(s):  
Antonio Carlos Da Silva Oscar Júnior ◽  
Ana Maria De Paiva Macedo Brandão

Hodiernamente as ciências do tempo e do clima assumem protagonismo no meio cientifico devido às questões e polêmicas atuais acerca das mudanças climáticas. Tendo em vista esse novo espaço, esse trabalho tem como objetivo trazer uma contribuição teórico-metodologica para aqueles que desejam se debruçar sobre essas novas questões que afligem o mundo moderno. Para aprofundar as discussões deste artigo, abordaremos o caso de Duque de Caxias, localizado na Baixada Fluminense do Rio de Janeiro, usando a também como caso exemplo para explicar como as dinâmicas socioeconômicas, deixando suas marcas no território intensificam os riscos naturais e aprofundam as vulnerabilidades sociais. No aflorar dessa nova agenda de pesquisas é papel dos Geógrafos aprofundarem suas análises em prol de um ordenamento territorial, e gestão do espaço condizente com as novas necessidades da sociedade. Palavras-Chave: Clima Urbano, Mudanças Climáticas, Planejamento Urbano.  Theoretical and Methodological Rain for the Study of Vulnerable in Urban Environments: a Case Study of Urban Climate Duque de Caxias-RJ  ABSTRACT Today the sciences of weather and climate took center stage in the middle due to scientific issues and controversies about the current climate. In light of this new space, this work aims to bring a theoretical and methodological contributions for those Who wish to dwell on these new issues that plague the modern world. For further discussion of this article, we discuss the case of Duque de Caxias, located in the Baixada Fluminense in Rio de Janeiro, also using as a case example to explain how socio-economic dynamics, leaving it’s mark in the territory of natural hazards intensify and deepen the vulnerabilities social. Flourishin this new research agenda is the role of geographers deepen their analysis in favor of a use and land management consistent with the changing needs of society.  Keywords: Urban Climate, Climate Change, Runoff, Urban Management


Author(s):  
F. Guzzetti ◽  
K. L. N. Anyabolu ◽  
L. D’Ambrosio ◽  
G. Marchetti

<p><strong>Abstract.</strong> In urban areas, the “built” is defined by many different elements. Not only buildings but also open spaces containing green areas, viability, urban furniture, underground facilities. While the H-BIM sector focuses, rightly, on buildings of great historical significance, in our case it is been consider a part of the built that it usually not analyse: the urban open space. One of the interesting themes is the possibility of having a single tool that integrates the different objects present in a complex environment such as the urban area. The process with BIM model could allow a huge saving in terms of time and costs considering public tender, maintenance or construction phase of a project. Facility management operating through BIM is another relevant theme considering the whole life of a construction. Finally, another important theme is the connections between elements above the ground (visible elements) and subsoil (not visible elements), not only for the administrations but also if related to the HBIM environment.</p><p>The paper reports the analysis of the experience performed, particularly related to questions about detail and accuracy of the BIM model.</p><p>A methodology for modelling open spaces is been assuming, it is described possible improvements and considerations on the result.</p>


Urban Health ◽  
2019 ◽  
pp. 248-255
Author(s):  
Abby E. Rudolph

One of the distinguishing features of urban environments is the close proximity of their residents. There is ample evidence that our social networks influence how we think, feel, and behave and, through doing so, shape our health. Therefore, the challenge and opportunity for urban areas is how to foster social relationships and interactions that promote healthier behaviors, reduce the risk of disease transmission, and remove or serve as buffers against existing barriers to health service utilization. This chapter provides a theoretical framework for thinking about the role of social networks in public health and provides two examples how social network analysis has been used to better understand two major public health concerns in urban settings.


2019 ◽  
Vol 47 (2) ◽  
pp. 287-303
Author(s):  
Shuhai Zhang ◽  
Gert de Roo ◽  
Ward Rauws

This article explores the mechanisms of urban self-organization and the role of formal institutions in shaping peri-urban areas. A case study of Gaobeidian, a former rural village that is now part of Beijing, examines the mechanisms of change and the interdependent relations between institutions and bottom-up initiatives that drive peri-urban transformations. The paper presents two main contributions: (1) it identifies the differences between government-controlled planning, shared governance, self-governance and self-organization and how these intertwine in urban transformations; (2) it proposes three distinct roles played by institutions in relation to self-organization: triggering, constraining and enabling. The empirical study of this Chinese case will enrich the current debate on planning for self-organizing cities by revealing the impact of, and the various responses to, self-organization dynamics in a hierarchical institutional environment.


Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 525 ◽  
Author(s):  
Edwin R. Grijalva ◽  
José María López Martínez

The emissions of CO2 gas caused by transport in urban areas are increasingly serious, and the public transport sector plays a vital role in society, especially when considering the increased demands for mobility. New energy technologies in urban mobility are being introduced, as evidenced by the electric vehicle. We evaluated the positive environmental effects in terms of CO2 emissions that would be produced by the replacement of conventional urban transport bus fleets by electric buses. The simulation of an electric urban bus conceptual model is presented as a case study. The model is validated using the speed and height profiles of the most representative route within the city of Madrid—the C1 line. We assumed that the vehicle fleet is charged using the electric grid at night, when energy demand is low, the cost of energy is low, and energy is produced with a large provision of renewable energy, principally wind power. For the results, we considered the percentage of fleet replacement and the Spanish electricity mix. The analysis shows that by gradually replacing the current fleet of buses by electric buses over 10 years (2020 to 2030), CO2 emissions would be reduced by up to 92.6% compared to 2018 levels.


2018 ◽  
Vol 23 (1) ◽  
Author(s):  
DOINA CAPSA ◽  
VALENTIN NEDEFF ◽  
NARCIS BARSAN ◽  
Emilian Mosnegutu ◽  
DANA CHITIMUS

<p>Air quality depends on the type and size of industrial activities, traffic intensity, municipal and industrial waste management etc. In addition, air quality in urban areas depends by the green areas management, population density, climatic conditions and geographic. This paper study the correlations between the most important meteorological factors, humidity, temperature, wind and benzene accidental pollution, with influence on pollutant dispersion (related to 2008). The correlation were performed by taken in to considerations the accidental benzene pollution recorded in 2008 in Bacau City and meteorological factor recorded at the regional meteorological station.</p>


GeoTextos ◽  
2012 ◽  
Vol 8 (1) ◽  
Author(s):  
Gabriel Salles Maria de Macedo Rego ◽  
João Luis Jesus Fernandes

O trabalho em questão analisa, segundo o prisma da Geografia, a importância do patrimônio natural em ambiente urbano. Como objetivo principal, pretende compreender a percepção que os residentes na cidade de Coimbra (Portugal) têm da natureza e do papel que o património natural pode desempenhar na qualidade de vida da cidade. Para alcançar esses objetivos, inicia-se o texto com uma reflexão teórica que percorre conceitos como a topofilia e os olhares sociais sobre o ambiente e a natureza em contexto citadino. Depois, seguem-se dois procedimentos diferentes, mas complementares: (1) Como forma de registro da presença e do estado de conservação da natureza em Coimbra e da interação entre os cidadãos e o patrimônio natural naquele espaço geográfico, fez-se uma análise de campo com a montagem de um banco de dados fotográficos que representam excertos deste território; (2) Inquéritos por meio de entrevistas, em dois bairros da cidade – Vale das Flores e Monte Formoso – privilegiando adultos com idades superiores aos 30 anos. Apesar de a pesquisa ter revelado algumas contradições entre a prática e o discurso na percepção e na relação topofílica para com as áreas verdes urbanas, concluiu-se que a presença do patrimônio natural no ambiente urbano ainda se apresenta como uma questão secundária. Contudo, também se verificou que, para reforço desta relação simbólica e/ou funcional, o patrimônio natural deve estar presente em todo o contínuo urbano e não ficar restrito aos bairros mais elitizados ou aos parques. Abstract THE CITIZENS TOPOPHILIA AND THE NATURAL URBAN PATRIMONY: COIMBRA’S CASE STUDY This paper analyzes the importance of natural patrimony in the urban environment, under the prism of geography. The main objective of this study is to understand how nature is perceived in the city of Coimbra (Portugal) and the role that green areas and natural patrimony has in the quality of urban life. To achieve these objectives, this article discusses the conceptual argument about environmental perception, topophilia and the nature in the city. For this, it was used two different procedures: (1) Field analysis on the city of Coimbra with purpose to setting up a photographic database, to verify the presence, conservation and relationship to the natural patrimony inserted in urban environment; (2) Investigation through interviews in two neighborhoods of the city – Vale das Flores and Monte Formoso. The data revealed that the perception and the topophilic relationship to urban green areas are marked by the contradiction between practice and discourse. It was concluded that the presence of natural patrimony in the urban environment still present itself as a secondary issue. Moreover, it was concluded that to strengthen this relationship symbolically and/or functionally the natural patrimony must be present throughout all the continuous urban areas and should not be restricted to elite neighborhoods or parks.


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