Table 2a Noise Mitigation Measures to be Implemented Before Commencement of Operation of the Project
Mitigation Measure	Location	Type	Approx. Length	Chainage No.
Barrier DBL1M1	Section of DBL mainline Southbound (SB)	5m vertical barrier	342m	2+500~2+850
Barrier DBL1M2	Section of DBL mainline (SB)	3m vertical barrier	419m	2+850~3+300
Barrier DBL4M1	Section of DBL mainline (NB) near HSK Interchange	3m vertical barrier	629m	4+000~4+600
Barrier DBL5M1	Central divider at section of DBL mainline from HSK Interchange to Ramp K	5m vertical barrier	108m	4~000+4~100
Cantilever Barrier DBL6M1	Section of DBL mainline (SB) near HSK Interchange	5.5m+2.2m cantilever barrier	93m	4+000~4+100
Barrier DBL6M2	Section of DBL mainline (SB) near HSK Interchange	3m vertical barrier	199m	4+400~4+600
Barrier DBL7	Mainline of DBL (SB) connecting to Ramp K	3m vertical barrier	429m	4+600~5+000
Cantilever Barrier DBL8M1	Ramp B of Lam Tei Interchange connecting DBL mainline (NB)	Cantilever barrier (5.5m vertical plus 2.2m extension)	278m	4+766~1+377
Barrier DBL12	Mainline of DBL (NB) in the section at Lam Tei Interchange	3m vertical barrier	90m	4+634~4+767
Barrier DBL13M1	Mainline of DBL (SB) in the section connecting Ramp H of Lam Tei Interchange	3m vertical barrier	90m	5+000~5+100
Barrier LT1M1	Ramp C of Lam Tei Interchange	4m vertical barrier	472m	0+300~0+815
Barrier LT3M1	Ramp D of Lam Tei Interchange	5m vertical barrier	157m	1+165~1+387
Cantilever Barrier LT4	Ramp A of Lam Tei Interchange	Cantilever barrier (5.5m vertical plus 2.2m extension)	366m	0+250~0+085
Barrier LT5M2	Ramp A of Lam Tei Interchange	5m vertical barrier	150m	0+200~0+400
Barrier LT8	Ramp H of Lam Tei Interchange	3m vertical barrier	200m	0+492~0+679
Cantilever Barrier LT11	Ramp D of Lam Tei Interchange	Cantilever barrier (5.5m vertical plus 2.5m extension)	154m	0+250~0+100
Barrier LT12M1	Ramp B of Lam Tei Interchange	3m vertical barrier	181m	0+800~1+000
Barrier YLH1	Ramp C of Lam Tei Interchange	5m vertical barrier	388m	0+815~1+200
Barrier YLH2BM1	Yuen Long Highway (EB) – north of Lam Tei Interchange	5m vertical barrier	283m	1+200~1+483
Barrier YLH4M1	Yuen Long Highway (WB) – north of Lam Tei Interchange	6m vertical barrier	55m	3+350~3+400
Cantilever Barrier YLH5	Yuen Long Highway (WB) – north of Lam Tei Interchange	Cantilever barrier (5.5m vertical plus 2.5m extension)	250m	0+100~3+350
Barrier YLH6	Yuen Long Highway (WB) – north of Lam Tei Interchange	3m vertical barrier	37m	2+800~2+850
Barrier YLH7	Yuen Long Highway (WB) – north of Lam Tei Interchange	4m vertical barrier	57m	2+750~2+800
Barrier YLH8	Yuen Long Highway (WB) – section near Lam Tei Interchange	6m vertical barrier	552m	2+150~2+700
Cantilever Barrier YLH9	Yuen Long Highway (WB) – south of Lam Tei Interchange	Cantilever barrier (5.5m vertical plus 2.5m extension)	404m	0+245~0+679
Barrier YLH10	Yuen Long Highway (WB) – south of Lam Tei Interchange	6m vertical barrier	50m	0+200~0+245
Barrier YLH11	Yuen Long Highway (EB) – south of Lam Tei Interchange	3m vertical barrier	160m	0+108~0+245
Barrier YLH12	Yuen Long Highway (EB) – south of Lam Tei Interchange	5m vertical barrier	272m	1+424~1+700
Cantilever Barrier YLH13	Yuen Long Highway (EB) – south of Lam Tei Interchange	Cantilever barrier (5.5m vertical plus 2.5m extension)	245m	1+700~0+0805
Barrier YLH15	Central divider of Yuen Long Highway – south of Lam Tei Interchange	5m vertical barrier	448m	1+350~1+800
Barrier YLH16	Yuen Long Highway (WB) – north of Lam Tei Interchange	5m vertical barrier	37m	2+700~2+750
Barrier YLH17	Yuen Long Highway (WB) – south of Lam Tei Interchange	4m vertical barrier	201m	0+922~1+147
Barrier YLH18	Slip road of Yuen Long Highway (WB) – south of Lam Tei Interchange	4m vertical barrier	107m	0+096~0+200
Cantilever Barrier YLH19	Slip road of Yuen Long Highway (EB) – south of Lam Tei Interchange	Cantilever barrier (5.5m vertical plus 2.5m extension)	94m	0+014~0+108
Barrier YLH20	Yuen Long Highway (EB) – south of Lam Tei Interchange	5m vertical barrier	92m	1+200~1+294
Barrier YLH21	Yuen Long Highway (WB) – south of Lam Tei Interchange	5m vertical barrier	85m	1+200~1+300