0.0 – 0.30: Very Low-Quality Green Space
In these areas, there is minimal to no effective green infrastructure. Ecosystem services such as air purification, flood mitigation, and biodiversity support are extremely limited, and residents receive little benefit in terms of well-being.
0.30 – 0.55: Low-Quality Green Space
These areas provide some level of green cover but remain below the threshold needed to substantially support well-being. The quantity or connectivity of the green space is insufficient, and key ecosystem services are only marginally delivered. Improvements are needed to meet basic quality standards.
0.55 – 0.70: Moderate-Quality Green Space
Once the threshold of 0.55 is reached, green space begins to contribute meaningfully to community well-being. At this level, the green infrastructure supports essential ecosystem services, although there is still room for enhancement (e.g., increased diversity, connectivity, or area) to maximise benefits.
0.70 – 0.90: Good-Quality Green Space
In this range, the green space is well-developed and provides robust ecosystem services. It offers noticeable benefits for air quality, temperature regulation, and recreational opportunities. However, while the benefits are significant, they might not yet be optimal.
0.90 – 1.00: High-Quality Green Space
Areas in this range achieve near-optimal green space performance. They offer a rich array of ecosystem services, promoting biodiversity, improved air quality, and enhanced well-being. These spaces serve as benchmarks for urban sustainability.