Appendix A4.1	Powered Mechanical Equipment for the Different Construction Tasks
	(Mitigation 3 - Quieter Plant + Movable Noise Barrier +
	Reducing No. of PMEs close to NSRs)
(1d) Road D1for NSR 1
Powered Mechanical Equipment	TM Ref./	No. Items	SWL/Item	On-time	Barrier	Total SWL
(PME)	other Ref.		dB(A)	%	Reduction	dB(A)
Excavator loader, wheeled/tracked*	B	1	105.0	100.0%	5.0	100.0
Air Compressor	CNP 001	2	100.0	100.0%	10.0	93.0
Mobile Crane*	B	1	105.0	100.0%	5.0	100.0
Crane Lorry*	A	1	105.0	100.0%	5.0	100.0
Breaker, hand-held	CNP 024	2	108.0	100.0%	10.0	101.0
Grader*	A	1	110.0	100.0%	10.0	100.0
Asphalt Paver	CNP 004	1	109.0	100.0%	10.0	99.0
Road Rollers	CNP 186	1	108.0	100.0%	10.0	98.0
Water Pump	CNP 044	4	88.0	100.0%	0.0	94.0
Generator, super silenced*	CNP 103	2	95.0	100.0%	10.0	88.0
				Total		108.6
NOTE:
A - BS5228:Par 1:1997
B - Final EIA Report of "Feasibility Study for Pak Shek Kok Development Area.
* using quieter plants