Uncovering The Impact Of Grey Cities

In the first sprint, our primary objective was to clearly define the scope of grey facades and their impact. By narrowing down the focus to common materials like brick and concrete, we were able to identify their unique properties and how they influence urban environments. A particular focus was placed on understanding their role in heat retention and poor air quality which effect our mental well being, as these are pressing issues in cities today.

To thoroughly investigate the impact of grey facades, our team employed a combination of desk research and fieldwork.

We began by reviewing over 50 academic papers to build a solid understanding of the issue. Next, we prepared detailed interview scripts and conducted interviews with both experts and everyday users, including homeowners. Through brainstorming sessions and empathy mapping, we created a stakeholder map to identify key players and their perspectives by making different personas.

These methods allowed us to gather both quantitative and qualitative data to support our findings.

After reviewing over 50 research papers and analyzing key findings, the team developed a holistic understanding of the general impacts of grey facades. These impacts include:

• Heat waves – Grey facades, especially concrete, trap heat, contributing to the urban heat island effect.
  
• Health (Physical/Mental) – Long-term exposure to grey environments can negatively affect mental well-being and reduce physical activity.
  

• CO2 Emissions – Grey facades contribute to increased carbon dioxide levels, as they lack the natural carbon-capturing properties that green spaces provide.

• Biodiversity – Grey facades do not support plant or insect life, leading to a reduction in urban biodiversity, which is critical for ecosystem balance.
  

The key interviews allowed us to refine our focus on specific materials. Concrete and brick facades emerged as the number one priority due to their prevalence and significant impact on heat retention, energy consumption, and their lack of support for biodiversity.

1. Develop a VR experiment to simulate environments with grey facades and capture real-time user responses.
2. Create an initial data visualization dashboard as a proof of concept to present the findings in an accessible way.
3. Collect feedback to guide the refinement of our tools and methods.

To meet these goals, we combined immersive technology and user research:

• VR Experiment: We designed VR setups displaying different urban environments, including grey and green facades, to observe stress, comfort, and aesthetic responses. Our experiment engaged 15 participants across multiple sessions, and we collected responses through surveys.
• Survey Questions: We designed specific survey questions to gauge aesthetic appeal, stress, and perceived safety. This included self-reports on mood and stress pre- and post-exposure to each environment.
• Interviews: We interviewed key stakeholders such as a social housing developer and a product developer in sustainable construction to understand broader industry perspectives on grey and green facades.
• Desk Research: Over 20 new articles were reviewed to align our survey criteria with measurable impacts, specifically focusing on stress, pleasant feelings, and aesthetics.

1. VR Experiment Findings: Participants reported higher stress levels and lower comfort in grey facade environments, while green environments were rated as significantly more aesthetically pleasing and safe.
2. Dashboard Prototype: We developed a first sketch on paper of the dashboard to visualize survey data, focusing on simplicity and engagement. This initial version aims to effectively communicate our findings to stakeholders.
3. User Feedback: Key stakeholders highlighted the importance of making data accessible and engaging, particularly for audiences like municipalities and corporate decision-makers who would benefit from concrete insights on the impacts of urban facades.

• Develop a low-fidelity prototype for the VR findings dashboard with three core features for initial feedback.
• Enhance the VR experiment by improving survey questions and adding demographic data for deeper insights.
• Prepare a clickable prototype to visualize research findings and ensure the dashboard is easy to navigate and interactive.

1. Co-design sessions and peer feedback for the dashboard.
2. Academic research and expert interviews to refine survey questions.
3. Testing and incorporating feedback into the VR experiment.

• Clickable dashboard prototype with easy navigation and interactive data visualization.
• Updated VR experiment with scientifically accurate survey questions measuring wellbeing, safety, and aesthetics.
• Collected demographic data to better understand user perceptions.

• Enhance the dashboard based on user and expert feedback.
• Increase data points to better represent diverse demographics.
• Conduct usability testing with participants to validate design decisions.

• User Testing: Conducted with 5 DSS participants using test cards.
• Impact-Feasibility Matrix: Prioritized feedback implementation.
• Survey Data Collection: Gathered demographics and perceived green space data.

• Participants: Increased from 10 to 35, now covering all age segments.
• Critical Feedback: 15 key comments were implemented.
• Dashboard Improvements: Improved clarity, usability, and data visualization based on feedback.

• Finalize the dashboard by addressing all outstanding feedback.
• Ensure the dashboard is intuitive, visually appealing, and ready for the showcase.
• Prepare interactive and engaging elements for the showcase, including VR and a fun game.

• User Testing: Conducted remotely with a focus on demographic clarity and interactive features.
• Feedback Rounds: Iterated through three rounds of feedback with experts, DSS team, and peers.
• Showcase Preparation: Developed VR experiences, video projections, and interactive dashboard demos.

• Final Prototype: Improved with arrows for facade types, clearer demographic instructions, and enhanced visual distinctions.
• Feedback Integration: Addressed specific comments like adding building-related information on the left and survey results on the right.
• Showcase Elements: Created a VR experience, interactive prototype, and an engaging fun game.