| Impacting Factors | Changing the usage of the area | Exposition of the tunneling area | Interference with surface waste | Interference with underground water | Waste waters | Increase in the traffic of the area | Dust emission | Toxic pollutants to air | Noise pollution | Land vibration | Fly rock | Materials existed in the waste dump | Waste discharge method | Domestic employment | Population control | Social and cultural development | Instability of the established spaces | Subsidence | Environmental arrangements | Light |
| Standard scenarios | 1* | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 5 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
| 1** | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5 | |
| Urban Utility Tunnel | 1 | 8 | 0 | 1 | 0 | 1 | 0 | 0 | 5 | 1 | 1 | 1 | 4 | -5 | 0 | 1 | 0 | 0 | 0 | 5 |
| 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 5 | |
| Eurasia Road Tunnel | 1.5 | 10 | 1 | 4 | 1 | 1 | 0 | 1 | 5 | 1 | 1 | 1 | 1 | -5 | 2 | 0 | 0 | 0 | -5 | 5 |
| 1.5 | 0 | 0 | 0 | 0 | 2 | 0 | 10 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | -2 | 5 | |
| Tsuen Wan Drainage Tunnel | 1 | 8 | 6 | 0 | 10 | 1 | 0 | 0 | 5 | 1 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | -3 | 5 |
| 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 5 | 0 | 0 | 0 | 0 | -2 | 5 |