| Evaluation factor | Improvement of planting | Improvement of paving | Improvement of installation | Harmony with landscape |
|---|---|---|---|---|
| Improvement of planting | 1.00 | |||
| Improvement of paving | .869 | 1.00 | ||
| Improvement of installation | .806 | .824 | 1.00 | |
| Harmony with landscape | .758 | .868 | .894 | 1.00 |