13              LANDSCAPE AND VISUAL IMPACT ASSESSMENT (LVIA)

13.1          Introduction

13.1.1    This chapter present a summary of the Landscape and Visual Impact Assessment (LVIA) of the overall development and Chok Ko Wan Link Road (CKWLR) included as Annex J of this Report.

 

13.1.2    The LVIA of the Theme Park is covered in a separate report and includes the following designated projects: Penny’s Bay reclamation, Theme Park, Water Recreation Centre, Penny’s Bay Rail Link, Roadworks and Drainage Channel.

 

13.2          Baseline Conditions

13.2.1    The existing environment of the study area for the overall development and Chok Ko Wan Link Road (CKWLR) is rural in nature with significant intrusions along the north coast in the form of the North Lantau Highway and Lantau Airport Railway (NLH/LAR). Landscape elements consist of natural and man-made coastlines, bay and coastal waters, undulating hills and upland areas associated with Fa Peng Teng, Tai Yam Teng and Tai Shan, and some small streams and associated valleys.

 

13.2.2    Upland areas are dominated by grassland, and denser shrubland and woodland exist in scattered groups along sheltered stream courses and the lower slopes, especially along the natural coastline. This is undisturbed mature vegetation.  Plantation woodland is also present along the NLH and LAR corridors, and along disturbed areas in Penny’s Bay.

 

13.2.3    The Study Area contains a substantial amount of high quality landscapes, particularly natural streams and topography.  However, forty percent of the coastline has already been disturbed or reclaimed.  Many of the streams have already been altered at their original outflow to the sea due to construction of the NLH corridor and existing development at Penny’s Bay. 

 

13.2.4    Sensitive receivers of visual impact include receivers in such far-reaching areas as Tuen Mun and Hong Kong Island, as well as closer areas such as Ma Wan.  Views for closer receivers such as from Ma Wan, Peng Chau and the ferry routes are dominated by the Lantau hillsides, but quality is reduced by existing reclamations and development along the coastlines.  The southern coastline includes a shipyard, a power station and former borrow area, all of which reduce the visual quality.

 

13.3          Impact on Landscape Elements

13.3.1    As much of the development is proposed on reclamation, the local natural landscape elements of vegetation cover, topography and natural streams will remain relatively undisturbed.  Impacts will be concentrated on the south and east Fa Peng Teng hillsides due to the construction of the Chok Ko Wan Link Road and the service reservoir. Additional smaller impacts will occur on the Yam O headland due to construction of the Road P1 tunnel portals.

 


13.3.2    These impacts will remain in the long-term as they will be caused by permanent works with associated major local earthworks. However, overall they are only considered moderately adverse, as the majority of landscape elements in the Study Area will remain undisturbed.  Additionally, the context of the future use of the site offers opportunities for quality design and mass landscaping, especially the Theme Park at Penny’s Bay, Water Recreation Centre, sloping seawall and low-rise development, all of which will blend with the natural hilly backdrop.  These will provide new positive landscape elements.  The proposed development is primarily for tourist and recreation uses, and there is likely to be opportunity for improving the local vegetation cover over a large area, albeit of a different type, particularly with respect to tree planting.

 

13.3.3    The main adverse impact is loss of the natural coastline. The reclamation works will affect an additional 6.7km of the natural coastline of Lantau and is considered to be a significant loss in both the short and long term. This will be replaced by a manmade reclamation edge.

 

13.4          Impacts to Landscape Character

13.4.1    Direct impacts to the existing landscape character zones are generally limited as much of the proposed works will be constructed on reclamation. The impacts are those caused by the works occurring on the Tsing Chau Tsai headland, i.e. the Chok Ko Wan Link Road and the service reservoir, and to the reclamation of Penny’s Bay.

 

13.4.2    The change of Penny’s Bay from a bay to a reclaimed area supporting recreational facilities will represent a major impact and change in character, extending and modifying the existing development already present on the western side of the bay.

 

13.4.3    On Fa Peng Teng impacts will locally change the existing landscape character from primarily natural hillsides and valleys with low levels of disturbance to those containing a major road and a reservoir, together with the associated slope cuttings. These impacts are, however, limited in their effects, with much of the hillsides remaining unaffected by the works and retaining their overall character.  At Ngong Shuen Au further local impacts on landscape character will result from slope cutting for the CKWLR and Road P2.

 

13.4.4    The Road P1 tunnel portals will also cause impacts due to disturbance to the local hillsides, however, this will be localised and the character of Yam O will be retained overall. Hillsides shall also be affected by the proposed reservoirs to a higher degree.

 

13.4.5    A more indirect impact to several of the landscape character zones is the loss of natural coastline. This occurs primarily in Penny’s Bay but also takes place along the southern side of Lantau at Fa Peng Teng, the Pa Tau Kwu headland and valley, and to a degree at Fa Peng and Sam Chuen (although these are more likely to be affected by Route 10). On the northern side the loss of natural coastline is less significant as the existing coastline is generally manmade by reclamation for the NLH corridor. Ng Kwu Leng and Yam O headlands will however lose natural coastline. Overall this represents a localised impact to landscape elements while the character of these areas is generally retained. Although the impacts will modify the existing character they should be considered in the context of the future use of the area, which provides the opportunity for a new landscape with high quality design in both built form and landscape.

13.4.6    The impacts are thus generally localised in their effects. However, the proposed development will cause a change to the overall character of this eastern end of Lantau. The hillside character will to a large degree be retained, however, this area of Lantau will change from being distinctly rural to a more sub-urban landscape, with its mix of development and natural undisturbed areas.

 

13.5          Visual Impact

13.5.1    Impacts will arise from the extension of the coastline along large areas of the Northshore site and the provision of development along coastal areas.  However, many of these areas are already reclaimed, in particular on the northern side, which is dominated by the NLH and LAR and associated slope cuttings.  The development itself will offer appealing views, and will also provide the opportunity to create a new character to the northern coastal zone by providing a landscaped screen and buffer to the currently poor visual quality transport corridor. Proposed reservoirs at Yam O shall however reduce visual quality in the Yam O Tuk area.

 

13.5.2    On the southern side the impacts are likely to be more severe overall as the change in character will be from the current bay, which has limited disturbance, to a large extent of reclamation, which will be developed. The impact will be a major change of character, yet also provides opportunity to create positive visual features of the area.

 

13.6          mITIGATION mEASURES

13.6.1    Mitigation measures are proposed for the operation phase.  Careful design and landscaping of cut slopes will be done to minimise the area of cutting and produce naturalistic contours with vertical elements of landscaping.  Shotcrete use will be minimised.  Design of highway and road structures will also be done to minimise impacts, including careful landscaping and tall planting to reduce the apparent height of viaduct structures, avoidance of lower maintenance roads, and the design/placement of columns and signage to create single design themes and avoid screening key views.  Lighting for highways is recommended to be full cut-off, and hoods and cowling will be used as necessary to avoid light spillage.  Tall pole floodlights will also be avoided.  Planting to all disturbed areas and roadsides is an important mitigation for both landscape and visual impacts.  Natural coastline can be preserved by the provision of a drainage channel along the west coast of Penny’s Bay.

 

13.6.2    Mitigation at the construction phase will include use of hoardings as appropriate, minimisation of cut slopes, retention of existing vegetation, and re-use of top soils.

 

13.7          Residual Impact and Acceptability of Impact

13.7.1    The main severe adverse impact to landscape elements overall is likely to occur due to the loss of bay and coastal waters and the loss of approximately 6.7 km of natural coastline as a result of the reclamation.  Permanent and irreversible impacts will also result from CKWLR, the service reservoirs, and Road P1 tunnel portals, and though these are major localised impacts they are not as significant in the context of overall Lantau development.  Vegetation cover will be disturbed though this will be predominantly grassland and shrubland, with a small loss of woodland due to the CKWLR, but the development provides opportunity for extensive additional planting, thus enhancing the existing vegetation cover.

 

13.7.2    Landscape character changes are localised impacts due to the provision of roads, as well as the provision of a positive new landscape character in the form of the new Theme Park development.  Overall existing character of Northshore Lantau will change from a rural hillside area to a more suburban developed area with predominantly undisturbed hills rising as a backdrop.

 

13.7.3    Visual residual impacts are mainly the local disturbance caused by introduction of the CKWLR and service reservoir with associated slope cuttings.  The introduction of the new developments will create a new visually interesting landscape in Northshore Lantau.

 

13.7.4    In accordance with Annex 10 of the Technical Memorandum the landscape and visual impact is considered acceptable with mitigation.