LINK ROADS G AND L
Earthworks			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
(Excavation and Filling)			Air Compressor		CNP001	2	100	0	103
			Hand-held breaker		CNP023	2	108	0	111
			Bulldozer*		BS5228 C.3-65	2	110	0	113
			Excavator*		BS5228 C.3-97	2	106	0	109
			Dump Truck*		BS5228 C.9-29	2	109	0	112
			Lorry*		BS5228 C.9-27	2	105	0	108
							Total SWL		118
Substructure			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
			Excavator*		BS5228 C.3-97	1	106	0	106
			Concrete Lorry Mixer*		BS5228 C.6-35	2	100	0	103
			Concrete Pump*		BS5228 C.6-36	1	106	0	106
			Generator*		BS5228 C.7-62	1	100	0	100
			Air Compressor*		BS5228 C.7-25	2	98	0	101
			Poker Vibrator*		BS5228 C.6-32	2	100	0	103
			Piling		CNP166	1	100	0	100
			Lorry*		BS5228 C.9-27	2	105	0	108
			Mobile Crane*		BS5228 C.7-110	1	106	0	106
			Compactor		CNP050	1	105	0	105
							Total SWL		115
Superstructure			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
			Generator*		BS5228 C.7-62	2	100	0	103
			Air Compressor*		BS5228 C.7-25	2	98	0	101
			Concrete Pump*		BS5228 C.6-36	2	106	0	109
			Poker Vibrator*		BS5228 C.6-32	2	100	0	103
			Mobile Crane*		BS5228 C.7-110	2	106	0	109
			Lorry*		BS5228 C.9-27	2	105	0	108
							Total SWL		114
Road Pavement			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
			Road Roller		CNP185	1	108	0	108
			Asphalt Paver		CNP004	1	109	0	109
			Lorry		CNP141	1	112	0	112
			Compactor		CNP050	2	105	0	108
			Ballast Tamper		CNP029	2	105	0	108
							Total SWL		116
Notes
Note: B.A. donates barrier attentuation (dB(A))
*' denotes quiet alternative is used in accordance with BS5228, 1997
Route 9
Piling			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
			Bored piling rig		CNP166	1	100	0	100
			Dump truck*		BS5228 C.9-29	1	112	0	112
			Excavator*		BS5228 C.3-97	1	107	0	107
							Total SWL	0	113
Pile/Pile Cap/			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
Pier Formation			Concrete Lorry*		BS5228 C.6-35	1	104	0	104
			Concrete Pump*		BS5228 C.6-36	1	104	0	104
			Concrete Vibrator*		BS5228 C.6-29	1	108	0	108
			Bar Bender		CNP021	1	90	0	90
			Compressor*		BS5228 C.7-25	1	100	0	100
							Total SWL		111
Deck Construction			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
			Mobile Crane		CNP048	1	112	0
							Total SWL		112
Road Pavement			Noise Source		Ref. No.	No.	SWL/unit	B.A.	sub-SWL
			Road Roller		CNP185	1	108	0	108
			Asphalt Paver		CNP004	1	109	0	109
							Total SWL		112
*' denotes quiet alternative is used in accordance with BS5228, 1997