Hoe richten we de stad koel en hittebestendig in? Stadsontwerpers proberen daar vaak vanachter hun bureau oplossingen voor te bedenken op basis van kaarten, schetsen en berekeningen. Daar kan nu de 'thermal walk' aan worden toegevoegd: zelf al wandelend hitte meten en ervaren.
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Waar zijn verkoelende inrichtingsmaatregelen vooral nodig? Met deze vraag worstelen veel professionals bij gemeentes of adviesbureaus als zij de opdracht hebben een straat of wijk hittebestendig in te richten. Hittekaarten, die hitterisico’s en temperatuurverschillen in wijken weergeven, geven deels antwoord op deze vraag. Daarnaast geven veldonderzoek en metingen inzicht. Onderzoekers van de Hogeschool van Amsterdam (HvA) ontwikkelden een methode, de thermal walk, die betrokkenen laat ervaren waar het heet is, wat de gevoelstemperatuur is en welke inrichtingsmaatregelen kunnen helpen.
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The thermal walk investigates the influence of urban design on the thermal experience of pedestrians moving through a certain urban area. Thermal walks are often used by scientists to understand how residents experience heat in urban environments. However, thermal walks can also be beneficial to urban professionals working at local governments that need to adapt urban areas to rising temperatures. Thermal walks can answer their questions such as: How hot is a shopping street, a residential area, a specific walking route through the city or a station area? Which adjustments are needed to create cool spaces? Which factors determine whether the outdoor space is hot or cool and which of these factors can be included in a heat-resilient design? A thermal walk reveals and lets participants experience which urban designs are hottest, coolest or most pleasant, and which factors play a role. Therefore, thermal walks can help urban professionals by:• Mapping the heat resilience of a specific area and understanding which adjustments can help to create cooler areas; and• Teaching them the phenomenon of urban heat and the factors that lead to a heat resilient design. On the 18th of June 2019, during the ‘We make the city’ festival, we used the thermal walk to investigate the heat resilience of the walking route on a former historic naval base in the city of Amsterdam, the Marineterrein. In addition, the thermal walk was accompanied by mini-lectures in order to teach the participants about the phenomenon of urban heat.
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An important consideration for future age-friendly cities is that older people are able to live in housing appropriate for their needs. While thermal comfort in the home is vital for the health and well-being of older people, there are currently few guidelines about how to achieve this. This study is part of a research project that aims to improve the thermal environment of housing for older Australians by investigating the thermal comfort of older people living independently in South Australia and developing thermal comfort guidelines for people ageing-in-place. This paper describes the approach fundamental for developing the guidelines, using data from the study participants’ and the concept of personas to develop a number of discrete “thermal personalities”. Hierarchical Cluster Analysis (HCA) was implemented to analyse the features of research participants, resulting in six distinct clusters. Quantitative and qualitative data from earlier stages of the project were then used to develop the thermal personalities of each cluster. The thermal personalities represent di erent approaches to achieving thermal comfort, taking into account a wide range of factors including personal characteristics, ideas, beliefs and knowledge, house type, and location. Basing the guidelines on thermal personalities highlights the heterogeneity of older people and the context-dependent nature of thermal comfort in the home and will make the guidelines more user-friendly and useful. Original publication at MDPI: https://doi.org/10.3390/ijerph17228402 © 2020 by the authors. Licensee MDPI.
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In indoor comfort research, thermal comfort of care-professionals in hospital environment is a little explored topic. To address this gap, a mixed methods study, with the nursing staff in hospital wards acting as participants,was undertaken. Responses were collected during three weeks in the summer (n = 89), and four weeks in the autumn (n = 43). Analysis of the subjective feedback from nurses and the measured indoor thermal conditions revealed that the existent thermal conditions (varying between 20 and 25 °C) caused a slightly warm thermal sensation on the ASHRAE seven point scale. This led to a slightly unacceptable thermal comfort and a slightly obstructed self-appraised work performance. The results also indicated that the optimal thermal sensation for the nurses—suiting their thermal comfort requirements and work performance—would be closer to‘slightly cool’than neutral. Using a design approach of dividing the hospital ward into separate thermal zones, with different set-points for respectively patient and care-professionals’comfort, would seem to be the ideal solution that contributes positively to the work environment and, at the same time, creates avenues for energy conservation.
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Thermal comfort -the state of mind, which expresses satisfaction with the thermal environment- is an important aspect of the building design process as modern man spends most of the day indoors. This paper reviews the developments in indoor thermal comfort research and practice since the second half of the 1990s, and groups these developments around two main themes; (i) thermal comfort models and standards, and (ii) advances in computerization. Within the first theme, the PMV-model (Predicted Mean Vote), created by Fanger in the late 1960s is discussed in the light of the emergence of models of adaptive thermal comfort. The adaptive models are based on adaptive opportunities of occupants and are related to options of personal control of the indoor climate and psychology and performance. Both models have been considered in the latest round of thermal comfort standard revisions. The second theme focuses on the ever increasing role played by computerization in thermal comfort research and practice, including sophisticated multi-segmental modeling and building performance simulation, transient thermal conditions and interactions, thermal manikins.
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At a time when the population is ageing and most people choose to live in their own home for as long as possible, it is important to consider various aspects of supportive and comfortable environments for housing. This study, conducted in South Australia, aims to provide information about the links between the type of housing in which older people live, the weather and occupants’ heating and cooling behaviours as well as their health and well-being. The study used a Computer-Assisted Telephone Interviewing (CATI) system to survey 250 people aged 65 years and over who lived in their own home. The respondents were recruited from three regions representing the three climate zones in South Australia: semi-arid, warm temperate and temperate. The results show that while the majority of respondents reported being in good health, many lived in dwellings with minimal shading and no wall insulation and appeared to rely on the use of heaters and coolers to achieve thermally comfortable conditions. Concerns over the cost of heating and cooling were shared among the majority of respondents and particularly among people with low incomes. Findings from this study highlight the importance of providing information to older people, carers, designers and policy makers about the interrelationships between weather, housing design, heating and cooling behaviours, thermal comfort, energy use and health and well-being, in order to support older people to age in place independently and healthily. https://doi.org/10.1016/j.buildenv.2019.03.023 LinkedIn: https://www.linkedin.com/in/jvhoof1980/
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Almere is a green city where the greenery extends into the centre through a framework of nature, forests, parks and canals. With this green environment, Almere fulfils an important condition for a liveable city, where it is pleasant to live and work. An important goal for the municipality is to challenge its residents to develop a healthy lifestyle by using that green framework.But what really motivates Almeerders to go outside to exercise, enjoy the surroundings and meet each other? Are there sufficient green meeting or sports facilities nearby? Could the routes that connect the living and working environment with the larger parks or forests be better designed? And can those routes simultaneously contribute to climate adaptation?With the Green Escape Challenge, we invited students and young professionals to work on these assignments together.
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The development of ‘age-friendly cities’ has become a major area of work in the field of ageing and the built environment. This movement is driven by the observation that cities are home to an ever-increasing ageing population. Over the past decade, a multitude of age-friendly initiatives have been developed with the aim of making physical and social environments more favourable for older people's well-being, health and ability to live in the community. This article explores ten key questions associated with the age-friendly cities and communities' movement, with a particular focus on the built environment. It provides an overview of the history of the age-friendly cities' movement and the underlying models, the aspects of the built environment that are relevant for age-friendly cities, the ways age-friendliness can be evaluated, and the interactions between age-friendly cities initiatives and other strategic agendas such as smart cities. The paper concludes by discussing future perspectives and possible directions for further development of the age-friendly movement. © 2021 The Authors. Published by Elsevier Ltd. https://doi.org/10.1016/j.buildenv.2021.107922 LinkedIn: https://www.linkedin.com/in/jvhoof1980/
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Ook uit internationaal wetenschappelijk onderzoek blijkt dat er verschillen zijn tussen ouderen in de stad en op het platteland [3-5]. In de rijke delen van de Europese Unie hebben ouderen in de landelijke gebieden een hogere levenstevredenheid dan in de stad. Mensen lijken tevreden in een dorp, wellicht omdat het verwachtingspatroon geringer is. Als het op veroudering aankomt, biedt de hogere dichtheid van de stad een grotere nabijheid tot allerlei diensten die de kwaliteit van leven van ouderen vergroten. Door specifieke economische factoren kunnen deze diensten niet in dezelfde mate worden aangeboden in landelijke gebieden [6]. Woonomstandigheden, zo blijkt uit onderzoek [7], zijn beter voor onze ouderen in de stad dan op het platteland, hoewel de verschillen niet zo uitgesproken groot zijn. En dan heb je nog de gesegregeerde woonwijken voor ouderen, zoals in de Verenigde Staten. Denk daarbij aan Sun City Arizona en The Villages in Florida [8, 9]. Deze wijken bieden een eenheidsworst en zonderen ouderen af in een cocon van geboden comfort, waarbij zij verdwijnen uit het reguliere straatbeeld van omliggende steden. Een in vrijheid gekozen gevangenschap. Een echte seniorvriendelijke stad is een generatievriendelijke stad zoals u wilt, waar niet alleen ruimte is voor één generatie, maar voor alle generaties: van wieg tot graf.
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