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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This article will explore the Cradle to Cradle (C2C) framework for urban environments, focusing on the perception, utilization and maintenance of parks. The case study explores the perception of urban flora and the value of greenery in everyday life in The Netherlands. The reflection section addresses the difference between conventional and C2C approaches to greenery on the one hand and current green management policies and public opinion on the other hand. The author reflects on how urban planning policies can be better geared towards public awareness of C2C, and towards the implementation of ecologically benign management of urban flora. It is proposed that an implementation of urban green management consistent with C2C is feasible and desirable. It is feasible given the favorable shifts in public opinion in relation to urban sustainability, and it is desirable due to the basic cost-benefit analysis and increased need for urban sustainability. This is a post-peer-review, pre-copyedit version of an article published in Urban Ecosystems. The final authenticated version is available online at: https://doi.org/10.1007/s11252-015-0468-2 https://www.linkedin.com/in/helenkopnina/
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Green spaces play an important role in urban areas. We study the accessibility of green urban areas by combining open data sets about green with population size data. We develop a mathematical model to define the population density of a green area and calculate the available green space depending on the location. To this end, we do not only consider walking distance to and size of the green area, but also take into account the local population size. Our model quantifies how the available green space depends on the location in the city, such that heavily populated areas have a small amount of green available, even when closely located to a green area.
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In 2021, Citython editions were held for the European cities of Eindhoven (Netherlands), Bilbao and Barcelona (Spain), Hamburg (Germany), and Lublin (Poland). Within this project, BUAS contributed to the organization of CITYTHON Eindhoven in cooperation with CARNET (an initiative by CIT UPC) and City of Eindhoven – an event which gives young talent the opportunity to work with mentors and experts for the development of innovative urban solutions. Participants of CITYTHON Eindhoven worked on three challenges:- Traffic safety in school zones - Travel to the campus- Make the city healthy The event took place between 18 May and 2 June 2021 with various experts, for example from ASML, City of Eindhoven and University of Amsterdam, giving inspirational talks and mentoring students throughout the ideation and solutions development process. The teams presented their solutions during the Dutch Technology Week and the winners were announced by Monique List-de Roos (Alderman Mobility and Transport, City of Eindhoven) on 2 June 2021. The role of BUAS within this project was to assist City of Eindhoven with the development of the challenges to be tackled by the participating teams, and find relevant speakers and mentors who would be supporting the students for the development of their solutions and jury members who would determine the winning teams. The project ended with a round table “Green and Safe Mobility for all: 5 Smart City(thon) Case studies” on November 17 organized as part of Smart City Expo World Congress 2021 in Barcelona. This project is funded by EIT Urban Mobility, an initiative of the European Institute of Innovation and Technology (EIT), a body of the European Union. EIT Urban Mobility acts to accelerate positive change on mobility to make urban spaces more livable. Learn more: eiturbanmobility.eu.Collaborating partnersCARNET (Lead organisation); Barcelona Institute of Technology for Habitat; Barcelona City Council; Bilbao City Hall; City of Hamburg; City of Eindhoven,; City of Lublin; Digital Hub Logistics Hamburg; Technical University of Catalonia, Tecnalia; UPC Technology Center.
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.
Cities are environments in which people like to live and work. Yet, cities can also be stressful environments. Natural environments help people to relax.So, it would be logical if we brought more nature into cities. Cities have always had green spaces (cemeteries, allotments, parks), but in present-day society many people are too busy and allow themselves too little time for going to a park. By better integrating natural elements into our everyday surroundings, nature is brought, as it were, to people instead of the other way round. In every street, for example there are some green spaces, whether it is a tree, flowerbed or hedge; forms of green spaces that people are likely to encounter in their daily lives (unawares).This research studies how we can design green streets as well as possible, so that it helps people to relieve their daily urban stress as well as possible.
