Table A2-4 Construction Plant Inventory (With the use of quiet plant, further reducing number of PME operating concurrently and use of temporary noise barrier)
Activity ID Activity Noise Source TM ref Plant Name Code Quiet Plant Ref (BS 5228) UNIT SWL/unit % on-time assumed % on-time correction 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 1 103 100 0 10 93 2E+09
Backhoe CNP 081 4 C3-35 1 106 100 0 5 101 1.26E+10
Excavator CNP 081 25 C3-97 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
    Total = 107 5.52E+10
   
Group 2: clearance  Bulldozer CNP 030 6 C9-2 1 104 100 0 5 99 7.94E+09
Crawler Crane  CNP 048 12 C7-110 1 106 100 0 5 101 1.26E+10
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Excavator CNP 081 25 C3-97 1 105 100 0 5 100 1E+10
    Total = 106 4.05E+10
   
102-P1 Construction of Kam Tin SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
102-P2 Construction of Sha Po SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
102-P3 Construction of Nam San Wai SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
102-P4 Construction of Shui Tsan Tin SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
102-P5 Construction of Ng Ka Tsuen SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
102-P6 Construction of Pang Ka Tsuen SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
102-P7 Construction of Leung Uk Tsuen Sewage SPS    
Group 1: foundation work Piling, large diameter bored, reverse circulation drill CNP 166   2 100 100 0 5 98 6.32E+09
Wheeled Excavator/Loader CNP 081 44 C3-80 1 106 100 0 5 101 1.26E+10
Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 5 100 1E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 10 90 1E+09
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
    Total = 106 4.45E+10
   
Group 2: superstructure Air Compressor (Air Flow > 30 cub. m/min) CNP 003 1 C7-44 1 103 100 0 10 93 2E+09
Handheld Breaker (mass > 35kg) CNP 026 33 C2-10 1 110 100 0 5 105 3.16E+10
Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 5 95 3.16E+09
Poker vibrator CNP 170 8 C6-32 1 100 100 0 5 95 3.16E+09
Bar bender and cutter CNP 021   1 90 100 0 10 80 1E+08
Lorry CNP 141 26 C9-27 1 105 100 0 5 100 1E+10
Mobile crane CNP 048 34 C7-110 1 106 100 0 5 101 1.26E+10
Saw, circular, wood CNP 201 62 C7-75 1 105 100 0 10 95 3.16E+09
    Total = 108 6.58E+10
   
103 Sewers and Rising Mains using Open Trench Method (including earthworks activities)    
Group 0: site preparation Piling, oscillator CNP 165 37 (a) 1 104 100 0 0 104 2.51E+10
Total = 104 2.51E+10
Group 1: road opening Handheld Breaker (mass > 35kg) CNP 048 33 C2-10 1 110 100 0 10 100 1E+10
    Total = 100 1E+10
   
Group 2: trench excavation Excavator for trenching CNP 081 64 C8-33 1 102 100 0 0 102 1.58E+10
    Total = 102 1.58E+10
 
Group 3: sewer laying Loader CNP 081 67 C8-15 1 103 100 0 0 103 2E+10
Medium size truck CNP 141 66 C9-19 1 102 100 0 0 102 1.58E+10
    Total = 106 3.58E+10
 
Group 4: earthworks Roller / Vibrating Roller CNP 186 39 C3-115 1 102 100 0 0 102 1.58E+10
    Total = 102 1.58E+10
   
Group 5: finishes Concrete lorry mixer CNP 044 7 C6-35 1 100 100 0 0 100 1E+10
Concrete Poker Vibrator CNP 170 8 C6-32 1 100 100 0 0 100 1E+10
Crawler Crane with Concrete Skip CNP 048 13 C7-106 1 99 100 0 0 99 7.94E+09
Medium size truck CNP 141 66 C9-19 1 102 100 0 0 102 1.58E+10
    Total = 106 4.38E+10
   
104 Sewers and Rising Mains using Pipe Jacking Method    
Group 1: site preparation Breaker, excavator mounted  CNP 026 5 C8-13 1 110 100 0 0 110 1E+11
    Total = 110 1E+11
Group 2: earthwork excavation Excavator with Multi Attachments CNP 081 4 C3-35 1 106 100 0 0 106 3.98E+10
    Total = 106 3.98E+10
Group 3: pipe jacking Concrete Mixer Truck CNP 044 7 C6-35 1 100 100 0 0 100 1E+10
Crawler Crane with Concrete Skip CNP 048 13 C7-106 1 99 100 0 0 99 7.94E+09
Dump Truck CNP 067 23 C9-27 1 105 100 0 0 105 3.16E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 0 100 1E+10
Water Pump CNP 281 0   1 88 100 0 0 88 6.31E+08
    Total = 108 6.02E+10
   
105 Road Pavement and Finishes Ballast Tamper CNP 029   1 105 100 0 0 105 3.16E+10
Compactor CNP 050   1 105 100 0 0 105 3.16E+10
Road Roller CNP 185 63 C8-27 1 104 100 0 0 104 2.51E+10
Lorry CNP 141 26 C9-27 1 105 100 0 0 105 3.16E+10
Asphalt Paver CNP 004 2 C8-24 1 101 100 0 0 101 1.26E+10
Loader CNP 081 44 C3-80 1 106 100 0 0 106 3.98E+10
Generator, silenced CNP 101 29 C7-62 1 100 100 0 0 100 1E+10
  Total = 113 1.82E+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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