Table A2-2 Construction Plant Inventory (With the use of Quiet Plant)
Activity ID	Activity	Noise Source	TM ref	Plant Name Code	Quiet Plant Ref (BS 5228)	UNIT	SWL/unit	Barrier Atten	sub-SWL
101	General Site Clearance / Demolition Works
	Group 1: demolition	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Backhoe	CNP 081	4	C3-35	1	106	0	106	3.98E+10
		Excavator	CNP 081	25	C3-97	1	105	0	105	3.16E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Breaker, excavator mounted	CNP 026	5	C8-13	2	110	0	113	2E+11
								Total =	114	2.81E+11
	Group 2: clearance	Bulldozer	CNP 030	6	C9-2	1	104	0	104	2.51E+10
		Crawler Crane	CNP 048	12	C7-110	1	106	0	106	3.98E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Excavator	CNP 081	25	C3-97	1	105	0	105	3.16E+10
								Total =	112	1.6E+11
102-P1	Construction of Kam Tin SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
102-P2	Construction of Sha Po SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
102-P3	Construction of Nam San Wai SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
102-P4	Construction of Shui Tsan Tin SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
102-P5	Construction of Ng Ka Tsuen SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
102-P6	Construction of Pang Ka Tsuen SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
102-P7	Construction of Leung Uk Tsuen Sewage SPS
	Group 1: foundation work	Piling, large diameter bored, reverse circulation drill	CNP 166			2	100	0	103	2E+10
		Wheeled Excavator/Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
								Total =	113	1.93E+11
	Group 2: superstructure	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Handheld Breaker (mass > 35kg)	CNP 026	33	C2-10	1	110	0	110	1E+11
		Concrete lorry mixer	CNP 044	7	C6-35	1	100	0	100	1E+10
		Poker vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Bar bender and cutter	CNP 021			1	90	0	90	1E+09
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Mobile crane	CNP 048	34	C7-110	1	106	0	106	3.98E+10
		Saw, circular, wood	CNP 201	62	C7-75	1	105	0	105	3.16E+10
								Total =	114	2.44E+11
103	Sewers and Rising Mains using Open Trench Method (including earthworks activities)
	Group 1: site preparation	Piling, oscillator	CNP 165	37	(a)	1	104	0	104	2.51E+10
		Excavator with Multi Attachments	CNP 081	25	C3-97	1	105	0	105	3.16E+10
		Breaker, excavator mounted	CNP 026	5	C8-13	1	110	0	110	1E+11
								Total =	112	1.57E+11
	Group 2: trench excavation and earthworks	Excavator	CNP 081	4	C3-35	1	106	0	106	3.98E+10
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Roller / Vibrating Roller	CNP 186	39	C3-115	1	102	0	102	1.58E+10
								Total =	111	1.19E+11
	Group 3: finishes	Concrete Mixer Truck	CNP 044	7	C6-35	1	100	0	100	1E+10
		Concrete Poker Vibrator	CNP 170	8	C6-32	1	100	0	100	1E+10
		Crawler Crane with Concrete Skip	CNP 048	13	C7-106	1	99	0	99	7.94E+09
		Flat Bed Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
								Total =	108	6.96E+10
104	Sewers and Rising Mains using Pipe Jacking Method
	Group 1: site preparation	Air Compressor (Air Flow > 30 cub. m/min)	CNP 003	1	C7-44	1	103	0	103	2E+10
		Excavator with Multi Attachments	CNP 081	4	C3-35	1	106	0	106	3.98E+10
		Breaker, excavator mounted	CNP 026	5	C8-13	1	110	0	110	1E+11
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
								Total =	112	1.7E+11
	Group 2: pipe jacking	Concrete Mixer Truck	CNP 044	7	C6-35	1	100	0	100	1E+10
		Crawler Crane with Concrete Skip	CNP 048	13	C7-106	1	99	0	99	7.94E+09
		Dump Truck	CNP 067	23	C9-27	2	105	0	108	6.32E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
		Water Pump	CNP 281			2	88	0	91	1.26E+09
								Total =	110	9.25E+10
105	Road Pavement and Finishes	Ballast Tamper	CNP 029			2	105	0	108	6.32E+10
		Compactor	CNP 050			1	105	0	105	3.16E+10
		Road Roller	CNP 185	63	C8-27	1	104	0	104	2.51E+10
		Lorry	CNP 141	26	C9-27	1	105	0	105	3.16E+10
		Asphalt Paver	CNP 004	2	C8-24	1	101	0	101	1.26E+10
		Loader	CNP 081	44	C3-80	1	106	0	106	3.98E+10
		Generator, silenced	CNP 101	29	C7-62	1	100	0	100	1E+10
								Total =	113	2.14E+11
107a	Piling - Construction of SPS / Sewer and Rising Mains	Generator, silenced	CNP 101			1	108	0	108	6.31E+10
								Total =	108	6.31E+10
107b	Piling - Construction of SPS / Sewer and Rising Mains	Hydraulic Hammer (double acting ) driving steel pile	PP-TM			1	129	0	129	7.94E+12
								Total =	129	7.94E+12
Correction for No. of PME = 10 log (no. of PME)
Sub_SWL1 = SWL (CNP/BS5228) + Correction for No. of PME -  Barrier Corection
Total  Sub_SWL = 10 log( 10^(Sub_SWL1/10) +10^(Sub_SWL2/10) +10^(Sub_SWL3/10) +10^(Sub_SWLn/10))
(a): based on previous project experience
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