Report

4 Noise

4.1 Legislation, Standards and Guidelines

4.1.1 General

4.1.1.1 The relevant legislation and associated guidance applicable to this Study for the assessment of noise impact include:

· Environmental Impact Assessment Ordinance (EIAO) (Cap. 499), including Technical Memorandum on Environmental Impact Assessment Process (TM-EIAO), Annex 5 and Annex 13;

· Noise Control Ordinance (NCO) (Cap. 400);

· Technical Memorandum (TM) on Noise from Construction Work other than Percussive Piling (TM-GW);

· TM on Noise from Percussive Piling (TM-PP);

· TM on Noise on Construction Work in Designated Areas (TM-DA); and

· TM on Noise from Places other than Domestic Premises, Public Places or Construction Sites (TM-Places).

4.1.2 Construction Noise

Construction Noise during Normal Hours

4.1.2.1 NCO provides the statutory framework for noise control in Hong Kong. Assessment procedures and standards are set out in the respective TM promulgated under NCO.

4.1.2.2 To ensure a better environment, the TM-EIAO promulgated under the EIA Ordinance has imposed more stringent criteria. For construction, there is no statutory limit on daytime construction noise under NCO and related TMs. There is statutory control on construction noise during daytime on general holidays (including Sundays). Nevertheless, the TM-EIAO stipulates criteria of 65-75dB(A) for daytime construction activities, as shown in Table 4.1.

Table 4.1 Noise standards for daytime construction activities

Uses	Noise Standards^[^{1], [2]}, L_eq (30 mins) dB(A)
Uses	0700 – 1900 hours on any day not being a Sunday or general holiday
All domestic premises including temporary housing accommodation	75
Hotel and hostels	75
Educational institutions including kindergartens, nurseries and all others where unaided voice communication is required	70 65 (During examination)

Notes:

[1] The above standards apply to uses that rely on opened windows for ventilation.

[2] The above standards should be viewed as the maximum permissible noise levels assessed at 1m from the external facade.

Construction Noise during Restricted Hours

4.1.2.3 NCO also provides statutory control on general construction works during restricted hours (i.e. 1900 to 0700 hours (of the next day) from Monday to Saturday and at any time on Sundays or public holidays). The use of Powered Mechanical Equipment (PME) for construction works during restricted hours would require a Construction Noise Permit (CNP). The TM-GW details the procedures adopted by Environmental Protection Department (EPD) for assessing such application. The granting of a CNP is subject to conditions stated in the CNP and it may be revoked at any time for failure to comply with the permit conditions.

4.1.2.4 In addition to the general controls on the use of PME during restricted hours, the use of Specified Powered Mechanical Equipment (SPME) and the undertaking of Prescribed Construction Work (PCW) during the restricted hours in a designated area are controlled by the TM-DA. Construction plant or equipment classified as SPME under the TM-DA includes hand-held breakers, bulldozers, concrete lorry mixers, dump trucks and vibratory pokers. The PCW includes the erection or dismantling of formwork or scaffolding, hammering, loading, unloading or handling of rubble, wooden boards, steel bars, wood or scaffolding material, and the disposal of rubble through plastic chutes.

4.1.2.5 The TM-DA details the procedures that should generally be adopted by the Noise Control Authority for assessing the use of SPME during restricted hours and for determining whether a CNP would be issued.

4.1.2.6 Maximum noise levels from construction activities during restricted hours at affected Noise Sensitive Receivers (NSRs) are controlled under the TMs and shall not exceed the specified Acceptable Noise Levels (ANLs). These ANLs are stipulated in accordance with the Area Sensitivity Ratings (ASRs) established for the NSRs. The ANLs for construction works in Designated Areas are more stringent than those given in the TM-GW and summarised in Table 4.2.

Table 4.2 ANLs for construction during restricted hours

Time Period	ANL, dB(A)
Time Period	ASR A	ASR B	ASR C
All weekdays during the evening (1900 to 2300 hours), and general holidays (including Sundays) during the day-time and evening (0700 to 2300 hours)	60 (45)	65 (50)	70 (55)
All days during the night-time (2300 to 0700 hours)	45 (30)	50 (35)	55 (40)

Note:

[1] Figures in brackets are ANLs for SPME construction work in designated areas.

4.1.2.7 As defined in Noise Control Designated Area Plan, the assessment area of the Project is not within the Designated Area.

4.1.2.8 Despite any description made in this EIA, there is no guarantee that a CNP will be issued for the project construction. The Noise Control Authority will consider a well-justified CNP application, once filed, for construction works within restricted hours as guided by the relevant TMs issued under the NCO. The Noise Control Authority will take into account contemporary conditions / situations of adjoining land uses and any previous complaints against construction activities at the Project site before making a decision in granting a CNP. Nothing in this EIA report shall bind the Noise Control Authority in making a decision. If a CNP is to be issued, the Noise Control Authority shall include in it any conditions demand. Failure to comply with any such conditions will lead to cancellation of the CNP and prosecution under the NCO. According to the proposed construction methodology for the Project, construction during night-time period and other time periods under restricted hours are not anticipated.

Percussive Piling

4.1.2.9 Under the TM-PP, CNPs are required for carrying out of percussive piling during 0700 - 1900 hours of the next day on normal weekdays, and carrying out of percussive piling is generally prohibited during general holidays including Sundays. This TM specifies the permitted hours and other conditions for percussive piling. Table 4.3 lists the acceptable percussive piling noise levels for various types of NSR.

Table 4.3 ANLs for percussive piling

NSR Window Type or Means of Ventilation	ANL, dB(A)
(i) NSR (or part of NSR) with no window or other opening	100
(ii) NSR with central air conditioning system	90
(iii) NSR with windows or other openings but without central air conditioning system	85

4.1.2.10 Depending on the numbers and types of piling machines and pile types, and the separation from NSRs, percussive piling would be restricted to 12, 5 or 3 hours respectively during 07:00 - 1900 hours on normal weekdays. For NSRs that are particularly sensitive to noise, such as hospitals, medical clinics, educational institutions and courts of law, a further reduction of 10dB(A) shall be applied to the above ANLs. According to the proposed construction methodology for the Project, percussive piling is not anticipated.

4.1.3 Operational Noise

4.1.3.1 The TM-EIAO (Annex 5 of TM) has stipulated the noise standards for various noise sources as shown in Table 4.4. It should, however, be noted that the following noise criteria are only applicable to uses that rely on opened windows for ventilation.

Table 4.4 Noise standards for operational phase

Common Uses	Noise Standards^[^{1], [2]}
Common Uses	Aircraft Noise (Noise Exposure Forecast: NEF)	Helicopter Noise L_max dB(A) 0700-1900 hours	Road Traffic Noise L₁₀ _(1hour) dB(A)	Rail Noise	Fixed Noise Sources
All domestic premises including temporary housing accommodation	25	85	70	(a) The appropriate ANLs shown in Table 2 of the Technical Memorandum for the Assessment of Noise from Places Other than Domestic Premises, Public Places or Construction Sites and (b) L_max(2300-0700 hours) = 85dB(A)	(a) 5dB(A) below the appropriate ANLs shown in Table 2 of the Technical Memorandum for the Assessment of Noise from Places Other than Domestic Premises, Public Places or Construction Sites, or (b) the prevailing background noise levels (For quiet areas with level 5 dB(A) below the ANL)
Hotel and hostels	25	85	70
Offices	30	90	70
Educational institutions including kindergartens, nurseries and all others where unaided voice communication is required	25	85	65
Places of public Worship and courts of law	25	85	65
Hospitals, clinics, convalescences and homes for the aged, diagnostic rooms, wards	25	85	55

Notes:

[1] The above standards apply to uses that rely on opened windows for ventilation.

[2] The above standards shall be viewed as the maximum permissible noise levels assessed at 1m from the external facade.

4.1.3.2 As mentioned in Section 2, the main objective of the Project is to enhance the safety and accessibility of the pubic using the pier. There is neither planned increase in the existing Kaito services nor alteration of their routing. Therefore, the Project will not introduce any additional operational noise sources in Table 4.4.

4.2 Description of the Environment

4.2.1 Existing Environment

4.2.1.1 As discussed in Section 2, the works area of the Project is located at north-eastern coast of Tung Ping Chau facing towards Ping Chau Hoi. It overlaps mostly with Tung Ping Chau Marine Park and is adjacent to the Ping Chau Site of Special Scientific Interest (SSSI). Plover Cove (Extension) Country Park is located at more than 70m to the west of the Project. Part of the works area is currently occupied by Tung Ping Chau Public Pier of approximately 97m long and 5.5m wide which would be subject to pier improvement works under the Project. The adjacent area of the Project is generally rural in character with Tai Tong, Lei Uk, Chan Uk, Sha Tau and Lam Uk located to more than 210m away. According to the Draft Ping Chau Outline Zoning Plan (OZP) No. S/NE-PC/1, the existing Tung Ping Chau Public Pier encroaching the works area is located within an area zoned as “Other Specified Uses” annotated “Pier” (“OU(Pier)”). The proposed new pier falls outside the boundary of the OZP. The areas in proximity to the existing pier are currently zoned as “Coastal Protection Area” (“CPA”), “Green Belt” (“GB”) and “Village Type Development” (“V”). The existing environment is relatively tranquil and quiet. No major noise sources are identified during the site visit.

4.3 Assessment Area and Noise Sensitive Receivers

4.3.1 Assessment Area

4.3.1.1 According to Clause 2.2.1(a) of Appendix C of the EIA Study Brief (ESB-306/2017), the assessment area for noise impact should generally include the area within 300m from the boundary of the Project and the works of the Project. A 300m assessment area from the works area of the Project has been adopted. Figure 4.1 shows the extent of the assessment area and the location of the Project.

4.3.2 Noise Sensitive Receivers

4.3.2.1 With reference to Annex 13 of the TM-EIAO, NSRs shall include residential uses (all domestic premises including temporary housing), institutional uses (educational institutions including kindergartens and nurseries), hospitals, medical clinics, homes for the aged, convalescent homes, places of public worship, libraries, courts of law, performing arts centres, auditoria and amphitheatres, country parks and others.

4.3.2.2 All NSRs within 300m in the assessment area from the boundary of the Project and the works of the Project have been identified with the representative NSRs selected as assessment points for assessment. These NSRs should include both the existing and committed and planned sensitive developments (if any) during both construction and operational phases.

4.3.2.3 The representative existing NSRs are identified by means of reviewing topographic maps, aerial photos, land status plans, relevant Outline Zoning Plans (OZP) (Draft Ping Chau OZP No. S/NE-PC/1), Development Permission Area Plans, Outline Development Plans, Layout Plans and other relevant published land use plans, including plans and drawings published by Lands Department and any land use and development applications approved by the Town Planning Board, and supplemented by site inspections. No committed/ planned NSR was identified within the 300m assessment area from the boundary of the Project and the works of the Project. Photos of the representative existing NSRs are shown in Appendix 4.1.

4.3.2.4 The representative NSRs identified are summarised in Table 4.5 and their locations are shown in Figure 4.1.

Table 4.5 Identified representative NSRs

NSR	Description	Uses ^[1]	No. of Floors	Approx. Separation Distance
TPC-N1	Tai Tong	R	1-3	210m
TPC-N2	Plover Cove (Extension) Country Park	CP ^[2]	Not Applicable	70m

Notes:

[1] R – Residential; CP – Country Park

[2] The specific use of the area in Country Park for TPC-N2 is hiking trail.

4.4 Construction Noise Impact Assessment

4.4.1 Construction Noise Impact Assessment Methodology

4.4.1.1 Construction noise assessment was conducted based on the following procedures:

· Determine the assessment area which includes an area within 300m from the site boundary of the Project and associated works;

· Identify and locate all NSRs that may be affected by the works, and select representative NSRs as assessment points;

· Obtain the construction method and work sequence for the construction period;

· Obtain the construction plant inventory for each corresponding construction work sequence;

· Determine the Sound Power Levels (SWLs) of the plant items according to the information stated in the TM-GW or other recognized sources of reference, where appropriate;

· Calculate the correction factors based on the distance between the NSRs and the notional noise source positions of the worksites;

· Apply corrections for façade, distance, barrier attenuation, acoustic reflection where applicable;

· Predict construction noise levels at the NSRs;

· Quantify the level of impact at the NSRs, in accordance with TM-GW;

· Predict the cumulative noise impacts for any concurrent construction works in the vicinity of the proposed work;

· For any exceedance of noise criteria, all practical mitigation measures such as alternative construction methodology, quiet plant, silencer, enclosure, etc, shall be examined to alleviate the predicted noise impacts as much as practicable;

· The feasibility, practicability, programming and effectiveness of the recommended mitigation measures will be assessed. Any direct mitigation measures recommended will be documented in the report. Specific reasons for not adopting certain direct mitigation measures to reduce the noise to a level meeting the criteria in the TM or to maximize the protection for the NSRs as far as possible will be clearly substantiated and;

· Upon exhausting all direct mitigation measures and the mitigated noise impact still exceeds the relevant criteria in Annex 5 of the TM, residual construction noise impact will be identified, predicted and evaluated in accordance with section 4.4.3 of the TM; and

· Consideration of noise mitigation measures will follow Annex 13 of TM-EIAO and EIAO Guidance Note “Preparation of Construction Noise Impact Assessment under the Environmental Impact Assessment Ordinance” [GN 9/2010].

4.4.2 Identification of Construction Noise Impact

Identification of Assessment Area and Noise Sensitive Receivers

4.4.2.1 For construction noise assessment, the assessment area includes those within 300m from the boundary of the Project and the works of the Project. Representative NSR locations that would be affected by the construction activities have been selected from Table 4.5. They are also shown in Figure 4.1.

Inventory of Noise Sources

4.4.2.2 As discussed in Section 1, the major works items for the Project include the following:

· Carrying out site investigation works for detailed design;

· Provision of plants, equipment and materials on working barge(s) for implementation of the Project;

· Provision of temporary berthing and mooring facilities (temporary pier) using working barge and/or steel structures supported by piles to maintain access to Tung Ping Chau until a new berth of the pier is available for use;

· Removal of temporary pier, modification of the existing pier and installation of piles for the new pier;

· Construction of new pier structures (e.g. installation of precast elements on the pier structure etc.); and

· Construction of associated facilities on the new pier.

4.4.2.3 The noise sources during the construction phase would be the use of Power Mechanical Equipment (PME) in different construction works. The key construction activities which have a bearing on construction noise impacts include:

· Site investigation works for detailed design;

· Mobilization, pre-drilling works and construction of the temporary pier;

· Installation of piles for the new berth of the pier;

· Construction of the new pier structures for provision of the new berth of the pier;

· Installation of remaining piles for the new pier and demolition/modification works of the existing pier and temporary pier;

· Construction of the remaining new pier structures; and

· Construction of associated facilities on the new pier.

4.4.2.4 The PME inventories would generally include tug boat, derrick barge, rotary type drill rig, concrete saw/ groover, generator and barge-mounted mobile crane etc. Detailed plant inventory and utilisation rate provided and confirmed by the Project Engineer can be referred to Appendix 4.3.

4.4.2.5 There will be no concurrent projects during the construction phase of the Project. Consideration of construction noise impact from the concurrent projects is not required.

4.4.3 Prediction and Evaluation of Construction Noise Impact

Phase of Construction

4.4.3.1 As discussed in Section 2, site investigation works for detailed design of the Project are tentatively targeted to commence in Q4 2021 for completion in Q1 2022. The pier improvement works of the Project is tentatively targeted to commence in Year 2023 for completion in Year 2026. Tai Tong and Plover Cove (Extension) Country Park are identified as NSRs at approximately 210m and 70m away from the nearest works area respectively. Tai Tong is identified as a NSR in accordance with Annex 13 of the TM-EIAO, the relevant legislation and guidelines provide a specific noise limit in terms of Leq(30 min) 75 dB(A) for construction works at domestic premises during normal hours (i.e. 0700-1900). For Plover Cove (Extension) Country Park, there is no specific noise limit for Country Parks in the relevant legislation and guidelines including TM-EIAO and TM-GW.

Scenarios

4.4.3.2 Construction noise impact was assessed with respect to criteria set in Annex 5 of TM-EIAO and in accordance with the methodology stipulated in Annex 13 of TM-EIAO. The construction noise levels at representative NSR are predicted without any mitigation measures (i.e. the “Unmitigated Scenario”). If noise level exceedance was identified, further runs would be made assuming different combinations of mitigation measures to be incorporated. (i.e. “Mitigated Scenario”).

Prediction of Noise Impact

4.4.3.3 According to the latest engineering design, construction would mainly comprise site investigation works, construction of temporary pier, construction of improved pier and demolition of temporary pier as discussed in Section 4.4.2.2. The corresponding SWLs of these activities have been estimated according to the PME’s SWLs and the assessment methodology in the TM-GW. Appendix 4.2 presents the SWLs for each PME. Appendix 4.3 gives the plant inventory adopted for the workfront and Appendix 4.4 shows the location of the workfront adopted for this construction noise assessment. The utilisation rates and inventory of PME, as well as the construction programme, have been reviewed and confirmed by the project engineer to be practicable.

4.4.3.4 Appendix 4.5 presents the calculated construction noise impacts at selected representative NSRs under unmitigated scenario. The predicted construction noise impacts at the NSRs under unmitigated scenario are summaries in Table 4.6.

Table 4.6 Predicted construction noise impact at NSRs under unmitigated scenario

NSR^[^1]	Description	Uses^[^2]	Assessed Floor Level (mPD)	L_eq_(30-min),dB(A)
TPC-N1	Tai Tong	R	6.2	75	66	N/A

NSR^[^1]

Description

Uses^[^2]

Assessed Floor Level

(mPD)

L_eq_(30-min),dB(A)

Criterion

Unmitigated Noise Level

Exceedance

TPC-N1

Tai Tong

6.2

N/A

Notes:

[1] There is no criterion for Plover Cove (Extension) Country Park (TPC-N2). Thus, determination of construction noise level of TPC-N2 for compliance checking is not applicable.

[2] R – Residential

4.4.3.5 It can be seen from Table 4.6 that the predicted construction noise level arising from the Project at the representative NSR TPC-N1 will comply with the criterion of 75 dB(A) in terms of L_eq_(30-min) under the unmitigated scenario. Thus, adverse construction noise level is not anticipated.

4.4.3.6 For Plover Cove (Extension) Country Park (TPC-N2) with limited transient hikers, though the NSR is identified in accordance with Annex 13 of the TM-EIAO, the relevant legislation and guidelines including TM-EIAO and TM-GW do not provide a specific noise limit for Country Parks. In view of small scale of the Project, adverse noise impacts are not anticipated. In addition, good site practices are proposed in the following section to further minimise the construction noise impact on the Country Park environment as much as practicable.

4.4.3.7 In view of the minor scale of the Project and limited transient hikers using the hiking trail, it is anticipated that construction works during the restricted hours (i.e. 19:00 to 07:00 on weekdays or any hours in general holidays including Sunday) can be avoided through a better scheduling of works. In case of construction works carried out during the restricted hours, Constriction Noise Permit (CNP) shall be applied to satisfy the legal requirement under NCO. Moreover, as the site investigation, foundation works and demolition works of the Project are marine-based, only a limited air-borne construction noise would be generated. In addition, the construction works of above-water superstructure will mainly be implemented using prefabrication method as far as practicable. Prefabrication method could reduce the amount of above-water noisy operations on-site, and the number of PME items to be used would be limited. Therefore, no adverse construction noise impact is anticipated.

4.4.4 Enhancement Measures of Construction Noise Impact

4.4.4.1 As no exceedance of construction noise limit is predicted and adverse construction noise impact is not anticipated, mitigation measures are not required. Nevertheless, it is still recommended the following enhancement measures to minimise the construction noise impact as far as practical:

· Good site practices to limit noise emissions at the source;

· Use of quality powered mechanical equipment (QPME);

· Use of temporary noise barriers to screen noise from relatively static PME; and

· Alternative use of plant items within one worksite, wherever practicable.

4.4.4.2 The above enhancement measures would need to be implemented in worksites as good practices where appropriate. “Recommended Pollution Control Clauses for Construction Contracts” promulgated by EPD will be added to the Contract for future contractors to follow. Detailed descriptions of these enhancement measures are given in the following sections.

Good Site Management Practices

4.4.4.3 Good site practice and noise management techniques could considerably reduce the noise impact from construction site activities on nearby NSRs. The following measures should be practised during each phase of construction.

· only well-maintained plant should be operated on-site and plant should be serviced regularly during the construction programme;

· machines and plant (such as crane and generator) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum;

· plant known to emit noise strongly in one direction, where possible, be orientated so that the noise is directed away from nearby NSRs;

· silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works;

· mobile plant should be sited as far away from NSRs as possible and practicable; and

· material stockpiles, site office and other structures should be effectively utilised, where practicable, to screen noise from on-site construction activities.

4.4.4.4 The benefits of these techniques can vary according to specific site conditions and operations. The environmental noise climate would certainly be improved with these control practices, although the improvement can only be quantified during implementation when specific site parameters are known.

Use of Quality Powered Mechanical Equipment (QPME)

4.4.4.5 The use of quiet plant associated with the construction works is made reference to the PME listed in the QPME system and other commonly used PME listed in EPD web pages as far as possible. It is generally known (supported by field measurement) that particular models of construction equipment are quieter than standard types given in the TM-GW. Whilst it is generally considered too restrictive to specify that the Contractor has to use specific models or items of plant, it is reasonable and practicable to set plant noise performance specifications for specific PME so that some flexibility in selection of plant is allowed. A pragmatic approach would be to request that the Contractor independently verifies the noise level of the plant proposed to be used and demonstrates through furnishing of these results, that the plant proposed to be used on the Project site meets the requirements.

Use of Temporary Noise Barriers to Screen Noise from Relatively Static PME

4.4.4.6 Movable temporary noise barriers that can be located close to noisy plant and be moved concurrently with the plant along a worksite can be very effective for screening noise from NSRs. A typical design which has been used locally is a wooden framed barrier with a small-cantilevered upper portion of superficial density no less than 7kg/m² on a skid footing with 25mm thick internal sound absorptive lining. This measure is particularly effective for low level zone of NSRs.

4.4.4.7 Movable temporary noise barriers will be used for some PME items (e.g. generator). It is anticipated that suitably designed barriers could achieve at least 5dB(A) reduction for movable plant. Acoustic mat would be used for other plant items such as piling rig and a 5dB(A) noise reduction is anticipated.

Alternative Use of Plant Items within One Worksite

4.4.4.8 In practice, some plant items will operate sequentially within the same worksite, and certain reduction of the predicted noise impacts could be achieved. However, any additional control on the sequencing of plant will impose a restrictive constraint to the Contractor on the operation and planning of plant items, and the implementation of the requirement would be difficult to be monitored.

4.4.4.9 The feasibility, practicability, programming and effectiveness of the above enhancement measures have been reviewed by the project engineer and confirmed to be practicable.

4.4.5 Cumulative Impact with Concurrent Project

4.4.5.1 The potential neighbouring concurrent projects have been identified and evaluated in Section 2.10. Among these two identified concurrent projects, only “Environmental Association Ltd’s Desalination Project at Tung Ping Chau” has a confirmed construction programme. It will be completed in Q4 2020, which will not overlap with that of this Project. Cumulative construction noise impact is not anticipated.

4.4.6 Evaluation of Residual Construction Noise Impact

4.4.6.1 Construction noise impact arising from the Project can comply with the prescribed construction noise criterion stipulated in the TM-EIAO under the unmitigated scenario at the representative NSR. Adverse residual construction noise impact is not anticipated.

4.5 Operational Noise Impact Assessment

4.5.1.1 During the operational phase, the improved pier will not have any planned fixed noise sources. In addition, there would be no planned increase in the licensed Kaito services after the pier improvement works. Conversely, the main objectives of the Project are to enhance pier facilities and provide adequate structural integrity for safe pier usage. Renewable energy facilities at the new pier will be limited to non-noise emitting devices, such as solar panels. No loudspeakers, wind turbines or other fixed noise sources are proposed in the improved pier.

4.5.1.2 The representative NSRs, as summarised in Table 4.5, are located to the west of the Project site and are at least 70m away. As the pier length will increase from 97m to approximately 123m with the landing steps shifted seawards, the proposed berthing locations associated with the marine traffic noise sources will be farther away from the coast and the NSRs as compared with the current condition without pier improvement. Therefore, no operational noise impact is anticipated.

4.6 Conclusion

4.6.1 Construction Phase

4.6.1.1 Tai Tong and Plover Cove (Extension) Country Park are identified as NSRs at approximately 210m and 70m away from the nearest works area respectively. TM-EIAO has specified a noise limit of 75 dB(A) for domestic premises (e.g. TPC-N1 Tai Tong) during non-restricted hours. However, there is no specific noise limit provided for Country Parks (e.g. TPC-N2 Plover Cover (Extension) Country Park) from legislation and relevant guidelines.

4.6.1.2 Construction noise level has been predicted for the domestic representative NSR. The predicted construction noise level would comply with the perspective noise criterion in the TM-EIAO under the unmitigated scenario. For Plover Cove (Extension) Country Park (TPC-N2), in view of small scale of the Project and limited transient hikers using the hiking trail, adverse noise impacts are not anticipated. In addition, good site practices are proposed in Section 4.4.4 to further minimise the construction noise impact on the Country Park environment as much as practicable. Adverse construction noise impact is not anticipated.

4.6.1.3 Furthermore, since no construction works will be carried out during the restricted hours, and the prefabrication method for the superstructure construction will be adopted as far as practicable. In addition, a number of enhancement measures including good site practices, the use of QPME, and the use of temporary noise barriers, etc. are proposed in Section 4.4.4 to further reduce the construction noise impact. Therefore, no adverse construction noise impact is anticipated.

4.6.2 Operational Phase

4.6.2.1 During the operational phase, the improved pier will not have any planned fixed noise sources. In addition, there would be no planned increase in the licensed Kaito services after the pier improvement works. Therefore, no operational noise impact is anticipated.

4. Do not delete this. This is for Table Number.