Appendix 4.1
Powered Mechanical Equipment (PME) for Different Construction Tasks During Normal Daytime Working Hours -
Unmitigated Scenario
Sai Kung River
Site Clearence
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 2 117 70% 0 118
Total 119
Channel Construction
Excavation CH350-CH165
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Loader CNP 081 1 112 80% 0 111
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 1 117 70% 0 115
Vibratory Roller CNP 186 1 108 100% 0 108
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 3 85 100% 0 90
Total 119
Channel Construction
Excavation CH165-CH000
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Loader CNP 081 1 112 80% 0 111
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 1 117 70% 0 115
Vibratory Roller CNP 186 1 108 100% 0 108
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 3 85 100% 0 90
Total 119
Box Culvert and Bridge (1)
Piling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Power Rammer (petrol) CNP 169 1 108 100% 0 108
Total 108
Earthworks
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 1 117 70% 0 115
Vibratory Roller CNP 186 1 108 100% 0 108
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 2 85 100% 0 88
Total 118
Reinforcement Fixing / Concrete operations
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Backfilling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 1 117 70% 0 115
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Total 117
Max SWL for Box Culvert and Bridge 118
Backfilling / Channel lining CH420-CH000
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 1 117 70% 0 115
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Total 119
Note:
(1) For Box Culvert and Bridge, piling, earthworks, reinforcement fixing/concret operation and backfilling will not be carried out at the same time. Thus, the maximum SWL of these activties will be used for calculation.
Appendix 4.1
Powered Mechanical Equipment (PME) for Different Construction Tasks During Normal Daytime Working Hours -
Unmitigated Scenario
Pak Kong River
Site Clearence
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 2 117 70% 0 118
Total 119
Channel Construction
Excavation
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Loader CNP 081 1 112 80% 0 111
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 2 117 70% 0 118
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 3 85 100% 0 90
Total 120
Box Culvert (1)
Sheetpiling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Power Rammer (petrol) CNP169 1 108 100% 0 108
Total 108
Earthworks
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 2 117 70% 0 118
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 2 85 100% 0 88
Total 120
Reinforcement Fixing / Concrete operations
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 2 109 70% 0 110
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Backfilling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 2 117 70% 0 118
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Total 120
Max SWL for Box Culvert and Bridge 120
Retaining Wall
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 2 109 70% 0 110
Vibratory Poker CNP 170 3 113 70% 0 116
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 118
Backfilling / Channel lining
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 2 117 70% 0 118
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Total 121
Note:
(1) For Box Culvert and Bridge, piling, earthworks, reinforcement fixing/concret operation and backfilling will not be carried out at the same time. Thus, the maximum SWL of these activties will be used for calculation.
Appendix 4.1
Powered Mechanical Equipment (PME) for Different Construction Tasks During Normal Daytime Working Hours -
Unmitigated Scenario
Ho Chung Channel
Site Clearence
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 2 117 70% 0 118
Total 119
Channel Construction
Excavation
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Loader CNP 081 1 112 80% 0 111
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 1 117 70% 0 115
Vibratory Roller CNP 186 1 108 100% 0 108
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 3 85 100% 0 90
Total 119
Box Culvert and Bridge  CH320(1)
Piling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Piling, large diameter bored, reverse circulation drill CNP166 1 100 100% 0 100
Total 100
Earthworks
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 1 117 70% 0 115
Vibratory Roller CNP 186 1 108 100% 0 108
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 2 85 100% 0 88
Total 118
Reinforcement Fixing / Concrete operations
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Backfilling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 1 117 70% 0 115
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Total 117
Max SWL for Box Culvert and Bridge 118
Box Culvert and Bridge CH190(1)
Piling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Piling, large diameter bored, reverse circulation drill CNP166 1 100 100% 0 100
Total 100
Earthworks
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Excavator CNP 081 1 112 80% 0 111
Dump Truck CNP 067 1 117 70% 0 115
Vibratory Roller CNP 186 1 108 100% 0 108
Generator CNP 101 1 108 100% 0 108
Drainage Pump CNP 283 2 85 100% 0 88
Total 118
Reinforcement Fixing / Concrete operations
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Backfilling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 1 117 70% 0 115
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Total 117
Max SWL for Box Culvert and Bridge 118
Weir System
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 2 109 70% 0 110
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Retaining Wall CH650-CH330
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 2 109 70% 0 110
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Retaining Wall CH300-CH100
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 2 109 70% 0 110
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Floodwall
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 2 109 70% 0 110
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Backfilling / Channel lining
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Dump Truck CNP 067 1 117 70% 0 115
Excavator / Loader CNP 081 1 112 80% 0 111
Vibratory Roller CNP 186 1 108 100% 0 108
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Total 119
Pilling Work in Ho Chung CH20-CH189(2)
Piling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Piling, large diameter bored, reverse circulation drill CNP166 1 100 100% 0 100
Total 100
Reinforcement Fixing / Concrete operations
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Max SWL for Piling Work in Ho Chung 117
Pilling Work in Ho Chung CH350-CH450(2)
Piling
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Piling, large diameter bored, reverse circulation drill CNP166 1 100 100% 0 100
Total 100
Reinforcement Fixing / Concrete operations
Powered Mechanical Equipment TM Ref./ No. of Items SWL/Item On-time Barrier Total SWL
(PME) other Ref.   dB(A) % dB dB(A)
Crane CNP 048 1 112 70% 0 110
Concrete Lorry Mixer CNP 044 1 109 70% 0 107
Vibratory Poker CNP 170 2 113 70% 0 114
Bar Bender / Cutter CNP 021 1 90 100% 0 90
Total 117
Max SWL for Piling Work in Ho Chung 117
Note:
(1) For Box Culvert and Bridge, piling, earthworks, reinforcement fixing/concret operation and backfilling will not be carried out at the same time. Thus, the maximum SWL of these activties will be used for calculation.
(2) For piling working in Ho Chung Area, piling and reinforcement fixing/concret operation will not be carried out at the same time. Thus, the maximum SWL of these activties will be used for calculation.