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.
According to a governmental decision, all (re)constructions in Dutch cities starting by 2020 have to be climate resilient. Part of this climate resilience is also adaptation to (extreme) heat. Although urban heat, its causes, consequences, and potential adaptation measures, have been extensively studied by scientists all over the world, the understanding of this problem among practitioners is still limited. Local governments are struggling with defining the urgency and finding the right arguments for adaptation to this aspect of climate change. Also questions asked by municipality officers often differ from those asked (and answered) by scientists. How do you define “heat stress”? What are the best adaptation measures for our city? How do we know we have reached “heat resilience”? Or; Shall we just do what they do in Italy?Project Heat Resilient Cities is a cooperation of two research institutes, 13 municipalities, and a water authority in Netherlands. The aim of this project is to bring the current knowledge of urban heat adaptation to practice and to fill in the research gabs. The research focuses on clear visualizations of problematic areas, applicable heat resilient measures in Dutch context, and design guidelines leading towards more heat resilient cities. In this presentation, we will present an overview of practical tools (maps, instruments measures, visualizations, guidelines) that cities could use put heat resilience into practice.
The future will be warmer with more tropical days, heat stress and related impacts for the healthy and liveable city. This is clear from many scientific studies and papers. Yet many local governments in the Netherlands claim to have insufficient understanding of the importance of these impacts in order to make the necessary step to climate adaptation and to take practical actions to manage the risks associated with rising heat levels. They struggle with defining the urgency of heat stress and finding good arguments for the need to adapt urban environments to rising temperatures. In order to provide urban professionals with reasons to adapt their urban environments to heat, we analyzed the potential impacts of urban heat from international policy reports and scientific literature. We summarized the impacts in a mind map. This map visualizes the large number and variety of heat-related risks. They can be subdivided into risks for health, open space, liveability, water and infrastructure networks. We believe that this mind map provides useful insight into the reasons to take heat adaptation actions. It can also be a helpful visual for urban professionals in outlining the reasons to take action for heat adaptation.
“Empowering learners to create a sustainable future” This is the mission of Centre of Expertise Mission-Zero at The Hague University of Applied Sciences (THUAS). The postdoc candidate will expand the existing knowledge on biomimicry, which she teaches and researches, as a strategy to fulfil the mission of Mission-Zero. We know when tackling a design challenge, teams have difficulties sifting through the mass of information they encounter. The candidate aims to recognize the value of systematic biomimicry, leading the way towards the ecosystems services we need tomorrow (Pedersen Zari, 2017). Globally, biomimicry demonstrates strategies contributing to solving global challenges such as Urban Heat Islands (UHI) and human interferences, rethinking how climate and circular challenges are approached. Examples like Eastgate building (Pearce, 2016) have demonstrated successes in the field. While biomimicry offers guidelines and methodology, there is insufficient research on complex problem solving that systems-thinking requires. Our research question: Which factors are needed to help (novice) professionals initiate systems-thinking methods as part of their strategy? A solution should enable them to approach challenges in a systems-thinking manner just like nature does, to regenerate and resume projects. Our focus lies with challenges in two industries with many unsustainable practices and where a sizeable impact is possible: the built environment (Circularity Gap, 2021) and fashion (Joung, 2014). Mission Zero has identified a high demand for Biomimicry in these industries. This critical approach: 1) studies existing biomimetic tools, testing and defining gaps; 2) identifies needs of educators and professionals during and after an inter-disciplinary minor at The Hague University; and, 3) translates findings into shareable best practices through publications of results. Findings will be implemented into tangible engaging tools for educational and professional settings. Knowledge will be inclusive and disseminated to large audiences by focusing on communication through social media and intervention conferences.
Sinds januari 2015 werken we met lector Jeroen Kluck van de Hogeschool van Amsterdam in een onderzoeksproject 'De klimaatbestendige stad' [1] dat tot doel heeft te onderzoeken hoe gemeenten wijken en straten klimaatbestendig kunnen inrichten. De focus van het onderzoek ligt op het duiden van de urgentie van hittestress, op het ontwerpen van standaard klimaatbestendige situaties en op een afweging van kosten en baten (o.a. voordelen van vergroening). Onderzoekers en studenten van de Hanze en hogeschool Amsterdam hebben in dat kader gemeten aan de hitte tijdens de hete zomer van 2015. Ook zijn er testen uitgevoerd naar diverse groen blauwe voorzieningen in het stedelijk gebied naar het lange termijn functioneren ervan. In Hoogeveen is in workshops in detail gekeken naar oplossingen in diverse straten, in de laatste stap worden de kosten gedetailleerd en concrete inrichting van groen blauwe voorzieningen vergeleken met traditionele inrichting op diverse criteria.
Dit project richt zich op het in kaart brengen van de rol van servicedesignbureaus in het versnellen van de transformaties die nodig zijn om de problemen in Nederlandse stedelijke kernen aan te pakken. De creatieve industrie is bij uitstek in staat oplossingen voor stedelijke kernen te ontwikkelen en in dit project onderzoeken hoe zij met Key Enabling Methodologies bezoekersbelevingen in steden kunnen orkestreren en ontwerpen. Zij ondersteunen hierbij niet alleen individuele retail- en cultuurorganisaties in hun functie, maar dragen daarbij ook bij aan het oplossen van meer algemene problematiek van stedelijke kernen, zoals leegstand en verminderde leefbaarheid. We richten ons in het bijzonder op: 1) De rol van servicedesign in de orkestratie en vormgeven van een gezamenlijke bezoekersbeleving van cultuur- en retailorganisaties om de kwaliteit en leefbaarheid van stedelijke gebieden en de noodzakelijke innovatie te realiseren. 2) Verkennen en uitwerken van passende sleutelmethodologieën (KEM’s) om deze orkestratie en vormgeving en samen met stakeholders (in het bijzonder retail en cultuur) uit te voeren. 3) Opbouwen van het consortium voor een SIA-RAAK-aanvraag. Dit project levert een set van ontwerpeisen om servicedesignbureaus optimaal in staat te stellen de gezamenlijke orkestratie van de bezoekersbeleving van cultuur- en retailinstellingen vorm te geven. Tegelijkertijd brengt het project in kaart hoe een innovatie-ecosysteem waarin cultuur en retail samenwerken met servicedesignbureaus gestructureerd kan zijn. Dit project vormt de opmaat naar een SIA-RAAK-aanvraag met dezelfde of vergelijkbare stakeholders. De deliverables van het project zijn: 1. Visualisatie en rapport met overzicht van KEM’s en de toegevoegde waarde. 2. Visueel overzicht verschillende soorten stakeholders, belangen en posities in het winkelgebied voor een drietal binnenstedelijke gebieden. 3. Visualisatie van het orkestratie proces en de benodigde KEM’S 4. Toolkit cultuur/retail: methodieken en tools voor samenwerking cultuur en retail in winkelgebied 5. Verslag van kick-off en vraagarticulatieproces 6. Concept RAAK-aanvraag 7. Blog op platformdenieuwewinkelstraat.nl
