| Appendix 4.4 Sample Calculation for Construction Noise | |||||
| Predicted Construction Noise Level at N3H during April 2004 (Unmitigated) | |||||
| Construction Activities I.D. | SWL | Distance from Noise Source, m | Distance Attentuation, dB(A) | Noise Level from Single Activity at NSR, dB(A) | Construction Activity |
| 101 | 119 | -- | -- | -- | |
| 201 | 119 | -- | -- | -- | |
| 301 | 119 | -- | -- | -- | |
| 302 | 118 | -- | -- | -- | Yes |
| 303 | 118 | -- | -- | -- | Yes |
| 304 | 120 | -- | -- | -- | Yes |
| 305 | 120 | -- | -- | -- | |
| 306 | 120 | -- | -- | -- | |
| 307 | 124 | -- | -- | -- | |
| 401 | 116 | -- | -- | -- | |
| 402 | 115 | -- | -- | -- | |
| 403 | 119 | -- | -- | -- | Yes |
| 404 | 121 | -- | -- | -- | |
| 405 | 121 | -- | -- | -- | |
| 406 | 123 | -- | -- | -- | |
| 407 | 124 | -- | -- | -- | |
| 408 | 124 | -- | -- | -- | |
| 409 | 124 | -- | -- | -- | |
| 501 | 116 | -- | -- | -- | |
| 502 | 115 | -- | -- | -- | |
| 503 | 121 | -- | -- | -- | Yes |
| 504 | 121 | -- | -- | -- | |
| 505 | 123 | -- | -- | -- | |
| 506 | 124 | -- | -- | -- | |
| 507 | 124 | -- | -- | -- | |
| 508 | 124 | -- | -- | -- | |
| 601 | 116 | -- | -- | -- | |
| 602 | 115 | -- | -- | -- | |
| 603 | 121 | -- | -- | -- | |
| 604 | 121 | -- | -- | -- | |
| 605 | 123 | -- | -- | -- | |
| 606 | 124 | -- | -- | -- | |
| 607 | 124 | -- | -- | -- | |
| 608 | 124 | -- | -- | -- | |
| 701 | 119 | 90 | 47.1 | 74.9 | |
| 702 | 119 | 80 | 46.1 | 75.9 | |
| 703 | 124 | 80 | 46.1 | 80.9 | |
| 704 | 124 | 80 | 46.1 | 80.9 | Yes |
| 705 | 124 | 80 | 46.1 | 80.9 | Yes |
| 706 | 123 | 80 | 46.1 | 79.9 | |
| 707 | 124 | 80 | 46.1 | 80.9 | |
| 708 | 124 | 80 | 46.1 | 80.9 | |
| 709 | 124 | 80 | 46.1 | 80.9 | |
| 801 | 124 | -- | -- | -- | |
| 802 | 123 | -- | -- | -- | |
| 803 | 123 | -- | -- | -- | |
| 804 | 121 | -- | -- | -- | |
| 805 | 124 | -- | -- | -- | |
| 806 | 124 | -- | -- | -- | |
| 807 | 124 | -- | -- | -- | |
| 901 | 124 | -- | -- | -- | |
| 902 | 123 | -- | -- | -- | |
| 903 | 123 | -- | -- | -- | |
| 904 | 121 | -- | -- | -- | |
| 905 | 124 | -- | -- | -- | |
| 906 | 124 | -- | -- | -- | |
| 907 | 124 | -- | -- | -- | |
| 1001 | 124 | -- | -- | -- | |
| 1002 | 120 | -- | -- | -- | |
| 1003 | 123 | -- | -- | -- | |
| 1004 | 123 | -- | -- | -- | |
| 1005 | 121 | -- | -- | -- | |
| 1006 | 124 | -- | -- | -- | |
| 1007 | 124 | -- | -- | -- | |
| Cumulative Noise Level of Various Construction Activities | 83.9 | ||||
| Note: | |||||
| -- The noise level at this particular NSR is neglibile since it is more than 300m from the construction activity. | |||||