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Classification table of comprehensive quality measurement values of street space.
| Hierarchical clustering results | Measure the comprehensive value interval | Quality grade |
|---|---|---|
| Class 1 | [0.0180, 0.1714] | Low quality |
| Class 2 | [0.1715, 0.2874] | Medium quality |
| Class 3 | [0.2875, 0.7280] | High quality |
