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How Do Nature-Based Solutions’ Color Tones Influence People’s Emotional Reaction? An Assessment via Virtual and Augmented Reality in a Participatory Process

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  • Barbara Ester Adele Piga

    (Laboratorio di Simulazione Urbana Fausto Curti, Department of Architecture and Urban Studies (DAStU), Politecnico di Milano, 20133 Milan, Italy)

  • Gabriele Stancato

    (Laboratorio di Simulazione Urbana Fausto Curti, Department of Architecture and Urban Studies (DAStU), Politecnico di Milano, 20133 Milan, Italy)

  • Nicola Rainisio

    (Department of Cultural Heritage and Environment, University of Milan, 20122 Milan, Italy)

  • Marco Boffi

    (Department of Cultural Heritage and Environment, University of Milan, 20122 Milan, Italy)

Abstract

Simulations of urban transformations are an effective tool for engaging citizens and enhancing their understanding of urban design outcomes. Citizens’ involvement can positively contribute to foster resilience for mitigating the impact of climate change. Successful integration of Nature-Based Solutions (NBS) into the urban fabric enables both the mitigation of climate hazards and positive reactions of citizens. This paper presents two case studies in a southern district of Milan (Italy), investigating the emotional reaction of citizens to existing urban greenery and designed NBS. During the events, the participants explored in Virtual Reality (VR) ( n = 48) and Augmented Reality (AR) ( n = 63) (i) the district in its current condition and (ii) the design project of a future transformation including NBS. The environmental exploration and the data collection took place through the exp-EIA© method, integrated into the mobile app City Sense. The correlations between the color features of the viewed landscape and the emotional reaction of participants showed that weighted saturation of green and lime colors reduced the unpleasantness both in VR and AR, while the lime pixel area (%) reduced the unpleasantness only in VR. No effects were observed on the Arousal and Sleepiness factors. The effects show high reliability between VR and AR for some of the variables. Implications of the method and the benefits for urban simulation and participatory processes are discussed.

Suggested Citation

  • Barbara Ester Adele Piga & Gabriele Stancato & Nicola Rainisio & Marco Boffi, 2021. "How Do Nature-Based Solutions’ Color Tones Influence People’s Emotional Reaction? An Assessment via Virtual and Augmented Reality in a Participatory Process," Sustainability, MDPI, vol. 13(23), pages 1-25, December.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:23:p:13388-:d:694158
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    1. Barbara Ester Adele Piga & Nicola Rainisio & Gabriele Stancato & Marco Boffi, 2023. "Mapping the In-Motion Emotional Urban Experiences: An Evidence-Based Method," Sustainability, MDPI, vol. 15(10), pages 1-26, May.
    2. Julia Nerantzia Tzortzi & Laura Guaita & Aspassia Kouzoupi, 2022. "Sustainable Strategies for Urban and Landscape Regeneration Related to Agri-Cultural Heritage in the Urban-Periphery of South Milan," Sustainability, MDPI, vol. 14(11), pages 1-25, May.
    3. Michael W. Mehaffy & Nikos A. Salingaros & Alexandros A. Lavdas, 2023. "The “Modern” Campus: Case Study in (Un)Sustainable Urbanism," Sustainability, MDPI, vol. 15(23), pages 1-37, November.
    4. Israa H. Mahmoud & Eugenio Morello & Giuseppe Salvia & Emma Puerari, 2022. "Greening Cities, Shaping Cities: Pinpointing Nature-Based Solutions in Cities between Shared Governance and Citizen Participation," Sustainability, MDPI, vol. 14(12), pages 1-7, June.

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