TABLE OF
CONTENTS
9 Landscape and Visual Impacts.. 9-1
9.2 Environmental
Legislation, Standards and Criteria9-1
9.4 Review of Planning
and Development Control Framework9-6
9.6 Landscape Impact
Assessment9-16
9.7 Visual Impact
Assessment9-22
9.8 Landscape and Visual
Mitigation Measures9-28
LIST
OF FIGURES
Landscape Resources |
|
Landscape Resources Photos |
|
Landscape Character Areas |
|
Landscape Character Areas Photos |
|
Visually Sensitive Receivers |
|
Visually Sensitive Receivers Photos |
|
Landscape and Visual Mitigation Plan |
|
Photomontage for VSR1 – Tung Chung New Town Extension,
Tung Chung East Development (Sheet 1 of 2) |
|
Photomontage for VSR1 – Tung Chung New Town Extension,
Tung Chung East Development (Sheet 2 of 2) |
|
Photomontage for VSR8 - North Lantau Highway (Sheet 1 of
2) |
|
Photomontage for VSR8 - North Lantau Highway (Sheet 2 of
2) |
|
Photomontage for VSR13 - Cheung Tung Road (Sheet 1 of 2) |
|
Photomontage for VSR13 - Cheung Tung Road (Sheet 2 of 2) |
|
Photomontage for VSR14 - Vehicular Access Bridge to North
Lantau Highway |
LIST OF appendix
Appendix 9.1 Approximate Location of Affected Trees
· Environmental Impact Assessment Ordinance (EIAO) (Cap.499 S.16) and the Technical Memorandum on EIA Process (EIAO-TM), particularly Annexes 10 and 18;
· Environmental Impact Assessment Ordinance Guidance Note No. 8/2010;
· Town Planning Ordinance (Cap. 131);
· Protection of Endangered Species of Animals and Plants Ordinance (Cap. 586);
· Hong Kong Planning Standards and Guidelines Chapters 4, 10 and 11;
· AFCD Nature Conservation Practice Note No. 2 - Measurement of Diameter at Breast Height (DBH);
· AFCD Nature Conservation Practice Note No. 3 – The Use of Plant Names;
· ETWB TC(W) No. 29/2004 - Registration of Old and Valuable Trees, and Guidelines for their Preservation;
· DEVB TC(W) No. 2/2012 - Allocation of Space for Quality Greening on Roads;
· DEVB TC(W) No. 6/2015 - Maintenance of Vegetation and Hard Landscape Features;
· DEVB TC(W) No. 7/2015 - Tree Preservation;
· LAO PN 7/2007 - Tree Preservation and Tree Removal Application for Building Development in Private Projects;
· Guidelines on Tree Transplanting (September 2014) issued by Greening, Landscape and Tree Management (GLTM) Section of DevB;
· Guidelines on Tree Preservation during Development (April 2015) issued by GLTM Section of DevB; and
· Study on Landscape Value Mapping of Hong Kong.
Landscape Impact Assessment Methodology
· Identification of the baseline landscape resources and landscape characters found within the study area. This is achieved by site visits and desktop study of topographical maps, information databases and photographs.
· Assessment of the degree of sensitivity of the landscape resources and landscape character areas. This is influenced by a number of factors including whether the resource/character is common or rare, whether it is considered to be of local, regional, national or global importance, whether there are any statutory or regulatory limitations/requirements relating to the resource, the quality of the resource/character, the maturity of the resource and the ability of the resource/character to accommodate change.
· The sensitivity of each landscape feature and character area is classified as follows:
High: |
Important landscape
character or resource of particularly distinctive character or high
importance, sensitive to relatively small change. |
Medium: |
Landscape character
or resource of moderately valued landscape characteristics reasonably
tolerant to change. |
Low: |
Landscape character
or resource, the nature of which is largely tolerant to change. |
· Identification of potential sources of landscape changes. These are the various elements of the construction works and operation procedures that would generate landscape impacts.
· The magnitude of landscape changes is classified as follows:
Large: |
The landscape
character or landscape resource would incur a major change. |
Intermediate: |
The landscape
character or landscape resource would incur a moderate change. |
Small: |
The landscape or
landscape resource would incur slight or barely perceptible change. |
Negligible: |
The landscape or
landscape resource would incur no discernible change. |
· Identification of potential landscape mitigation measures. These may take the form of adopting basic engineering design to prevent and/or minimize adverse landscape impacts before adopting other mitigation or compensatory measures to alleviate the impacts. Potential mitigation measures shall also include the preservation of vegetation and natural landscape resources, transplanting trees with good condition and high amenity value, provision of screen planting, re-vegetation of disturbed lands, compensatory planting, aesthetic design of aboveground structures including provision of finishes, colour scheme, texture of materials used and any measures to mitigate the impact on the existing and planned land use and visually sensitive receivers. A programme for the mitigation measures is provided. The agencies responsible for the funding, implementation, management and maintenance of the mitigation measures are identified.
· Prediction of the significance of landscape impacts before and after the implementation of the mitigation measures. By synthesizing the magnitude of the various impacts and the sensitivity of the various landscape resources, it is possible to categorize impacts in a logical, well-reasoned and consistent fashion. Table 9.1 shows the rationale for dividing the degree of significance into four thresholds, namely insubstantial, slight, moderate, and substantial, depending on the combination of a negligible-small-intermediate-large magnitude of change and a low-medium-high degree of sensitivity of landscape resource/character.
Table
9.1 Relationship
between Landscape Sensitivity and Magnitude of Change in Defining Impact
Significance
Magnitude
of Change |
Large |
Moderate |
Moderate /
Substantial |
Substantial |
Intermediate |
Slight / Moderate |
Moderate |
Moderate /
Substantial |
|
Small |
Insubstantial /
Slight |
Slight / Moderate |
Moderate |
|
Negligible |
Insubstantial |
Insubstantial |
Insubstantial |
|
|
Low |
Medium |
High |
|
Sensitivity
of Landscape Character Area and Resource |
Note: All impacts are Adverse unless otherwise
noted with Beneficial. |
· The significance of landscape impacts is categorized as follows:
Substantial:
|
Adverse / beneficial
impact where the proposal would cause significant deterioration or
improvement in existing landscape quality. |
Moderate: |
Adverse / beneficial
impact where the proposal would cause a noticeable deterioration or
improvement in existing landscape quality. |
Slight: |
Adverse / beneficial
impact where the proposal would cause a barely perceptible deterioration or
improvement in existing landscape quality. |
Insubstantial: |
No discernible change
in the existing landscape quality. |
· Prediction of Acceptability of Impacts. An overall assessment of the acceptability, or otherwise, of the impacts according to the five criteria set out in Annex 10 of the EIAO-TM.
Visual Impact Assessment Methodology
· Identification of the Visual Envelope during the construction and operation phases of the project. This is achieved by site visit and desktop study of topographic maps, photographs and preparation of cross-sections to determine visibility of the Project from various locations.
· Identification of the VSRs within the Visual Envelope at construction and operation phases. These are the people who would reside within, work within, play within, or travel through, the Visual Envelope.
· Assessment of the degree of sensitivity of the VSRs. Factors considered include:
- the type of VSRs, which is classified according to whether the person is at home, at work, at play, or travelling. Those who view the change from their homes are considered to be highly sensitive as the attractiveness or otherwise of the outlook from their home will have a substantial effect on their perception of the quality and acceptability of their home environment and their general quality of life. Those who view the impact from their workplace are considered to be only moderately sensitive as the attractiveness or otherwise of the outlook will have a less important, although still material, effect on their perception of their quality of life. The degree to which this applies depends on whether the workplace is industrial, retail or commercial. Those who view the impact whilst taking part in an outdoor leisure activity may display varying sensitivity depending on the type of leisure activity. Those who view the impact whilst travelling on a public thoroughfare will also display varying sensitivity depending on the speed of travel.
- other factors which are considered (as required by EIAO GN 8/2010) include the value and quality of existing views, the availability and amenity of alternative views, the duration or frequency of view, and the degree of visibility.
· The sensitivity of VSRs is classified as follows:
High: |
The VSR is highly
sensitive to any change in their viewing experience. |
Medium: |
The VSR is moderately
sensitive to any change in their viewing experience. |
Low: |
The VSR is only
slightly sensitive to any change in their viewing experience. |
· Identification of relative numbers of VSRs. This is expressed in terms of whether there are “many“, “medium” and “few” VSRs in any one category of VSR.
· Identification of potential sources of visual changes. These are the various elements of the construction works and operation that would generate visual changes.
· Assessment of the potential magnitude of visual changes. Factors considered include:
- the compatibility with the surrounding landscape;
- the duration of the impact;
- the reversibility of the impact;
- the scale of the impact and distance of the source of impact from the viewer; and
- the degree of visibility of the impact, and the degree of which the impact dominates the field of vision of the viewer.
· The magnitude of visual changes is classified as follows:
Large: |
The VSRs would suffer
a major change in their viewing experience. |
Intermediate: |
The VSRs would suffer
a moderate change in their viewing experience. |
Small: |
The VSRs would suffer
a small change in their viewing experience. |
Negligible: |
The VSRs would suffer
no discernible change in their viewing experience. |
· Identification of potential visual mitigation measures. These may take the form of adopting basic engineering design to prevent and/or minimize adverse visual impacts before adopting other mitigation or compensatory measures to alleviate the impacts. Potential mitigation measures shall also include the preservation of vegetation and natural landscape resources, provision of screen planting, re-vegetation of disturbed lands, compensatory planting, aesthetic design of aboveground structures including provision of finishes, colour scheme, texture of materials used and any measures to mitigate the impact on the existing and planned land use and visually sensitive receivers. A programme for the mitigation measures is provided. The agencies responsible for the funding, implementation, management and maintenance of the mitigation measures are identified.
· Prediction of the significance of visual impacts before and after the implementation of the mitigation measures. By synthesizing the magnitude of the various visual impacts and the sensitivity of the VSRs, and the numbers of VSRs that are affected, it is possible to categorize the degree of significance of the impacts in a logical, well-reasoned and consistent fashion. Table 9.2 shows the rationale for dividing the degree of significance into four thresholds, namely, insubstantial, slight, moderate and substantial, depending on the combination of a negligible-small-intermediate-large magnitude of change and a low-medium-high degree of sensitivity of VSRs.
Table
9.2 Relationship
between Visually Sensitive Receivers (VSRs) Sensitivity and Magnitude of Change
in Defining Impact Significance
Magnitude
of Change |
Large |
Moderate |
Moderate /
Substantial |
Substantial |
Intermediate |
Slight / Moderate |
Moderate |
Moderate /
Substantial |
|
Small |
Insubstantial /
Slight |
Slight / Moderate |
Moderate |
|
Negligible |
Insubstantial |
Insubstantial |
Insubstantial |
|
|
Low |
Medium |
High |
|
Sensitivity
of Visually Sensitive Receivers (VSRs) |
Note: All impacts are Adverse unless otherwise
noted with Beneficial. |
· The significance of visual impacts is categorized as follows:
Substantial:
|
Adverse / beneficial
impact where the proposal would cause significant deterioration or
improvement in existing visual quality. |
Moderate: |
Adverse / beneficial
impact where the proposal would cause a noticeable deterioration or
improvement in existing visual quality. |
Slight: |
Adverse / beneficial
impact where the proposal would cause a barely perceptible deterioration or
improvement in existing visual quality. |
Insubstantial: |
No discernible change
in the existing visual quality. |
· Prediction of Acceptability of Impacts. An overall assessment of the acceptability, or otherwise, of the impacts according to the five criteria set out in Annex 10 of the EIAO-TM.
· Eastern part of the Approved Tung Chung Extension Area Outline Zoning Plan No. S/I-TCE/2 (7.2.2017);
· Western part of the North-East Lantau Outline Development Plan No. D/I – NEL/1;
· Siu Ho Wan Layout Plan (LP) No. L/I-SHW/1A; and
· Draft Tai Ho Outline Zoning Plan No. S/I-TH/1.
Landscape Resources
Landscape Character
Areas
Table
9.3a Baseline
Landscape Resources
(LRs)
LRs |
Description |
LR1 |
Secondary Woodland The
LR refers to the clusters of secondary woodland found on the foothills near
Tai Ho Wan and Siu Ho Wan, it is mostly scattered over the slopes. Some
extents of the LR lie within the boundary of Lantau North (Extension) Country
Park and are broken up by shrubland and grassland. Dominant species include Litsea
gltinosa, Bridelia tomentosa, and Celtis sinensis. No species of
conservation importance was recorded within this LR. The quality and
value of these natural landscape resources is considered as ‘High’. The
overall sensitivity is considered as ‘High’. |
LR2 |
Hillside
Shrubland &
Grassland The LR refers to the
patches of shrubland and grassland on the hillsides near Tai Ho
Wan and Siu Ho Wan and extend down the steep slopes of the surrounding mountains. The extents of the
LR are broken up by bare rocks and secondary woodland.
Three floral species of conservation importance were found within this LR
during the survey, including Arundina graminifolia, Diospyros
vacciniodes and Nepethes mirabilis. In addition, common species
include Rhodomyrtus tomentosa, Baeckea frutescens, Miscanthus
spp, and Dicranopteris pedata combined with grassland. The
landscape quality and rarity is considered as ‘High’, but consider to its
medium maturity, the overall sensitivity is considered as ‘High’. |
LR3 |
Coastal
Waters The LR refers to the seawater (excluding transitional waters) within in the
vicinity. This
LR covers a large proportion of the Assessment Area, therefore the rarity is considered
to be ‘Medium’. Since there
are reclamation works nearby (i.e HKBCF), therefore the landscape quality and
value is considered to be medium. The overall sensitivity is considered as ‘Medium’. |
LR4 |
Transitional Waters The LR refers to the waters
to the south of North Lantau Highway in Tai Ho Wan, where a mixture of
freshwater and marine waters exist, it is localized to the
natural coastal and estuary which is providing quality landscape amenity and
supporting adjacent coastal habitat. As the coast is located near the Tai Ho
Stream Site of Special Scientific Interest (SSSI) and ecologically sensitive,
it has a ‘low’ capacity to accept change. The landscape quality and value is considered
to be high. The overall sensitivity is ‘High’. |
LR5 |
Rocky Shore The
LR refers to small stretches of rocky shore located at Tai Ho Wan. Plant
species including some mangrove and backshore vegetation (including Aegiceras corniculatum, Clerodendrum
inerme, Scaevola taccada and Pandanus
tectorius) colonised in the rocky crevices and along the shore. As the
coast is located near the Tai Ho Stream Site of Special Scientific Interest
(SSSI) and ecologically sensitive, the landscape quality and value is
considered to be high. The overall sensitivity is ‘High’. |
LR7 |
Natural Watercourse This LR
refers to natural watercourses within the assessment area, the streams
originate from the Country Park feeding the larger streams which then enter
Tai Ho Wan. Given the naturalness and relative vulnerability of the LR it is
considered to have a ‘Low’ capacity to accept change. The landscape quality
and value is considered to be high. The overall sensitivity is also ‘High’.
|
LR8 |
Channelised Watercourse / Ditch This LR refers to the artificial water channel within the assessment, it is located along the southern boundary of the SHWWTW. Given the naturalness and relative vulnerability of the LR
it is considered to have a ‘High’ capacity to accept change. The landscape quality
and value is considered to be low. The overall sensitivity is also ‘Low’. |
LR9 |
Plantation The LR refers to the
amenity tree / vegetation planting which found within urbanized area, such as
engineered slopes and pedestrian / roadside planters. Exotic species commonly
found in the canopy included Acacia confusa, Acacia mangium, Eucalyptus
spp., Lophostemon conferta, Aporosa dioica, Sterculia
lanceolata, Daphniphyllum calycinum, Psychotria asiatica, Blechnum orientale.
An individual of plant of conservation importance, Cibotium barometz,
was recorded at the ravine under this LR. There is no Old and Valuable Trees
(OVTs) or Potentially Registrable Old and Valuable Trees (POVT) were found
within this LR. The landscape value and quality is considered to be medium.
The overall sensitivity is considered as ‘Medium’. |
LR10 |
Existing Siu Ho Wan Depot with
Amenity Planting This LR covers trees and shrubs planting within the Siu Ho Wan Depot (SHD).
Trees and
shrubs are found at the periphery and some isolated
planter beds in the Depot. Trees planted within SHD are all common species, including Acacia confusa, Bauhinia
blakeana, Ficus virens, Hibiscus tiliaceus and Livistona
chinensis. There is no OVTs, endangered and protected species identified within this
resource. Most of the trees are semi-mature to mature size. It is a common
landscape resource. The quality of the existing vegetation is considered to be medium. The overall sensitivity
is considered as ‘Medium’. |
LR11 |
Roads & Urban Infrastructures with
Amenity Planting This LR covers
roadside tree and shrub within the amenity planting areas, embankments at
both sides the North Lantau Expressway. Plantings found are all common
species, including Acacia confusa, Bombax ceiba, Nerium oleander,
Hibiscus tiliaceus and Leucaena leucocephala. Most of the trees are
semi-mature to mature size. It is a common landscape resource. The landscape
quality and value is considered to be medium. The overall sensitivity is also
‘Medium’. |
LR12 |
Urbanised Development The LR refers to the
urbanised areas of Siu Ho Wan area including the SHWWTW and SHWSTW. Given the
man-made nature of this LR, the quality and value is considered to be low.
The overall sensitivity is considered to be ‘Low’. |
LR13 |
Artificial Seawall The LR refers to the
artificial coastline along reclaimed land of SHW, it is a rubble mound
revetment constructed with pedestrian and vehicular parapet along footpath/
road interfaces. Given the man-made nature, the quality and value is
considered to be medium. The overall sensitivity is considered as ‘Low’.
|
Table 9.3b
Sensitivity of Landscape Resources (LRs)
ID |
Landscape Resources (LRs) |
Quality of LR |
Rarity of LR |
Importance of LR |
Ability to accommodate change |
Maturity of LR |
Sensitivity |
(High / Medium / Low) |
(High / Medium / Low) |
(Local / Territorial /
Regional / Global) |
(Low / Medium / High) |
(Low / Medium / High) |
(Low / Medium / High) |
||
LR1 |
Secondary Woodland |
High |
High |
Local |
Low |
Medium |
High |
LR2 |
Hillside Shrubland
& Grassland |
High |
High |
Local |
Low |
Medium |
High |
LR3 |
Coastal Waters |
Medium |
Medium |
Local |
Medium |
N/A |
Medium |
LR4 |
Transitional Waters
|
High |
High |
Local |
Low |
N/A |
High |
LR5 |
Rocky Shore |
High |
High |
Local |
Low |
N/A |
High |
LR7 |
Natural Watercourse |
High |
High |
Local |
Low |
N/A |
High |
LR8 |
Channelised Watercourse / Ditch |
Low |
Low |
Local |
High |
N/A |
Low |
LR9 |
Plantation |
Medium |
Medium |
Local |
Medium |
Medium |
Medium |
LR10 |
Existing Siu Ho Wan
Depot with Amenity Planting |
Medium |
Medium |
Local |
Medium |
Medium |
Medium |
LR11 |
Roads & Urban
Infrastructures with Amenity Planting |
Medium |
Medium |
Local |
High |
Medium |
Medium |
LR12 |
Urbanised
Development |
Low |
Low |
Local |
High |
N/A |
Low |
LR13 |
Artificial Seawall |
Medium |
Low |
Local |
High |
N/A |
Low |
Table 9.4a Baseline Landscape Character Areas (LCAs)
LCAs |
Description |
LCA1 |
Upland Hillside Landscape The
LCA refers to densely vegetation area on the slopes of the mountains which
forms the backdrop to Siu Ho Wan. Part of this area falls within the Lantau
North (Extension) Country Park. It also refers to undeveloped upland hillside
landscape surrounding the study area generally above 40mPD. The natural
terrain comprises mainly shrubland/ grassland with some strips of secondary
woodland and rocky outcrops. As a result of the natural unaltered terrain,
the capacity to accept change is ‘Low’. The overall sensitivity is considered
as ‘High’. |
LCA3 |
Inshore Water Landscape The LCA
refers to the waterscape which located to the north and west of SHD. The
coastal interface is predominantly constructed in artificial stone revetment.
Seascape is open to the north towards Tuen Mun. The LCA has historically been
encroached upon through phases of reclamation to form the NLH, AEL, Tung
Chung waterfront and HKIA; it is therefore considered that the LR has a
medium capacity to accept change. The LCA is very common; its rarity is
therefore ‘Medium’. Seascape is a contributor to landscape character, the
landscape value and quality is considered to be ‘Medium’. The overall
sensitivity is considered as ‘Medium’. |
LCA4 |
Industrial Urban Landscape The
LCA refers to the utilities/ infrastructure area in Siu Ho Wan, including
SHWSTW, Siu Ho Wan Government Maintenance Depot, Discovery Bay Tunnel
Administration Building and New Lantau Bus Company Siu Ho Wan Depot. As this
landscape has been heavily developed, it is considered to have a high
capacity to accept change. The landscape contains some mature planting and
formalised landscape spaces which provide some landscape amenity, in this
case the landscape value and quality is ‘Medium’. The overall sensitivity is
considered as ‘Low’. |
LCA5 |
Transportation Corridor Landscape The
LCA refers to the transport corridor approaching the reclaimed land of Siu Ho
Wan from the east containing the SHD, NLH, LAR and Tung Chung Road. The NLH
comprises a 6-lane highway delineated with concrete barriers and boundary
fencing. The corridor is entirely built on top of reclaimed landscape.
Vegetation cover is restricted to narrow verges with grass, hedge and tree
planting. As a result of the man-made nature of the LCA, it is considered to
have a high capacity to accept change. Infrastructure routes are not
considered to be rare therefore the rating is ‘Low’. The overall sensitivity
is considered as ‘Medium’. |
Table
9.4b Sensitivity of Landscape
Character Area (LCAs)
ID |
Landscape Resources (LRs) |
Quality of LR |
Rarity of LR |
Importance of LR |
Ability to accommodate change |
Maturity of LR |
Sensitivity |
(High / Medium / Low) |
(High / Medium / Low) |
(Local / Territorial /
Regional / Global) |
(Low / Medium / High) |
(Low / Medium / High) |
(Low / Medium / High) |
||
LCA1 |
Upland Hillside
Landscape |
High |
High |
Local |
Low |
High |
High |
LCA3 |
Inshore Water
Landscape |
Medium |
Medium |
Local |
Medium |
N/A |
Medium |
LCA4 |
Industrial Urban
Landscape |
Medium |
Low |
Local |
High |
N/A |
Low |
LCA5 |
Transport-ation
Corridor Landscape |
Low |
Low |
Local |
High |
N/A |
Medium |
Broad Brush Tree Survey
Visual Envelope (VE)
Visually Sensitive
Receivers (VSRs)
Table 9.5 Baseline Visually Sensitive Receivers
(VSRs) and their Sensitivity
VSR Groups |
Visually
Sensitive Receivers (VSRs) |
Main Type of VSRs |
Number of Individuals (Many/ Medium/ Few) |
Quality of
Existing View (Good/Fair/ Poor) |
Availability of Alternative Views (Yes/No) |
Degree of Visibility (Full/ Partial/ Glimpse) |
Duration of View (Long/ Medium/ Short) |
Frequency of View (Frequent/ Occasional/
Rare) |
Sensitivity |
VSR1 |
Tung Chung New Town Extension Tung Chung East Development (TCNTE TCE
Development) - Future users of
waterfront open space/ promenade at TCNTE TCE Development |
Recreational |
Medium |
Good |
Yes |
Partial |
Medium |
Occasional |
Medium |
VSR2 |
Waterfront near Tung Chung Area 56 – Future recreational users of open
space |
Recreational |
Medium |
Fair |
Yes |
Partial |
Medium |
Occasional |
Medium |
VSR3 |
Pak Mong Village – Villagers |
Residential |
Few |
Good |
Yes |
Partial |
Long |
Frequent |
Medium |
VSR4 |
Hong Kong Olympic Trail – Hikers |
Recreational |
Few |
Good |
Yes |
Glimpse |
Short |
Occasional |
Low |
VSR5 |
Lo Fu Tau Country Trail - Hikers |
Recreational |
Few |
Good |
Yes |
Partial |
Short |
Occasional |
Low |
VSR6 |
Hong Kong Boundary Crossing Facilities – Future visitors |
Recreational
|
Medium |
Good |
Yes |
Full
|
Medium |
Occasional |
Medium |
VSR7 |
Tai O – Tuen Mun Ferry - Passengers |
Transportation |
Few |
Good |
Yes |
Full |
Short |
Rare |
Low |
VSR8 |
North Lantau Highway – Passengers and drivers |
Transportation |
Medium |
Fair |
Yes |
Full |
Short |
Rare |
Low |
VSR9 |
Siu Ho Wan Government Maintenance Depot – Workers |
Occupational |
Few |
Fair |
Yes |
Partial |
Short |
Rare |
Low |
VSR10 |
Along Tuen Mun Road and Castle Peak Road – Passengers and Drivers |
Transportation |
Medium |
Good |
Yes |
Full |
Short |
Rare |
Low |
VSR11 |
Tai Lam Country Park – Hikers |
Recreational |
Few |
Good |
Yes |
Partial |
Short |
Occasional |
Low |
VSR12a |
Tuen Mun South Coast - Residents |
Residential |
Many |
Good |
Yes |
Full |
Long |
Frequent |
High |
VSR12b |
Tuen Mun South Coast - Users of Tuen Mun Promenade |
Recreational |
Medium |
Good |
Yes |
Full |
Medium |
Occasional |
Medium |
VSR13
|
Cheung
Tung Road – Passengers and Drivers |
Transportation |
Few |
Fair |
Yes |
Full |
Short |
Rare |
Low |
VSR14 |
Vehicular Access Bridge to
North Lantau Highway |
Transportation |
Few |
Fair |
Yes |
Full |
Short |
Rare |
Low |
Potential Sources of
Landscape Impacts
·
Demolition
of existing depot facilities;
·
Pipe
jacking works for installation of underground utilities and
associated excavation and lateral support (ELS) works;
·
Piling
works, pile cap construction and ELS works related to the construction of
planned SHD Topside Development;
·
Pad
footing foundation works;
·
Construction
of SHO and modification of existing AEL/TCL tracks; as well as local access
roads and emergency vehicular access (EVA);
·
Construction
of podium deck; and
·
Reprovision
of SHD facilities by stages (under the podium deck).
·
Operation
of the SHO;
·
Operation
of the Reprovisioned SHD; and
·
Operation
of western access road bridge.
Table 9.6a Sources and Description of
Landscape Impacts during Construction and Operation Phases
ID
No. |
Landscape
Resources/ Landscape Character Areas |
Source
of Impact from Project |
Description
of Unmitigated Impacts |
|
Landscape Resources |
||||
LR1 |
Secondary Woodland |
Nil |
Nil |
|
LR2 |
Hillside Shrubland & Grassland |
Nil |
Nil |
|
LR3 |
Coastal Waters |
Nil |
Nil |
|
LR4 |
Transitional Waters |
Nil |
Nil |
|
LR5 |
Rocky Shore |
Nil |
Nil |
|
LR7 |
Natural Watercourse |
Nil |
Nil |
|
LR8 |
Channelised Watercourse / Ditch |
Nil |
Nil |
|
LR9 |
Plantation |
Construction and
operation Phase: •
Upgrading and reprovision of the underground sewerage network |
During construction
phase, no trees but only vegetation would be affected by the works
involved, it is anticipated that there would not be any significant
landscape impact. During operation
phase, it is anticipate that there would not be any landscape impact as the sewerage
network is located underground. |
|
LR10 |
Existing Siu Ho Wan Depot with Amenity Planting |
Construction Phase: • Site clearance and
site formation works • Demolition of
existing SHD facilities; • Bored piling works,
pile cap construction and excavation; • Construction of SHO
and modification of existing AEL/TCL tracks; and • Illumination within
construction site. Operation Phase: • Operation of SHO
and Reprovisioned SHD |
During construction
phase, approximately 510 nos. of existing trees within SHD will be affected
by the SHD Replanning Works. Affected
tree species include Archontophoenix
alexandrae, Bauhinia blakeana, Ficus virens, Hibiscus tiliaceus, Livistona
chinensis and Phoenix roebelenii. They are generally of semi-mature to mature
size, with DBH varies from size 95mm to 500mm, 1.5m to 12m height and 1m to
10m spread. |
|
LR11 |
Roads & Urban Infrastructures with Amenity Planting |
Construction Phase: • temporary works
areas and storage area; • Illumination within
construction site. • Construction of
western access road bridge • Upgrading and
reprovision of the underground sewerage network Operation Phase: • Operation of
western access road bridge |
During construction phase, there would be potential
localized impact due to construction of the western access road bridge and
the upgrading and reprovision of sewerage network and site clearance for temporary works area and
storage area. It is anticipated that
no tree will be affected within this LR due to the construction works. During operation phase, there would be relatively small
and localized change of landscape area due to the proposed aboveground
structures. |
|
LR12 |
Urbanised Development |
Construction and operation Phase: • Upgrading and
reprovision of the underground sewerage network |
During construction
phase, no trees but only vegetation would be affected by the potential upgrading
and reprovision works involved, it is anticipated that there
would not be any significant landscape impact. During operation
phase, it is anticipate that there would not be any landscape impact as the
upgrading works are underground in nature.
|
|
LR13 |
Artificial Sea Wall |
Nil |
Nil |
|
Landscape Character Area |
||||
LCA1 |
Upland Hillside Landscape Area |
Nil |
Nil |
|
LCA3 |
Inshore Water Landscape |
Nil |
Nil |
|
LCA4 |
Industrial Urban Landscape |
Construction and operation Phase: • Upgrading and
reprovision of the underground sewerage network |
During construction
phase, no trees but vegetation would be affected by the potential upgrading
and reprovision works involved, it is anticipated that there would not be any significant
landscape impact. During operation phase, it is anticipate that there would
not be any landscape impact as the upgrading works are underground in
nature. |
|
LCA5 |
Transportation Corridor Landscape |
Construction Phase: • Demolition of
existing SHD facilities; • Bored piling works,
pile cap construction and excavation works related to the construction of
planned SHD Topside Development; • Construction of SHO
and modification of existing AEL/TCL tracks; and • Illumination within
construction site. Operation Phase: •
Operation of SHO and Reprovisioned SHD •
Operation of western access road bridge |
During the construction phase, there will be significant
change and landscape characters due to relatively extensive works areas which
cover majority of this LCA. During operation phase, there would be relatively small
and localized change of landscape character due to the proposed aboveground
structures. |
Magnitude of Landscape Impacts
Table 9.6b Magnitude of change
on Landscape Resources (LRs)
ID |
Landscape
Resources (LRs) |
Compatibility
with Surrounding Landscape (Good/ Fair/ Poor) |
Remarks on
Compatibility |
Duration of
Impact (Temporary / Permanent) |
Reversibility
of Change (Reversible/ Irreversible) |
Magnitude of
Change (Large/ Intermediate/ |
||||
Construction
Stage |
Operation
Stage |
Construction
Stage |
Operation
Stage |
Construction
Stage |
Operation
Stage |
Construction
Stage |
Operation
Stage |
|||
LR1 |
Secondary Woodland |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR2 |
Hillside Shrubland
& Grassland |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR3 |
Coastal Waters |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR4 |
Transitional Waters
|
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR5 |
Rocky Shore |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR7 |
Natural Watercourse |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR8 |
Channelised Watercourse / Ditch |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR9 |
Plantation |
Poor |
Fair |
There would be potential localized works in this LR. The
works on this LR is surrounded by LR12. Compatibility with surrounding landscape is
considered as Fair in construction stage and Good in operation stage. |
Temporary |
Permanent |
Reversible |
Reversible |
Negligible |
Negligible |
LR10 |
Existing Siu Ho Wan
Depot with Amenity Planting |
Poor |
Fair |
Majority
of the site works will be conducted
within this LR. This LR is surrounded by LR11 and LR13. Compatibility with surrounding landscape
is considered as Poor in construction stage and Fair in operation stage. |
Temporary |
Permanent |
Reversible |
Reversible |
Large |
Large |
LR11 |
Roads & Urban
Infrastructures with Amenity Planting |
Fair |
Good |
There would be potential localized works in this LR. The
works on this LR is surrounded by LR9, LR10, LR12 and LR13. Compatibility
with surrounding landscape is considered as Fair in construction stage and Good
in operation stage. |
Temporary |
Permanent |
Reversible |
Reversible |
Small |
Negligible |
LR12 |
Urbanised
Development |
Fair |
Good |
There would be potential localized works in this LR. The
works on this LR is surrounded by LR9 and LR11. Compatibility with surrounding landscape
is considered as Fair in construction stage and Good in operation stage. |
Temporary |
Permanent |
Reversible |
Reversible |
Negligible |
Negligible |
LR13 |
Artificial Seawall |
N/A |
N/A |
This LR falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
Table 9.6c Magnitude of change
on Landscape Character Area (LCAs)
ID |
Landscape Character Area (LCAs) |
Compatibility with
Surrounding Landscape (Good/ Fair/ Poor) |
Remarks on Compatibility |
Duration of Impact
(Temporary / Permanent) |
Reversibility of Change
(Reversible/ Irreversible) |
Magnitude of Change
(Large/ Intermediate/Small/ Negligible) |
||||
Construction Stage |
Operation Stage |
Construction Stage |
Operation Stage |
Construction Stage |
Operation Stage |
Construction Stage |
Operation Stage |
|||
LCA1 |
Upland Hillside
Landscape |
N/A |
N/A |
This LCA falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LCA3 |
Inshore Water
Landscape |
N/A |
N/A |
This LCA falls outside the subject site and associated
works. The Project will have no impact on it in general. |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LCA4 |
Industrial Urban
Landscape |
Fair |
Fair |
There would be potential localized works in this LCA. This LCA is surrounded by LCA1, LCA2 and LCA5. Compatibility with surrounding
landscape is considered as Fair in construction stage and Fair in operation
stage. |
Temporary |
Permanent |
Reversible |
Reversible |
Negligible |
Negligible |
LCA5 |
Transportation
Corridor Landscape |
Poor |
Fair |
The main site works will be conducted within this LCA. This LCA is surrounded by LCA1, LCA3 and LCA4. Compatibility with surrounding
landscape is considered as Poor in construction stage and Fair in operation
stage. |
Temporary |
Permanent |
Reversible |
Reversible |
Large |
Intermediate |
Significance of
Unmitigated Landscape Impacts
Sources of Visual
Impacts
Magnitude of Visual
Impacts
Significance of
Unmitigated Visual Impacts
· the vantage point which covers the aboveground structures of SHO and Reprovisioned SHD viewed from major public viewpoint represents key VSRs or VSR groups who would be potentially affected by the Project; and
· the vantage point which represents the worst case scenarios and demonstrate the compatibility of the aboveground structures to the adjacent visual context and illustrate the visual effect during Day 1 without mitigation measures, Day 1 with mitigation measures and Year 10 with mitigation measures.
· Photomontages for VSRs – TCNTE TCE Development (VSR1);
· Photomontages for VSRs – North Lantau Highway (VSR8);
· Photomontages for VSRs – Cheung Tung Road (VSR13); and
· Photomontages for VSRs – Vehicular Access Bridge to North Lantau Highway (VSR14).
Table 9.7 Magnitude of Visual Changes during Construction and Operation Phases
VSR Groups |
Visually Sensitive
Receiver (VSR) |
Approx. Closest Viewing Distance to Project Site (m) |
Potential
Blockage of View (Full / Partial
/Glimpse/ Nil) |
Scale of Development (Large / Medium / Small) |
Compatibility of
the Project with the Surrounding landscape (Good / Fair /
Poor) |
Duration of Impacts (Long/ Medium/
short) |
Reversibility of Change (Yes / No) |
Magnitude of
Changes (Large /
Intermediate / Small / Negligible) |
|
Construction |
Operation |
||||||||
VSR1 |
Tung Chung New
Town Extension Tung Chung East Development (TCNTE TCE Development) - Future
users of waterfront open space/ promenade at TCNTE TCE Development |
1470 |
Partial |
Small |
Fair |
Long |
No |
Negligible |
Negligible |
VSR2 |
The Visionary –
Waterfront near Tung Chung Area 56 |
2825 |
Nil |
Negligible |
N/A |
N/A |
N/A |
Negligible |
Negligible |
VSR3 |
Pak Mong Village
– Villagers |
1130 |
Partial |
Small |
Fair |
Long |
No |
Negligible |
Negligible |
VSR4 |
Hong Kong
Olympic Trail – Hikers |
1930 |
Partial |
Small |
Fair |
Long |
No |
Small |
Negligible |
VSR5 |
Lo Fu Tau
Country Trail - Hikers |
1525 |
Nil |
Small |
Fair |
Long |
No |
Small |
Negligible |
VSR6 |
Hong Kong Boundary Crossing Facilities – Visitors |
2390 |
Partial |
Medium |
Poor |
Long |
No |
Small |
Negligible |
VSR7 |
Tai O – Tuen Mun
Ferry - Passengers |
1825 |
Partial |
Small |
Poor |
Long |
No |
Small |
Negligible |
VSR8 |
North Lantau
Highway – Passengers and Drivers |
275 |
Partial |
Large |
Good |
Long |
No |
Intermediate |
Intermediate |
VSR9 |
Siu Ho Wan
Government Maintenance Depot – Workers |
120 |
Partial |
Medium |
Fair |
Long |
No |
Negligible |
Negligible |
VSR 10 |
Along Tuen Mun
Road and Castle Peak Road – Passengers and Drivers |
5870 |
Nil |
Large |
Good |
Nil |
No |
Negligible |
Negligible |
VSR 11 |
Tai Lam Country
Park – Hikers |
8315 |
Nil |
Large |
Poor |
Nil |
No |
Negligible |
Negligible |
VSR 12a |
Tuen Mun South
Coast - Residents |
7100 |
Nil |
Large |
Poor |
Nil |
No |
Negligible |
Negligible |
VSR 12b |
Tuen Mun South
Coast - Users of Tuen Mun Promenade |
6955 |
Nil |
Large |
Poor |
Nil |
No |
Negligible |
Negligible |
VSR 13 |
Cheung Tung Road – Passengers and Drivers |
50 |
Partial |
Large |
Good |
Long |
No |
Intermediate |
Intermediate |
VSR14 |
Vehicular
Access
Bridge to North Lantau Highway |
40 |
Partial |
Large |
Good |
Long |
No |
Intermediate |
Small |
Table 9.8 Landscape and Visual Mitigation Measures for
Construction Phase
ID No. |
Landscape and Visual Mitigation Measures |
CM1 |
Trees unavoidably affected by the works should be transplanted as far
as possible in accordance with DEVB TC (W) 7/2015 – Tree
Preservation or LAO PN 7/2007 - Tree Preservation and Tree Removal Application for Building
Development in Private Projects where applicable. |
CM2 |
Control of night-time lighting glare |
CM3 |
Erection of decorative screen hoarding which should be compatible with
the surrounding setting. |
CM4 |
Management of facilities on work sites by controlling the height and
disposition/arrangement of all facilities on the works site to minimize
visual impact to adjacent VSRs. |
CM5 |
All hard and soft landscape areas disturbed temporarily during
construction should be reinstated on like-to-like basis, to the satisfaction of the relevant Government Departments. |
Table 9.9 Landscape and
Visual Mitigation Measures for Operation Phase
ID No. |
Landscape and Visual Mitigation Measures |
OM1 |
Aesthetically pleasing design as regard to the form, material and
finishes shall be incorporated to SHD, SHO and other aboveground structures so
as to blend in the existing and future structures to the adjacent landscape
and visual context. |
OM2 |
All lighting should be
carefully designed and controlled to minimize light pollution and night-time
glare to nearby VSRs, and to blend in the existing adjacent landscape and
visual context. |
OM3 |
Compensatory planting shall be
determined during the Tree Removal Application process under DEVB TC (W)
7/2015 or LAO PN 7/2007 where applicable. Compensatory
planting will be implemented by future developer(s) of SHD Topside
Development. |
Residual Landscape
Impacts
Table 9.10 Significance of
landscape Impacts during Construction and Operation Phases
ID No. |
Landscape
Resources/ Landscape Character Areas |
Sensitivity (Low, Medium,
High) |
Magnitude of Change
(Negligible, Small, Intermediate, Large) |
Impact
Significance of Residual Impact BEFORE Mitigation |
Recommended
Mitigation Measures |
Impact
Significance of Residual Impact AFTER Mitigation |
|||||
Construction |
Operation |
Construction |
Operation |
Construction |
Operation |
Construction |
Operation |
||||
Day 1 |
Year 10 |
||||||||||
Landscape Resources |
|||||||||||
LR1 |
Secondary
Woodland |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR2 |
Hillside
Shrubland & Grassland |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR3 |
Coastal
Waters |
Medium |
Medium |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR4 |
Transitional
Waters |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR5 |
Rocky Shore |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR7 |
Natural
Watercourse |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR8 |
Channelised Watercourse / Ditch |
Low |
Low |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LR9 |
Plantation |
Medium |
Medium |
Negligible |
Negligible |
Insubstantial |
Insubstantial |
Not Required |
Insubstantial |
Insubstantial |
Insubstantial |
LR10 |
Amenity Planting within the Siu Ho Wan Depot |
Medium |
Medium |
Large |
Large |
Moderate |
Moderate |
CM1, CM4, CM5 OM1 to OM3(1) |
Moderate |
Moderate |
Moderate |
LR11 |
Roads
& Urban Infrastructures with Amenity Planting |
Medium |
Medium |
Small |
Negligible |
Slight |
Insubstantial |
CM5 |
Slight |
Insubstantial |
Insubstantial |
LR12 |
Urbanised
Development |
Low |
Low |
Negligible |
Negligible |
Insubstantial |
Insubstantial |
Not Required |
Insubstantial |
Insubstantial |
Insubstantial |
LR13 |
Artificial
Sea Wall |
Low |
Low |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
Landscape Character Area |
|||||||||||
LCA1 |
Upland
Hillside Landscape Area |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LCA3 |
Inshore
Water Landscape |
Medium |
Medium |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
LCA4 |
Industrial Urban Landscape |
Low |
Low |
Negligible |
Negligible |
Insubstantial |
Insubstantial |
Not Required |
Insubstantial |
Insubstantial |
Insubstantial |
LCA5 |
Transportation
Corridor Landscape |
Medium |
Medium |
Large |
Intermediate |
Moderate |
Moderate |
CM1 to CM5, OM1 to OM3(1) |
Moderate |
Slight |
Insubstantial |
Note:
(1)
Compensatory planting shall be determined during
the Tree Removal Application process under DEVB TC(W) No. 7/2015 or LAO PN
7/2007 where applicable.
Residual Visual Impacts
Table 9.11 Significance
of Visual Impacts during Construction and Operation Phases
ID No. |
VSRs |
Sensitivity (Low, Medium, High) |
Magnitude of Change (Negligible, Small, Intermediate, Large) |
Impact Significance before Mitigation (Insubstantial, Slight,
Moderate, Substantial) |
Recommended Mitigation Measures |
Significance of Residual Impact (Insubstantial, Slight, Moderate, Substantial) |
|||||
Construction |
Operation |
Construction |
Operation |
Construction |
Operation |
Construction |
Operation |
||||
Day 1 |
Year 10 |
||||||||||
VSR1 |
Tung Chung New Town Extension Tung Chung East Development (TCNTE TCE
Development) |
Medium |
Medium |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR2 |
The Visionary |
Medium |
Medium |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR3 |
Pak Mong Village |
Medium |
Medium |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR4 |
Hong Kong Olympic Trail |
Low |
Low |
Small |
Negligible |
Slight |
insubstantial |
CM2 to CM5, OM1 to OM3 |
Slight |
Insub-stantial |
Insub-stantial |
VSR5 |
Lo Fu Tau Country Trail |
Low |
Low |
Small |
Negligible |
Slight |
insubstantial |
CM2 to CM5, OM1 to OM3 |
Slight |
Insub-stantial |
Insub-stantial |
VSR6 |
Hong Kong Boundary Crossing
Facilities (HKBCF) |
Medium |
Medium |
Small |
Negligible |
Slight |
insubstantial |
CM2 to CM5, OM1 to OM3 |
Slight |
Insub-stantial |
Insub-stantial |
VSR7 |
Tai O – Tuen Mun Ferry |
Low |
Low |
Small |
Negligible |
Slight |
insubstantial |
CM2 to CM5, OM1 to OM3 |
Slight |
Insub-stantial |
Insub-stantial |
VSR8 |
North Lantau Highway |
Low |
Low |
Intermediate |
Intermediate |
Moderate |
Slight |
CM2 to CM5, OM1 to OM3 |
Moderate |
Slight |
Slight |
VSR9 |
Siu Ho Wan Government Maintenance
Depot |
Low |
Low |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR 10 |
Along Tuen Mun Road and Castle Peak
Road |
Low |
Low |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR 11 |
Tai Lam Country Park |
Low |
Low |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR 12a |
Tuen Mun South Coast |
High |
High |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR 12b |
Tuen Mun South
Coast |
Medium |
Medium |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
VSR 13 |
Cheung
Tung Road |
Low |
Low |
Intermediate |
Intermediate |
Moderate |
Moderate |
CM2 to CM5, OM1 to OM3 |
Moderate |
Slight |
Slight |
VSR14 |
Vehicular
Access Bridge to North Lantau Highway |
Low |
Low |
Intermediate |
Small |
Moderate |
Slight |
CM2 to CM5, OM1 to OM3 |
Moderate |
Slight |
Slight |
Comprehensive
Residential and Commercial Development atop SHD
Tuen Mun – Chek Lap Kok
Link (TM-CLKL)
Tung Chung New Town
Extension (TCNTE) – Tung Chung East (TCE) Development