As Virtual Reality (VR) technology becomes increasingly accessible, it offers powerful opportunities for controlled investigation of environmental and lighting effects on human behavior. VR enables precise manipulation of spatial and photometric variables, allowing researchers to evaluate human responses without the constraints of physical settings. Although prior studies show that well-calibrated VR can approximate real spaces for visual perception, evidence remains limited regarding its validity for assessing behavioral and cognitive outcomes, particularly among older adults. This study examines whether a VR-based lighting environment can serve as a reliable surrogate for a real-world setting when measuring perceptual appraisals and cognitive performance in aging populations.

Thirty-seven older adults were recruited, and thirty-two met the inclusion criteria and completed both experimental sessions. Using a within-subjects, counterbalanced design, participants performed a three-dimensional Trail Making Test–inspired task in a physical environment and in a matched virtual replica. The virtual scene was generated from a calibrated high dynamic range image of the real setting, tone-mapped, and rendered as an immersive 360-degree environment in Unreal Engine. Illuminance and correlated color temperature were closely matched across conditions using spectrometric and luminance measurements.

Subjective responses indicated comparable ratings of pleasantness and comfort in both environments. However, excitement, stress, and confusion were significantly higher in VR, suggesting elevated emotional arousal and cognitive load during immersive exposure. Despite these perceptual differences, no statistically significant differences were observed in completion times or error rates. Cognitive outcomes remained strongly associated with Mini-Mental State Examination scores across both settings, supporting the stability of the assessment. Overall, the findings demonstrate that a carefully calibrated VR environment can reproduce key lighting characteristics and support valid cognitive assessment in older adults, while highlighting the need to address spectral discrepancies and affective responses in future VR-based lighting research.

Tokyo is celebrated and known for its spatial efficiency and technological advancement, yet beneath this pragmatism is a pressing demographic challenge: over 29.1% of Japan’s population is aged 65 and older. As Japan becomes one of the world’s fastest-aging societies, its urban environments must increasingly support elderly well-being. Nowhere is this ethos more evident in Japan than Tokyo, the world’s largest city with densely populated metropolitan areas. Using a qualitative methodology emphasized in literature review, supported by site observation, case studies and logical argumentation, the study examines three urban conditions that contribute to senior isolation: high-density housing typologies, fragmented public spaces, and large-scale redevelopment. The research illustrates how design decisions prioritizing efficiency and commercial value will often overlook the urgent relational needs of seniors, resulting in diminished neighborhood familiarity, weakened social networks, and increased physical and emotional disconnection from the city around them. However, the study also examines design strategies that begin to foster inclusion, community, and autonomy for older adults. Drawing on contemporary planning practices, these positive ‘typologies’ include transit-oriented development and mobility access, micro-scale public realms, and intergenerational shared housing models. Furthermore, the authors propose several innovative interventions that create spaces for connection, such as memory-friendly wayfinding, care-integrated public spaces, and low commitment social infrastructure.

Ultimately, the paper argues that Tokyo’s response to senior isolation exposes core tensions between density and intimacy, growth and care, and efficiency and empathy. Drawing on literature by Gehl, Cullen, and Almazan and supported by studies from Matsumoto (2011), Drilling et al. (2025), and Raikhola & Kuroki (2009), this study reveals how spatial design of the city has the power to enable or withdraw social connection, instill or erode dignity, and reinforce or weaken agency in later life. The insights extend beyond Tokyo, offering a framework for global cities grappling with aging populations.

This paper investigates strategies for re-localizing food production to mitigate inequitable access to fresh produce through polyvalent structures that address overlapping urban needs. An analytical mapping framework identifies critical and viable zones for architectural intervention, addressing how existing hydroponic typologies overlook opportunities to operate within underutilized urban conditions shaped by environmental risk and infrastructural fragmentation.

Atlanta serves as the case study due to its legacies of infrastructural disinvestment, exclusionary zoning, and stormwater vulnerability. GIS-based mapping reveals compounded stress zones—where food insecurity, transit inaccessibility, socio-economic marginalization, and flood risk intersect—informing an adaptable framework for situating hydroponic interventions as tools for urban metabolic repair.

Applications are modular. They range from small-scale hubs on flood-prone residential infill lots to vertical farming units integrated into highway bridge extensions, activating areas rendered functionally or symbolically inert by water-related issues or infrastructural neglect. Architecturally, soil-less cultivation is repositioned from concealed industrial interiors to hybrid structures with a civic interface, reframing agriculture as a public and spatial encounter. Scalable modular systems support incremental development, gradually replacing extractive supply chains. By treating water and food production as community assets, the proposal offers agencies a replicable strategy to advance public health, climate resilience, and spatial equity in 21st-century cities.