TABLE OF CONTENTS

 

 

1    INTRODUCTION

Project Background

Purpose of the EIA Study

Objectives of the EIA Study

EIA Study Area and Scope

Report Structure

Review of Previous Study

 

2    PROJECT DESCRIPTION

Existing Road Networks in West Kowloon

The Need of the Project

Proposed Road Works

Consideration of Alternative Schemes

Construction Methods and Engineering Requirements

Works Programme

Concurrent Projects

 

3    NOISE

Introduction

Environmental Legislation, Standards and Guidelines

Description of the Environment

Noise Sensitive Receivers

Assessment Methodology

Identification of Environmental Impacts

Prediction and Evaluation of Environmental Impacts

Mitigation of Adverse Environmental Impacts

Evaluation of Residual Impacts

Cumulative Construction Noise Impact

Environmental Monitoring and Audit

Conclusion5

 

4    AIR QUALITY

Introduction

Environmental Legislation, Standards and Guidelines

Description of the Environment

Air Sensitive Receivers

Potential Sources of Impact

Assessment Methodology

Prediction and Evaluation of Impacts

Mitigation of Adverse Environmental Impacts

Evaluation of Residual Impacts

Environmental Monitoring and Audit Requirements

Conclusion

 

5    WATER QUALITY

Introduction

Environmental Legislation, Standards and Guidelines

Identification of Water Sensitive Receivers

Description of the Environment

Assessment Approach and Methodology

Identification of Potential Impacts

Cumulative Impacts from Concurrent Projects

Prediction and Evaluation of Impacts

Recommended Water Quality Mitigation Measures

Evaluation of Residual Impacts

Environmental Monitoring and Audit Requirements

Conclusion

 

6    WASTE MANAGEMENT

Introduction

Environmental Legislation

Environmental Guidelines

Assessment Approach and Methodology

Identification of Waste Sources during Construction Phase

Evaluation of Waste Impacts

Mitigation of Adverse Environmental Impacts

Impacts Caused by Handling, Collection and Disposal of Waste

Evaluation of Residual Impacts

Land Contamination

Environmental Monitoring and Audit Requirements

Conclusion

 

7    LANDSCAPE AND VISUAL IMPACT

Introduction

Environmental Legislation, Standards and Guidelines

Assessment Methodology

Scope and Content of the Study

Review of Planning and Development Control Framework

Baseline Study

Landscape Impact Assessment

Landscape and Visual Mitigation Measures

Visual Impact Assessment

Residual Impacts

Cumulative Impacts

Conclusion

 

8    ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

Introduction

Noise

Air Quality

Water Quality

Waste Management

Landscape and Visual Impact

 

9    CONCLUSION

Introduction

Environmental Outcomes

Principal Findings of the EIA Study

Environmental Monitoring and Audit

Overall Conclusion

 

10   IMPLEMENTATION SCHEDULE OF THE RECOMMENDED MITIGATION MEASURES

 

 

List of Tables

 

Table 2.1           Major Concurrent Projects

Table 3.1           Construction Noise Criteria for Activity other than Percussive Piling

Table 3.2           Construction Noise Criteria for SPME

Table 3.3           Representative Noise Sensitive Receivers

Table 3.4           Summary of Unmitigated Construction Noise Levels

Table 3.5           Quiet PME Recommended for Adoption during Construction Phase

Table 3.6           Summary of Mitigated Construction Noise Levels

Table 3.7           Summary of Cumulative Construction Noise Levels

Table 4.1           Hong Kong Air Quality Objectives

Table 4.2           Tunnel Air Quality Guidelines (TAQG)

Table 4.3           Annual Average Concentrations of Pollutants in the Latest Five Years (Year 2003 - 2007) at Sham Shui Po Air Quality Monitoring Station

Table 4.4           Representative Air Sensitive Receivers

Table 4.5           Summary of Interfacing Projects

Table 4.6           Emission Factors for Dusty Construction Activities for Proposed Roads/Underpasses under this Project

Table 4.7           Emission Factors for Dusty Construction Activities at West Kowloon Works Area (for XRL Project)

Table 4.8           Vehicle Classes in EMFAC-HK Model

Table 4.9           NOx Emission Factors for Year 2015 for Different Vehicle Classes under peak hour flow speed (EMFAC-HK)

Table 4.10         RSP Emission Factors for Year 2015 for Different Vehicle Classes under peak hour flow speed (EMFAC-HK)

Table 4.11         NOx and RSP Emission Factors for Year 2015 for Different Vehicle Classes under congested traffic condition (only for 50kph roads without cold start) (EMFAC-HK)

Table 4.12         Predicted Cumulative Maximum Hourly Average TSP Concentrations at Representative Air Sensitive Receivers

Table 4.13         Predicted Cumulative Maximum 24-Hour Average TSP Concentrations at Representative Air Sensitive Receivers

Table 4.14         Predicted Contribution to Annual Average TSP Concentrations at Representative Air Sensitive Receivers from the Construction Activities

Table 4.15         Predicted Cumulative Maximum Hourly and Daily Average Air Pollutants Concentrations at Representative Air Sensitive Receivers

Table 4.16         Predicted Contribution to Annual Air Pollutants Concentrations at Representative Air Sensitive Receivers

Table 5.1           Summary of Water Quality Objectives for Victoria Harbour (Phase 2) WCZ

Table 5.2           Baseline Marine Water Quality Condition for Victoria Harbour WCZ

Table 6.1           Identification of Waste Types and Sources during Construction Phase of the Project

Table 6.2           Annual Generation of C&D Materials

Table 6.3           Quantity of Materials Supplied by the Project and Required by HZMB

Table 6.4           Quantity and Quality of C&D Materials Disposed of in the Project

Table 6.5           Summary of Waste Handling Methods and Disposal Outlets

Table 6.6           Review of Historical Aerial Photographs

Table 7.1           Relationship between Receptor Sensitivity and Impact Magnitude in Defining Impact Significance

Table 7.2           Visual Sensitive Receivers (VSRs) and their Sensitivity to Change

Table 7.3           Significant Landscape Impacts due to Proposed Works during Construction and Operation Phase

Table 7.4           Proposed Landscape and Visual Mitigation Measures for Construction Phase

Table 7.5           Proposed Landscape and Visual Mitigation Measures for Operation Phase

Table 7.6           Significance of Landscape Impacts during the Construction and Operation Phases

Table 7.7           Visual Sensitive Receivers (VSRs) and their Magnitude of Impacts

Table 7.8           Significance of Visual Impacts during the Construction and Operation Phases

Table 9.1.......... Summary of Key Environmental Outcomes / Benefits

Table 10.1........ Implementation Schedule for Noise Control

Table 10.2........ Implementation Schedule for Air Quality Control

Table 10.3........ Implementation Schedule for Water Quality Control

Table 10.4........ Implementation Schedule for Waste Management

Table 10.5........ Implementation Schedule for Landscape and Visual

 

 

List of Appendices

 

Appendix 2.1        Tentative Construction Programme

Appendix 3.1        Photographs of Representative Noise Sensitive Receivers

Appendix 3.2        Powered Mechanical Equipment (PME) for Construction Tasks During Normal Daytime Working Hours (Without Mitigation Measures)

Appendix 3.3        Agreement on Construction Plant Inventory

Appendix 3.4        Projected Traffic Data for Year 2009

Appendix 3.5        Projected Traffic Data for Year 2030

Appendix 3.6        Agreement Letter from Transport Department on Projected Traffic Data for Year 2009 and 2030

Appendix 3.7        Noise Assessment of Underpass Portals and Openings

Appendix 3.8        Sample Calculation of Unmitigated Construction Noise Levels

Appendix 3.9        Prevailing and Unmitigated Road Traffic Noise Levels at Representative Noise Sensitive Receivers

Appendix 3.10      Sample Output File for Road Traffic Noise Model

Appendix 3.11       Road-plots of Road Traffic Noise Model

Appendix 3.12      Powered Mechanical Equipment (PME) for Construction Tasks During Normal Daytime Working Hours (With Mitigation Measures)

Appendix 3.13      Sample Calculation of Mitigated Construction Noise Levels

Appendix 3.14      Predicted Road Traffic Noise Levels at Representative Noise Sensitive Receivers in Year 2030 (With Noise Screening Structures and Low Noise Road Surfacing)

Appendix 3.15      Predicted Road Traffic Noise Levels at Representative Noise Sensitive Receivers in Year 2030 (With Noise Screening Structures, Low Noise Road Surfacing and Sound-Absorbing Materials for Underpass)

Appendix 3.16      Number of Residential Dwellings/Classrooms Protected By and Benefited From Noise Mitigation Measures

Appendix 3.17      Eligibility Assessment for Indirect Technical Remedies

Appendix 3.18      Construction Noise Impact of Express Rail Link on Identified Noise Sensitive Receivers

Appendix 3.19      Cumulative Construction Noise Assessment

Appendix 4.1        Calculations of Construction Dust Emission Rates

Appendix 4.2        Projected 2030 Peak Hour Traffic Flows and Vehicle Compositions

Appendix 4.3        Adjusted Exhaust Technology Fractions

Appendix 4.4        2015 Vehicle Population

Appendix 4.5        Adopted Daily Trips and Vehicle-Mile-Travelled (VMT) in Year 2030

Appendix 4.6        Classification of Road Types

Appendix 4.7        Summary Results of Comparing the Total Emission by Using Peak Hour Flow Speed and Design Road Speed

Appendix 4.8        Summary Results of Comparing the Total Emission from Year 2015 to 2030

Appendix 4.9        The Calculation of Maximum Fleet Vehicle Emission

Appendix 4.10      Calculation of Emission Rates of Open Road Sections

Appendix 4.11       Calculation of Portal Emissions and Emission of Central Kowloon Route Ventilation Building

Appendix 4.11A    Assumptions for Future Background Concentration Extracted from the PATH Model

Appendix 4.12      Designated Assessment Points for Proposed Underpasses Air Quality

Appendix 4.12A    Detailed Calculations of In-Tunnel Air Quality for Proposed One Way Underpass at Austin Road West/Lin Cheung Road (North Bound)

Appendix 4.12B    Detailed Calculations of In-Tunnel Air Quality for Proposed One Way Underpass at Austin Road West/Lin Cheung Road (South Bound)

Appendix 4.12C    Detailed Calculations of In-Tunnel Air Quality for Proposed Underpass at Austin Road West (West Bound)

Appendix 4.12D    Detailed Calculations of In-Tunnel Air Quality for Proposed Underpass at Austin Road West (East Bound)

Appendix 4.12E    Detailed Calculations of In-Tunnel Air Quality for Proposed Underpass at Lin Cheung (North Bound)

Appendix 4.12F    Detailed Calculations of In-Tunnel Air Quality for Proposed Underpass at Lin Cheung (South Bound)

Appendix 4.12G    Detailed Calculations of In-Tunnel Air Quality for Proposed Underpass at Austin Road West (East Bound)

Appendix 4.12H    Detailed Calculations of In-Tunnel Air Quality for Proposed Underpass at Austin Road West (West Bound)

Appendix 4.12I      Detailed Calculations of In-Tunnel Air Quality for Proposed Landscape Deck at Lin Cheung Road

Appendix 6.1              Aerial Photograph Reviewed

Appendix 6.2        Photo-documentation for Site Inspection