Since it is insufficiently clear to urban planners in the Netherlands to what extent design measures can reduce heat stress and which urban spaces are most comfortable, this study evaluates the impact of shading, urban water, and urban green on the thermal comfort of urban spaces during hot summer afternoons. The methods used include field surveys, meteorological measurements, and assessment of the PET (physiological equivalent temperature). In total, 21 locations in Amsterdam (shaded and sunny locations in parks, streets, squares, and near water bodies) were investigated. Measurements show a reduction in PET of 12 to 22 °C in spaces shaded by trees and buildings compared to sunlit areas, while water bodies and grass reduce the PET up to 4 °C maximum compared to impervious areas. Differences in air temperature between the locations are generally small and it is concluded that shading, water and grass reduce the air temperature by roughly 1 °C. The surveys (n = 1928) indicate that especially shaded areas are perceived cooler and more comfortable than sunlit locations, whereas urban spaces near water or green spaces (grass) were not perceived as cooler or thermally more comfortable. The results of this study highlight the importance of shading in urban design to reduce heat stress. The paper also discusses the differences between meteorological observations and field surveys for planning and designing cool and comfortable urban spaces. Meteorological measurements provide measurable quantities which are especially useful for setting or meeting target values or guidelines in reducing urban heat in practice.
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Introduction The provision of active parks/public open space is the key factor in promoting active living, because people and specially low-income and elderlies are being more interested in doing non-organized/informal, and no-cost sports/physical activities in outdoor spaces in recent decades (Borgers et al, 2013; Thiesen-Raaphorst, 2015; Sallis, Owen & Fisher, 2008; Humpel, Owen & Leslie, 2002). Giving the concern about low rate of physical activities among low-income minority, elderlies and over weighted people, the municipality of Groningen invested in renovation of parks/ open spaces, in order to encourage all people to become more physically active. To what degree park renovations accomplish this goal is unknown. Method We used the System for Observing Play and Recreation in Communities (SOPARC), to measure open space/park users and their physical activity levels after the renovation. We also surveyed parks users before and after renovation, and local residents about their use of the parks. Results All respondents were happy with the renovation that is increasing the social cohesion of the neighborhood. The users are mainly active young athletes and children, and the renovation significantly increased their park use. However, the improved parks/spaces do not attract inactive people. Weather condition and the different time of the day were not associated with using the park. Conclusion Park’s improvements can have a significant impact on increasing the frequency of park use, however, it is not enough to encourage inactive people to be physically active. Key words Physical activity, active living, open spaces, Groningen Reverences Borgers, J., Thibaut, E., Van der Meerschen, H., Van Reusel, B., Vos, S., & Scheerder, J. (2015). Sports participation styles revisited: A time-trend study in Belgium from the 1970s to the 2000s. International review for the sociology of sport, 50(1), 45-63. Bouckaert, G. (2006). Prestaties en prestatiemanagement in de publieke sector. Tijdschrift voor Economie en Management, 51(3), 237. Humpel, N., Owen, N., & Leslie, E. (2002). Environmental factors associated with adults’ participation in physical activity: a review. American journal of preventive medicine, 22(3), 188-199. Sallis, J. F., Cerin, E., Conway, T. L., Adams, M. A., Frank, L. D., Pratt, M., ... & Davey, R. (2016). Physical activity in relation to urban environments in 14 cities worldwide: a cross-sectional study. The Lancet. Tiessen-Raaporst, A. (2015). Rapportage sport 2014. The Hague, SCP.
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Introduction:A space’s atmosphere is an important factor in how that space is experienced. In fact, festival visitors consider the atmosphere as the most important factor in how they experience a festival (Van Vliet 2012). Atmosphere is also what distinguishes physical shops from online web shops (Van Vliet, Moes & Schrandt 2015). Much research underlines the influence of atmosphere on cognitive and emotional processes. As early as 1956, research showed that an assessment of facial expressions in photographs depended on the atmosphere of the space in which the photos were viewed (Maslow & Mintz 1956). The importance of atmosphere inspired the search for ways to influence visitors and allowing them to react to, and even (co-)design, a space’s atmosphere – from museum spaces (Noordegraaf 2012) to urban spaces, from consciously-manipulated spaces to the now inevitable layer of digital information that has entered the public sphere (Mitchell 2005). Researchers have been studying the influence of atmosphere for decades, particularly through the lens of environmental psychology, which focuses on the interplay between humans and their environment (Mehrabian & Russell 1974; Steg, Van den Berg & De Groot 2012). A milestone in atmosphere research was the introduction of the concept of ‘atmospherics’ by Kotler (1973). From here, research into atmosphere mainly took place in the context of marketing research into consumer behaviour in shops and service environments such as restaurants, hotels, museums and festivals (Van Vliet 2014). The question here is whether these gathered insights contribute to understanding how atmosphere works in open public spaces.
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Hoe kan de verblijfskwaliteit en veiligheidsperceptie van de publieke ruimte versterkt worden door de toepassing van “interactieve objecten”? (objecten die met beeld, licht, geluid en sensoren real time reageren op de gebruikers en de ruimte daarop afstemmen). De ontwikkeling van deze zogenaamde responsieve ruimte staat nog in de kinderschoenen maar is beloftevol vanwege de meerwaarde voor de leefbaarheid en het onderscheidend vermogen van de plek en de bedrijven. In Co-ReUs worden drie verschillende mkb groepen samengebracht: stedenbouwbureaus, creatieve conceptontwikkelaars en lokale ondernemers. We gebruiken de ArenA-Boulevard als proeftuin: een als ongezellig ervaren ruimte (lage verblijfskwaliteit en slechte veiligheidsperceptie). De mkb-ers lossen hiermee hun eigen praktijkproblemen op: Stedenbouwbureaus houden zich bezig met het ontwerp van de publieke ruimte. Zij merken dat hun instrumentarium (herontwerp, herbestrating etc.) te kapitaalintensief en te weinig flexibel is om de verblijfskwaliteit en veiligheidsperceptie op dit soort plekken op te lossen. De bureaus hebben behoefte aan een lichter, gerichter en responsiever instrumentarium. Ze hebben echter beperkte (technologische) kennis hoe interactieve objecten precies een bijdrage kunnen leveren. Creatieve conceptontwikkelaars hebben een ander probleem: zij hebben wél de beschikking over interactieve objecten (geluid, beeld, licht, sensoren) maar die zijn vooral kunstzinnig en evenementiëel. De objecten zijn stuk voor stuk niet ontwikkeld vanuit een stedenbouwkundige opgave waardoor ze hiervoor geen panklare oplossing vormen. Lokale mkb-ers hebben ook een probleem: zij weten niet goed hoe zij op een gecoördineerde manier invloed kunnen uitoefenen op de activering van de publieke ruimte. Project Co-ReUs: 1) analyseert hoe de ruimte wordt gebruikt (nulmeting en Programma van Eisen voor de inzet van interactieve objecten; 2) ontwikkelt ruimtelijk-interactieve interventies in co-creatie met de drie mkb groepen. 3) deze worden op het plein geplaatst en nametingen brengen de effecten in beeld. Het resultaat is een actiegerichte Handleiding met Roadmap voor de ontwikkeling van responsieve publieke ruimtes.
Smart city technologies, including artificial intelligence and computer vision, promise to bring a higher quality of life and more efficiently managed cities. However, developers, designers, and professionals working in urban management have started to realize that implementing these technologies poses numerous ethical challenges. Policy papers now call for human and public values in tech development, ethics guidelines for trustworthy A.I., and cities for digital rights. In a democratic society, these technologies should be understandable for citizens (transparency) and open for scrutiny and critique (accountability). When implementing such public values in smart city technologies, professionals face numerous knowledge gaps. Public administrators find it difficult to translate abstract values like transparency into concrete specifications to design new services. In the private sector, developers and designers still lack a ‘design vocabulary’ and exemplary projects that can inspire them to respond to transparency and accountability demands. Finally, both the public and private sectors see a need to include the public in the development of smart city technologies but haven’t found the right methods. This proposal aims to help these professionals to develop an integrated, value-based and multi-stakeholder design approach for the ethical implementation of smart city technologies. It does so by setting up a research-through-design trajectory to develop a prototype for an ethical ‘scan car’, as a concrete and urgent example for the deployment of computer vision and algorithmic governance in public space. Three (practical) knowledge gaps will be addressed. With civil servants at municipalities, we will create methods enabling them to translate public values such as transparency into concrete specifications and evaluation criteria. With designers, we will explore methods and patterns to answer these value-based requirements. Finally, we will further develop methods to engage civil society in this processes.
Urban open space has a huge impact on human health, well-being and urban ecosystems. One of the open spaces where the environmental and ecological challenges of cities manifest the most is the urban riverfront, often characterised by fragmented land use, lack of accessibility, heavy riverside vehicular traffic, and extreme degradation of river hydrology and ecology. More often than not, the current spatial design of the riverfront hinders rather than supports the delivery of ecosystem services and, in consequence, its potential to improve the health and well-being of urban inhabitants is diminished. Hence, the design of riverside open spaces is crucial. Urban and landscape design in those spaces requires instruments that can aid designers, planners, decision-makers and stakeholders in devising spatial interventions that integrate complex environmental and ecological goals in high quality public space design. By recognising the multiple environmental and ecological benefits of green space and water in the city, the project “I surf” applies a set of four design instruments, namely the Connector, the Sponge, the Integrator, and the Scaler. I surf is a three-phased project that tests, validates and updates these instruments through a design-driven research methodology involving two design workshops and expert meetings addressing three different riverside urban spaces in Amsterdam: in the Ij waterfront, along River Amstel, and on a site located on the canal network. The project concludes with an updated and transferrable instrument set available for urban and landscape design applications in Amsterdam and in other Dutch cities crossed by rivers.
