Integração do elemento vegetal no edificado

Esta dissertação é muito mais do que um trabalho sobre ajardinamento de edifícios, pois pretende-se que seja uma ferramenta de ajuda em benefício da transformação de milhares de metros quadrados, das coberturas e das fachadas, muitas vezes negligenciados, em espaços verdes públicos beneficiando, não somente, os promotores imobiliários mas, acima de tudo os seus ocupantes e usufrutuários, que desta forma podem tirar partido de novos espaços de estar, ao ar livre. Enquanto a cidade, ao nível térreo, apresenta um aumento de tráfego rodoviário, com inegável poluição e confusão, é possível, desta forma, usufruir de um espaço aberto. Esta dissertação procura estudar os edifícios que já integram o elemento vegetal no seu conceito e que sejam um sucesso na forma como usam o elemento vegetal, de modo a divulgar as técnicas de construção, entender as decisões dos projectistas e o impacto nos utilizadores que habitam e usufruem dos espaços – Análise-Pós-Ocupação. Esta dissertação pretende demonstrar o quanto é importante que as cidades apresentem espaços verdes para uso da população. As zonas verdes existentes nas cidades são inequivocamente um importante indicador da qualidade ambiental existente nessas mesmas cidades. As coberturas e fachadas verdes arrefecem os edifícios, capturam e filtram as águas da chuva, proporcionam habitat à vida selvagem, reduzem o efeito de estufa das cidades, proporcionam uma preciosidade estética, uma experiência recreativa e por vezes comida, para os habitantes das cidades. Pretende-se assim, focar os benefícios humanos, sociais e naturais que se obtêm ao introduzir vegetação nas paredes, terraços, pátios e coberturas dos edifícios. Assim foi considerado útil usar uma metodologia para também analisar o tipo de espécies usadas nos estudos de caso, e determinar a necessidade de uma ferramenta para que a selecção vegetal respeite critérios de biodiversidade e melhor adaptabilidade aos ecossistemas locais, sabendo de antemão que não podem nem pretendem substituir os habitats naturais, que as cidades também podem e devem apresentar.

Effect of internal partitioning on indoor air quality of rooms with mixing ventilation - basic study

The internal partitioning, which is frequently introduced in open-space planning due to its flexibility, was tested to study its effects on the room air quality as well as ventilation performance. For the study, physical tests using a small model room and numerical modeling using CFD computation were utilized to evaluate different test conditions employing mixing ventilation from the ceiling. The partition parameters, such as its location, height, and the gap underneath, as well as contaminant source location were tested under isothermal conditions. This paper summarizes the results from the study.

Field studies on the effect of built forms on urban wind environments

Airflow through urban environments is one of the most important factors affecting human health, outdoor and indoor thermal comfort, air quality and the energy performance of buildings. This paper presents a study on the effects of wind induced airflows through urban built form using statistical analysis. The data employed in the analysis are from the year-long simultaneous field measurements conducted at the University of Reading campus in the United Kingdom. In this study, the association between typical architectural forms and the wind environment are investigated; such forms include: a street canyon, a semi-closure, a courtyard form and a relatively open space in a low-rise building complex. Measured data captures wind speed and wind direction at six representative locations and statistical analysis identifies key factors describing the effects of built form on the resulting airflows. Factor analysis of the measured data identified meteorological and architectural layout factors as key factors. The derivation of these factors and their variation with the studied built forms are presented in detail.

The power of perceptions: exploring the role of urban design in cycling behaviours and healthy ageing

Good urban design has the power to aid in the provision of inclusive journey environments, yet traditionally neglects the perspective of the cyclist. This paper starts from the premise that more can be done to understand and articulate cyclists’ experiences and perceptions of the urban environment in which they cycle, as part of a closer linking of urban design qualities with transport planning and infrastructure interventions. This approach is particularly applicable in relation to older cyclists, a group whose needs are often poorly understood and for whom perceptions can significantly influence mobile behaviours. Currently, knowledge regarding the relationship between the built environment and physical activity, including cycling, in older adults is limited. As European countries face up to the challenges associated with ageing populations, some metropolitan regions, such as Munich, Germany, are making inroads into widening cycling’s appeal across generations through a combination of urban design, policy and infrastructure initiatives. The paper provides a systematic understanding of the urban design qualities and built environment features that affect cycling participation and have the potential to contribute towards healthy ageing. Urban design features such as legibility, aesthetics, scale and open space have been shown to influence and affect other mobile behaviours (e.g. walking), but their role as a mediator in cycle behaviour remains under-explored. Many of these design ‘qualities’ are related to individual perceptions; capturing these can help build a picture of quality in the built environment that includes an individual’s relationship with their local neighbourhood and its influences on their mobility choices. Issues of accessibility, facilities, and safety in cycling remain crucial, and, when allied to these design ‘qualities‘, provides a more rounded reflection of everyday journeys and trips taken or desired. The paper sets out the role that urban design might play in mediating these critical mobility issues, and in particular, in better understanding the ‘quality of the journey’. It concludes by highlighting the need for designers, policy makers, planners and academics to consider the role that design can play in encouraging cycle participation, especially as part of a healthy ageing agenda.

Community valuations of historic pocket parks: a Melbourne study

The internal reserve, an historic form of planned open space creating semi-private parks at the rear of residential allotments and without street frontages, can be found in Australian suburban areas of diverse socio-economic status. Internal reserves commonly express the idealism of the early town planning movement, which envisaged the internal reserve as an embedded community-building mechanism with multiple potential uses. En vogue from 1910-1930, the internal reserve concept proved problematical from the outset. Even today, while many residents agree that their reserves are responsible for the special nature of their domestic environment, others are apprehensive about safety, maintenance and custodianship. Two surveys of residents living around internal reserves in four Melbourne suburbs, conducted in 1979 and 2002, reveal a variety of opinions on the potential and importance of these spaces. Local communities were found for the most part to have negative and ambiguous perceptions of these reserves. With one exception, residents did not value the parks highly as community spaces and alternative uses may need to be explored. The results suggest that a more innovative set of tools and incentives may be needed to reinvigorate the internal reserve as a significant recreation resource for local communities.

Personal, social and environmental determinants of educational inequalities in walking: a multilevel study

Objective: To investigate the contribution of personal, social and environmental factors to mediating socioeconomic (educational) inequalities in women’s leisure-time walking and walking for transport.
Methods: A community sample of 1282 women provided survey data on walking for leisure and transport; educational level; enjoyment of, and self-efficacy for, walking; physical activity barriers and intentions; social support for physical activity; sporting/recreational club membership; dog ownership; and perceived environmental aesthetics and safety. These data were linked with objective environmental data on the density of public open space and walking tracks in the women’s local neighbourhood, coastal proximity and street connectivity.
Results: Multilevel modelling showed that different personal, social and environmental factors were associated with walking for leisure and walking for transport. Variables from all three domains explained (mediated) educational inequalities in leisure-time walking, including neighbourhood walking tracks; coastal proximity; friends’ social support; dog ownership; self-efficacy, enjoyment and intentions. On the other hand, few of the variables examined explained educational variations in walking for transport, exceptions being neighbourhood, coastal proximity, street connectivity and social support from family.
Conclusions: Public health initiatives aimed at promoting, and reducing educational inequalities in, leisure-time walking should incorporate a focus on environmental strategies, such as advocating for neighbourhood walking tracks, as well as personal and social factors. Further investigation is required to better understand the pathways by which education might influence walking for transport.

The rise and fall of the internal reserve

The 'internal reserve' distinguished world's best practice for the early garden suburb movement. These 'hidden' spaces were designed for a variety of reasons: to encourage the formation of community, promote safe play for children, offer sites for small-scale agricultural pursuits, address  topographic and drainage constraints, and facilitate conservation of natural features. They were a feature of progressive plans for British icon developments such as Hampstead Garden Suburb. As these plans travelled globally, however, the purpose of the internal reserve was less clear than their spatial form, and most languished as undistinguished, left-over spaces. The historical origins, development and demise of the internal reserve are surveyed, with a focus on the Australian experience against an Anglo-American backdrop.

How residential environments impact on health

This article describes the findings of a research study that investigated the factors (including access to nature such as parks, gardens and bodies of water) impacting on inner city high-rise residents’ health and wellbeing. The findings revealed that a range of factors impact on residents’ health and wellbeing, either directly or indirectly and suggest implications for health and community service professionals, housing management officials, park and open space managers and urban designers/planners.

How socio-economic status contributes to participation in leisure-time physical activity

The aim of this cross-sectional study was to identify individual, social, and environmental contributors (mediators) to individual- and area-level differences in leisure-time physical activity across socio-economic groups. A two-stage stratified sampling design was used to recruit 20–65 year old adults (N = 2194) living in 154 census collection districts of Adelaide, Australia (overall response rate: 12%). Participants completed two surveys six months apart (response rate on the second survey: 83%). Individual-level socio-economic status (SES) was assessed using self-report measures on educational attainment, household income, and household size. Area-level SES was assessed using census data on median household income and household size for each selected census district. Bootstrap generalized linear models were used to examine associations between SES, potential mediators, and leisure-time physical activity. The product-of-coefficient test was used to estimate mediating effects. All SES measures were independently associated with potential individual and social mediators of the SES-activity relationships. Individual- and area-level income was also associated with perceived neighborhood attributes. Self-efficacy and social support for physical activity explained virtually all of the differences in physical activity across educational attainment groups. Physical barriers to walking and access to public open space contributed in part to the explanation of differences in recreational walking across income groups. Yet, self-efficacy and social support were the key mediators of the observed relationships between individual- and area-level income and physical activity. This study suggests that in order to increase physical activity participation in the more disadvantaged segments of the population, comprehensive, multilevel interventions targeting activity-related attitudes and skills as well as social and physical environments are needed.

Thermal comfort adaptation in outdoor places

The level of international migration has been growing in the last decades creating a plurality of cultures and inspiring a multicultural nature in global cities (O'Byrne, 1997; Short and Kim, 1999; Hawkins, 2006). This created new challenges in urban planning or the management of the coexistence of different people that are having different characteristics shaping their unique identity and needs in shared places. Being the urban stages where the social interactions happen, public places are considered important parts of cities (Thompson, 2002; Varna, 2009). These places can contribute to enhance the quality of life within cities, or contrarily increase isolation and social exclusion (Lo et al.; 2003). As agreed by researchers the users’ state of comfort gives a good indication for how successful is the public outdoor places (Rosheidat et al.; 2008; Kwong et al.; 2009; Aljawabra and Nikolopoulou, 2010). In order to create a successful open space usable by all members of a community, urban designers need to satisfy their thermal comfort needs in its wider meaning according to a variety of users (Knez and Thorsson, 2006; Thorsson et al.; 2007). While assessing the thermal comfort, in addition to the strong influence of the microclimatic parameters, the term thermal adaptation seems to becoming increasingly important. The thermal comfort adaption is then a considerable issue in design guidelines of outdoor environments (Nikolopoulou and Steemers, 2003). The main aim of the research is to examine the influence of thermal adaptation and environmental attitude on participants’ thermal requirements in outdoor public places. It focuses on understanding the effect of adaptation on the thermal comfort perception of immigrants. The research methodology of the research is provided through quantitative analysis of a case study. The findings of thermal comfort investigations could be applied into improving the quality of urban areas in order to increase the outdoor activities of citizens and use of outdoor places.

Diversity and thermal comfort in outdoor places

Sustainable cities should be livable cities where people from different backgrounds and with different aspirations can meet and interact with each other. Public places being the urban stages where the social interactions happen are considered important parts of cities (Thompson, 2002; Varna, 2009). They can contribute to enhance the quality of life within cities, or contrarily increase isolation and social exclusion (Lo et al., 2003). As a consequence of globalization and the development of global cities, the level of international migration has been growing in the last decades creating a plurality of different cultures in global cities and inspiring in such cities a multicultural nature (O'Byrne, 1997; Short and Kim, 1999; Hawkins, 2006). This created new challenges in urban planning or the management of the coexistence of different people that are having different characteristics that shape their unique identity and needs in the shared spaces (Sandercock, 2004). Ideally, in order to invite a diversity of users, urban outdoor places should provide significant functional and physical qualities, and accessibility to them, which induce the fulfillment of physiological, psychological and social needs (Carr et al., 1992; Jacobs, 1993; Sandholz, 2007). Users’ state of comfort as stated by researchers gives a good indication for how successful is the public outdoor places (Rosheidat et al., 2008; Kwong et al., 2009; Aljawabra and Nikolopoulou, 2010). In order to create a successful open space usable by all members of a community, urban designers need to satisfy their comfort needs in its wider meaning according to a variety of different ages, genders and cultural backgrounds (Knez and Thorsson, 2006; Thorsson et al., 2007). The main aim of the research is to examine the influence of culture and environmental attitude on participants’ thermal requirements in outdoor public places. The paper explores the variables that constitute a successful multicultural design, issues of cultural complexity, and the measuring comfort in specific outdoor public place. Qualitative analysis of a case study provides the main research methodology of the research. The conclusion will provide a set of criteria that guide future design and development of a successful shared outdoor public places.

Telescope

Telescope is a feature length time lapse of reflections, changes in sunlight of my backyard, assembled over 20 years. Telescope starts in Super 8 and ends with digital video, shot mostly while the family were themselves at work, somewhere else. It is an emptied landscape. When people think of Australia they imagine open space and bush. But really most Australians inhabit or were born in suburban spaces, often with backyards with fences, big enough for fruit trees, lawns and clotheslines. I consider this a place of absence that speaks to many things that our culture avoids.The backyard as emblem of a White Australia that hit its highpoint in the 1950s, for example. Australia is a migrant culture settled by waves of newcomers escaping, running away from somewhere else, leaving to forget. Another story concerns the continued invisibility of the indigenous people. When the British first planted the Union Jack on Australian soil and said "there is nothing here" they set up a tradition of denial as our founding principle. This still plagues us. What is festering in Australian backyards are these denials and erasures that I try to bring out in the soundtrack, that plays like the radio that meanders through a lazy Sunday afternoon. Such sounds try to tell stories of absence, of occupation, and of a nostalgia for an Australia that no longer exists, but still palpably reverberates around the suburban backyard.

Role assessment of GIS analysis and its reliability while ranking urban sustainability using scenarios specific to regional climate, community and culture

Urban Sustainability expresses the level of conservation of a city while living a town or consuming its urban resources, but the measurement of urban sustainability depends on what are considered important indicators of conservation besides the permitted levels of consumption in accordance with adopted criteria. This criterion should have common factors that are shared for all the members tested or cities to be evaluated as in this particular case for Abu Dhabi, but also have specific factors that are related to the geographic place, community and culture, that is the measures of urban sustainability specific to a middle east climate, community and culture where GIS Vector and Raster analysis have a role or add a value in urban sustainability measurements or grading are considered herein. Scenarios were tested using various GIS data types to replicate urban history (ten years period), current status and expected future of Abu Dhabi City setting factors to climate, community needs and culture. The useful Vector or Raster GIS data sets that are related to every scenario where selected and analysed in the sense of how and how much it can benefit the urban sustainability ranking in quantity and quality tests, this besides assessing the suitable data nature, type and format, the important topology rules to be considered, the useful attributes to be added, the relationships which should be maintained between data types of a geo- database, and specify its usage in a specific scenario test, then setting weights to each and every data type representing some elements of a phenomenon related to urban suitability factor. The results of assessing the role of GIS analysis provided data collection specifications such as the measures of accuracy reliable to a certain type of GIS functional analysis used in an urban sustainability ranking scenario tests. This paper reflects the prior results of the research that is conducted to test the multidiscipline evaluation of urban sustainability using different indicator metrics, that implement vector GIS Analysis and Raster GIS analysis as basic tools to assist the evaluation and increase of its reliability besides assessing and decomposing it, after which a hypothetical implementation of the chosen evaluation model represented by various scenarios was implemented on the planned urban sustainability factors for a certain period of time to appraise the expected future grade of urban sustainability and come out with advises associated with scenarios for assuring gap filling and relative high urban future sustainability. The results this paper is reflecting are concentrating on the elements of vector and raster GIS analysis that assists the proper urban sustainability grading within the chosen model, the reliability of spatial data collected; analysis selected and resulted spatial information. Starting from selecting some important indicators to comprise the model which include regional culture, climate and community needs an example of what was used is Energy Demand & Consumption (Cooling systems). Thus, this factor is related to the climate and it‟s regional specific as the temperature varies around 30-45 degrees centigrade in city areas, GIS 3D Polygons of building data used to analyse the volume of buildings, attributes „building heights‟, estimate the number of floors from the equation, following energy demand was calculated and consumption for the unit volume, and compared it in scenario with possible sustainable energy supply or using different environmental friendly cooling systems this is followed by calculating the cooling system effects on an area unit selected to be 1 sq. km, combined with the level of greenery area, and open space, as represented by parks polygons, trees polygons, empty areas, pedestrian polygons and road surface area polygons. (initial measures showed that cooling system consumption can be reduced by around 15 -20 % with a well-planned building distributions, proper spaces and with using environmental friendly products and building material, temperature levels were also combined in the scenario extracted from satellite images as interpreted from thermal bands 3 times during the period of assessment. Other examples of the assessment of GIS analysis to urban sustainability took place included Waste Productivity, some effects of greenhouse gases measured by the intensity of road polygons and closeness to dwelling areas, industry areas as defined from land use land cover thematic maps produced from classified satellite images then vectors were created to take part in defining their role within the scenarios. City Noise and light intensity assessment was also investigated, as the region experiences rapid development and noise is magnified due to construction activities, closeness of the airports, and highways. The assessment investigated the measures taken by urban planners to reduce degradation or properly manage it. Finally as a conclusion tables were presented to reflect the scenario results in combination with GIS data types, analysis types, and the level of GIS data reliability to measure the sustainability level of a city related to cultural and regional demands.

Natah and telajakan : the role and identity in indigenous villages

There are many Indigenous villages scattered across Bali Island. Most of these villages are located surrounding a mountain so that an Indigenous village in Bali is called 'Bali Aga' or 'Bali Kuna', which means "Mountain Balinese·. Bali has unique Indigenous villages still possessing traditional village patterns in harmony with their natural environment. Natah and telajakan are an integral part of traditional housing patterns in these villages. Both are often forgotten about in contemporary housing developments in Bali, because most people in the Denpasar want to construct their building with a modern style but these do not have an eco-friendly atmosphere.Natah is the open space in the centre of a compound of Balinese traditional buildings. Natah functions as a place for traditional ceremonies; as a centre of building orientation; and, as well as ecological function. Research into natah has demonstrated that the more extensive the natah and the more luxuriant its plants the greater the reductions of wind speed and humidity modification in traditional housing (Primayatna, 2010). This means that the natah direcUy influences a better quality of living in the traditional housing. Telajakan is an outdoor open space pattern of traditional housing which is located between traditional fencing (penyengker) and drainage lines (jelinjingan), which is planted for spiritual and economic functions. Natah and telajakan are largely integral components of Balinese Indigenous villages. Most well-known Indigenous villages in Bali still retain their natural linear sequences of natah and telajakan such as Penglipuran Village, Tenganan Village, etc.The paper examines the role of natah and telajakan as part of Indigenous Balinese housing traditional patterns which serves not only aesthetic functions, but economic functions, health and ecological aspects, and informs the identity of Indigenous villages in Bali. This paper focuses on how both natah and telajakan values and patterns can be adopted for future lifestyles and development in Bali.