Gifford Street Railway Embankment and 351 Caledonian Road London N1 1DW February 2014 Volume 1: Environment Statement Main Text GL Hearn PREPARED BY GL Hearn In association with TTP Consulting Cass Allen WSP Standerwick Land Design AOC Archaeology Conisbee RSK © GL Hearn 2014 Further copies of this document and all associated material can be purchased from: GL Hearn, Queen Square House, 18-21 Queen Square, Bristol, BS1 4NH (Tel: 0117 203 3300) or email [email protected] Landscape and Visual Impact Assessment (separate volume) Standerwick Land Design Prices Environmental Statement (Main Text and Appendices): £150 Landscape and Visual Impact Assessment Volume: £100 Non-Technical Summary (individual copies): no charge Contents 1 2 1 INTRODUCTION 10 3 2 DESCRIPTION OF THE PROPOSED DEVELOPMENT 11 4 3 PROJECT ALTERNATIVES 15 5 4 CUMULATIVE ENVIRONMENTAL IMPACTS 16 6 5 CONSTRUCTING THE DEVELOPMENT 17 7 6 IMPACT PREDICTION METHODOLOGY 21 8 7 EFFECTS ON THE LOCAL ENVIRONMENT 22 9 7.1 Traffic and Transport 22 10 Introduction 22 11 Significance Criteria 24 12 Baseline Conditions 26 13 Mitigation Incorporated into the Design of the Development 29 14 Assessment of Effects and Significance 29 15 Additional Mitigation Measures 32 16 Residual Effects and Conclusions 33 17 7.2 Socio-Economic Effects 36 18 Introduction 36 19 Legislation and Planning Policy 36 20 Assessment Methodology and Significance Criteria 43 21 Potential Effects 47 22 Mitigation Measures 50 23 Cumulative Impacts 50 24 7.3 Noise and Vibration 53 25 Introduction 53 26 Methodology 54 27 Existing Conditions 59 28 Effects During Construction 63 29 Mitigation 64 30 Effects on Operation 66 31 Mitigation 72 32 Residual Effects 73 33 7.4 Air Quality 76 34 Introduction 76 35 Legislation, Policy and Guidance 77 36 Methodology 83 37 Existing Conditions 96 38 Effects During Construction 99 39 Mitigation 102 40 Effects on Operation 103 41 Mitigation 107 42 Residual Effects 108 Environmental Statement February 2014 INTRODUCTION Telford Homes Plc Gifford Street Embankment and 351 Caledonian Road, Islington 1 7.5 Ecology and Nature Conservation 110 2 Introduction 110 3 Methodology 114 4 Existing Conditions 118 5 Effects During Construction 124 6 Summary 125 7 Mitigation 129 8 Effects on Operation 129 9 Mitigation 131 10 Residual Effects 133 11 Summary of Residual Effects 136 12 7.6 Cultural Heritage 141 13 Introduction 141 14 Methodology 141 15 Existing Conditions 147 16 Effects During Construction 150 17 Mitigation 150 18 Effects on Operation 150 19 Mitigation 151 20 Residual Effects 152 21 References 152 22 7.7 Surface Water Drainage and Flooding 155 23 Introduction 155 24 Methodology 157 25 Existing Conditions 159 26 Flood Risk 160 27 Predicted Impacts During Construction 162 28 Predicted Impacts During Operation 163 29 Proposed Mitigation During Construction 163 30 Proposed Mitigation During Operation 163 31 Residual Effects 164 32 Interaction Between Effects 165 33 Summary 165 34 7.8 Ground Conditions and Contamination 169 35 Introduction 169 36 Methodology 169 37 Existing Conditions 169 38 Effects During Construction 171 39 Mitigation 172 40 Effects on Operation 173 41 Mitigation 173 42 Residual Effects 173 43 7.9 Daylighting and Sunlighting 175 44 Introduction 175 45 Methodology 175 46 Existing Conditions 175 47 Effects During Construction 175 48 Mitigation 176 49 Effects on Operation 176 50 Mitigation 176 51 Residual Effects 176 GL Hearn Page 4 of 178 Environmental Statement February 2014 INTRODUCTION Telford Homes Plc Gifford Street Embankment and 351 Caledonian Road, Islington 1 8 CONCLUSIONS 178 2 List of Tables 3 Table INT1: Landscape Proposals by Area 13 4 Table INT2: Construction Activity by Phase 19 5 Table INT3: Magnitude of Significance 21 6 Table INT4: Significance Description 21 7 Table TTP1: Table 6.3 of the London Plan (Cycle Parking Minimum Standards) 23 8 Table TTP2: 2012 Baseline Traffic (Source: DfT) 27 9 Table TTP3: Proposed Development Daily Person Trips 31 10 Table TTP4: Impact Summary Table 35 11 Table SEE1: Magnitude of Significance 44 12 Table SEE2: Significance Description 44 13 Table SEE3: Closest Healthcare Facilities 46 14 Table SEE4: Closest Schools to the Site 46 15 Table SEE5: Predicted Direct Employment for the Two Year Construction Period 47 16 Table SEE6: Predicted Indirect and Induced Construction Employment 48 17 Table SEE7: Predicted Job Generation from the Proposals 48 18 Table SEE8: Impact Summary Table 52 19 Table NVB1: BS8233:1999 Noise Criteria for New Residential Development 55 20 Table NVB2: BS6472-1:2008 Vibration Criteria 56 21 Table NVB3: Classification of Magnitude of Noise Effects in the Short-Term 57 22 Table NVB4: Guideline Construction Noise Limits 58 23 Table NVB5: Guideline Construction Vibration Limits 58 24 Table NVB6: Noise Survey Equipment Details 59 25 Table NVB7: Average Noise Level Summary 60 26 Table NVB8: CRTN Measurement Summary – Position M6 61 27 Table NVB9: Unattended Noise Level Summary 61 28 Table NVB10: Vibration Meter Details 62 29 Table NVB11: Vibration Data Summary 62 30 Table NVB12: Ground-borne Noise Meter Details 63 31 Table NVB13: Ground-Borne Vibration Assessment Summary 67 32 Table NVB14: Typical Glazing / Ventilation Acoustic Performance 68 33 Table NVB15: Ground-Borne Vibration Assessment Summary 69 GL Hearn Page 5 of 178 Environmental Statement February 2014 INTRODUCTION Telford Homes Plc Gifford Street Embankment and 351 Caledonian Road, Islington 1 Table NVB16: Ground-Borne Noise Prediction Summary 70 2 Table NVB17: Impact Summary Table 75 3 Table AQT1: Summary of Consultation Undertaken 83 4 Table AQT2: Stack & Emissions Parameters for the Proposed CHPs and Boilers 89 5 Table AQT3: Significance of Impacts of Each Activity Prior to Mitigation 92 6 Table AQT4: Magnitude of Impact 92 7 Table AQT5: Significance of Impacts Matrix 93 8 Table AQT6: Summary of method for Assessing the Significance of Air Quality in the Planning 9 Process 94 10 Table AQT7: London Councils Air Pollution Exposure Criteria 94 11 Table AQT8: Examples of Receptor Sensitivity to Construction Phase Impacts 95 12 Table AQT9: Examples of Relevant Public Exposure Sensitive Locations 96 3 13 Table AQT10: Estimated Background Concentrations used in the Assessment (µg/m ) 97 14 Table AQT11: Description of Local Authority Diffusion Tube Monitoring Site 98 15 Table AQT12: Diffusion Tube Monitoring - Annual Mean NO2 Concentrations 98 16 Table AQT13: Types of Receptors Modelled for Public Exposure 99 17 Table AQT14: Sensitivity of the Study Area 100 18 Table AQT15: Summary Risk Impacts for Each Activity 101 19 Table AQT16: Construction Phase Summary Significance Table Prior to Mitigation 102 20 Table AQT17: Predicted Annual Mean NO2 Concentration at Existing Receptors in DM and DS 21 Scenarios 104 22 Table AQT18: Predicted NO2 Significance Impact at Existing Receptors in DM and DS in relation to 23 the operation phase as per EPUK criteria 104 24 Table AQT19: Predicted APEC levels at new receptor locations 105 25 Table AQT20: Predicted Annual Mean PM10 Concentration at Existing Receptors in DM and DS 26 Scenarios 106 27 Table AQT21: Predicted PM10 Significance Effect at Existing Receptors in DM and DS in relation to 28 the operation phase as per EPUK criteria 106 29 Table AQT22: Predicted APEC levels at new receptor locations 107 30 Table AQT23: Construction Phase Summary Significance Table post Mitigation 108 31 Table AQT24: Impact Summary Table 109 32 Table NCS1: Construction Phases (refer to SLD drawing Caledonian Road Construction Phases to 33 minimise impact on SINC) 125 34 Table NCS2: Summary of Predicted Impact and Proposed Mitigation 137 35 Table NCS3: Impact Summary Table 140 36 Table CLT1: Criteria for Classifying Magnitude of Physical Impact 142 37 Table CLT2: Method of Rating Significance of Impact on Heritage Assets by the Proposed 38 Development 143 GL Hearn Page 6 of 178 Environmental Statement February 2014 INTRODUCTION Telford Homes Plc Gifford Street Embankment and 351 Caledonian Road, Islington 1 Table CLT3: Criteria for Establishing Relative Visual Sensitivity 143 2 Table CLT4: Criteria for Classifying Magnitude of Visual Impact 144 3 Table CLT5: Significance of the Effects of Visual Impacts on the Cultural Value of Monuments 145 4 Table CLT6: Impact Summary Table 153 5 Table SWD1: Significance Criteria for Drainage Flood Risk Effects 158 6 Table SWD2: Impact Summary Table 167 7 Table GCC1: Impact Summary Table 174 8 Table DSO1: Impact Summary Table 177 9 10 List of Figures 11 12 Figure INT1: Construction Phasing Plan with Time Frames for Completion of Works 19 13 Figure NVB1: Annotated Aerial Photo 54 14 Figure NVB2: Noise Survey Measurement Positions 60 15 Figure NCS1: Protected Species Data 118 16 Figure NCS2: London Borough of Islington Planning Policies 119 17 Figure GCC1: Herts and Essex Contamination Testing Summary 171 18 List of Appendices (Separately Bound) 19 20 Appendix INT1: Screening and Scoping Correspondence 21 Appendix INT2: Health Impact Assessment 22 Appendix INT3: Waste Management Plan 23 Appendix INT4: Construction Traffic Management Plan 24 Appendix TTP1: Transport Assessment 25 Appendix NVB1: Glossary 26 Appendix NVB2: Plans 27 Appendix NVB3: Noise Survey Data 28 Appendix NVB4: Vibration Survey Data 29 Appendix NVB5: Cadna A Modelling Printouts 30 Appendix NVB6: Traffic Data and Calculation Summary 31 Appendix AQT1: Glossary 32 Appendix AQT2: EU Limit Values and UK Objectives 33 Appendix AQT3: Traffic Data 34 Appendix AQT4: Summary of IAQM Construction Phase Impact Assessment Procedure