Table of contents
- Abstract
- Introduction
- Methodology
- 3.1 Study Design
- 3.2 Data Collection
- 3.3 Measurement Instruments
- Results
- 4.1 Quantitative Findings
- 4.2 Cross-City Comparison
- Discussion
- 5.1 Interpretation of Results
- 5.2 Limitations
- 5.3 Future Research Directions
- Conclusion
- References
- Appendices (if applicable)
- A. Survey Instruments
- B. NDVI Calculation Method
- C. City-wise Demographic Breakdown
Abstract
Urban green spaces have long been associated with various psychological benefits. This study investigates the relationship between access to green spaces and mental health outcomes across five metropolitan cities: New York, London, Tokyo, São Paulo, and Johannesburg. Using survey data (n = 2,500) and satellite-derived vegetation indices, we observed a statistically significant correlation between increased green space exposure and lower levels of anxiety and depression. Our findings support urban planning initiatives aimed at expanding green infrastructure as a low-cost intervention to improve public mental health.
1. Introduction
Rapid urbanization has led to decreased access to natural environments, which may have consequences for public mental health. Previous studies have highlighted the role of green spaces in reducing stress and promoting psychological well-being. However, cross-cultural and multi-city analyses remain limited. This paper aims to fill that gap by examining green space access and mental health across diverse urban contexts
2. Methodology
We used a mixed-method approach combining GIS data analysis with structured mental health surveys. Vegetation indices (NDVI) were calculated using Landsat imagery. Survey instruments included the General Anxiety Disorder-7 (GAD-7) and the Patient Health Questionnaire (PHQ-9). Participants were randomly selected within a 5-km radius of major urban parks in each city.
3. Results
Across all cities, participants with daily or weekly access to green spaces reported 17% lower average GAD-7 scores and 14% lower PHQ-9 scores compared to those without. The effect was most pronounced in New York and least in Tokyo, possibly due to cultural or design factors affecting park usage.
4. Discussion
Our findings align with literature emphasizing the restorative effects of nature. The variability in results suggests local context plays a significant role in how green spaces are utilized and perceived. Further research should explore sociocultural factors influencing engagement with green infrastructure.
5. Conclusion
Urban green spaces are a valuable public health resource. Policymakers should prioritize equitable access to natural environments in city planning to support mental well-being.
Keywords: green spaces, urban health, mental health, NDVI, cross-cultural study, public policy
Report Details
Digital Media: market data & analysis
| Pages | 99 Pages |
| Format | |
| Language | English |
| Released | July 2023 |
| Access | Download from this page |
| Price | $95 US |
CYBER ZEN 