M4 East EIS Volume 2C App I Part 01 Noise and Vibration

M4 East EIS Volume 2C App I Part 01 Noise and Vibration (pdf)

Contents Pages
Executive Summary
Introduction xiii
Existing environment xiii
Relevant guidelines xiv
Operational road traffic noise assessment xiv
Ventilation facilities noise impact assessment xv
Assessment of construction noise – on site works xv
Assessment of construction noise – public road network xvi
Construction ground-borne noise assessment xvi
Construction vibration assessment xvii
1 Introduction 1
1.1 Overview of the project 1
1.2 Project location 1
1.3 Secretary’s environmental assessment requirements 4
1.4 Purpose of this report 7
1.5 Structure of this report 7
1.6 Relevant guidelines 7
1.7 Terminology 7
2 Proposed project 8
2.1 Project features 8
2.2 Construction activities 11
2.2.1 Overview 11
2.2.2 Construction footprint 11
2.2.3 Construction program 12
2.3 Noise and vibration specific aspects 14
3 Description of the existing environment 15
3.1 Existing environmental noise 15
3.2 Identification of noise and vibration sensitive receivers 19
3.3 Ambient noise surveys and monitoring locations 21
3.4 Unattended noise monitoring 22
3.4.1 Methodology 22
3.4.2 Noise monitoring results 22
3.5 Attended airborne noise 23
3.5.1 Methodology 23
3.5.2 Noise measurement results 23
4 Operational noise goals and noise mitigation guidance 26
4.1 Introduction 26
4.2 Operational noise metrics 26
4.3 Noise Criteria Guideline 26
4.4 Noise assessment criteria 27
4.4.1 Criteria by Road Type 27
4.5 Potential road traffic noise impacts on the surrounding road network 29
4.6 Sleep disturbance 30
5 Key assumptions for prediction of airborne noise during operation 31
5.1 Assessment scenarios 31
5.2 Road noise prediction algorithms 31
5.3 Modelling of the road alignment 32
5.4 Noise model validation 32
5.4.1 Overview 32
5.4.2 Existing surface 33
5.4.3 Validation traffic data 33
5.4.4 Step 1: Check free flowing traffic noise levels 33
5.4.5 Step 2: Potential congestion correction effects 33
5.4.6 Step 3: Detailed review of traffic speeds in traffic counts 33
5.4.7 Noise Model Validation Corrections 33
5.4.8 Model validation summary 36
5.5 Modelling of pavement surfaces 37
5.6 Modelling of traffic data 37
5.7 Modelling of congestion 38
5.8 Modelling of smart motorway ramps 38
5.9 Modelling of Tunnel and Tunnel Portals 38
5.10 Modelling of noise barriers – Build scenario without mitigation 38
5.11 Roads modelled in the assessment 39
5.12 Assessed receiver facades 40
5.13 Receiver counts 40
5.14 Highly urban area assessment boundary 41
5.15 Summary of noise modelling parameters 42
6 Process for feasible and reasonable operational noise mitigation 43
6.1 Noise Mitigation Guideline 43
6.2 Guidance for consideration of reasonable additional noise mitigation 43
6.3 Procedure overview 44
6.4 Definition of feasible and reasonable 44
6.5 Road design and traffic management 45
7 Operational road traffic noise impact assessment overview 46
7.1 Operational noise impact without mitigation 46
7.2 Additional noise mitigation – low noise pavement 46
7.3 Additional noise mitigation – noise barriers 46
7.3.1 Assessment overview 46
7.3.2 NMG requirements 47
7.4 Receivers considered for property treatments 47
7.5 Architectural property treatments 48
7.6 Sensitivity analysis 48
7.7 Maximum noise levels 49
8 Operational road traffic noise impact assessment 50
8.1 Operational noise impacts without mitigation 50
8.1.1 Change in noise levels without mitigation 50
8.1.2 Receivers considered for additional noise mitigation 52
8.2 Additional noise mitigation – low noise pavement 55
8.3 Additional noise mitigation – noise barriers 55
8.4 Operational noise impacts with mitigation 61
8.4.1 Change in noise levels with mitigation 61
8.4.2 Receivers considered for at-property treatment 62
8.5 Discussion of at-property treatments 63
8.6 Sensitivity analysis 63
8.7 Maximum noise levels 64
9 Ventilation facilities noise impact assessment 67
9.1 Operational noise metrics 68
9.2 Ventilation facility noise criteria 68
9.2.1 INP criteria for intrusive noise 68
9.2.2 INP criteria for amenity 68
9.2.3 INP Modifying factor adjustments 69
9.2.4 Sleep disturbance 69
9.3 Sensitive receivers 69
9.4 Noise goal summary 73
9.5 Equipment data 73
9.5.1 Tunnel jet fans 73
9.5.2 Ventilation equipment 74
9.6 Modelling scenario 74
9.6.1 Tunnel jet fans 74
9.6.2 Ventilation equipment 74
9.7 Predicted noise impacts 74
9.8 Predicted modifying factors 75
9.9 Other facilities 75
10 Assessment of construction noise – on site works 76
10.1 Overview 76
10.2 Proposed construction activities 76
10.2.1 Proposed works 76
10.2.2 Construction hours 76
10.3 Construction noise metrics 77
10.4 Noise management levels for construction activity 77
10.4.1 Residential receivers 77
10.4.2 Other sensitive land uses 79
10.4.3 Commercial and industrial premises 80
10.4.4 Construction traffic noise 80
10.5 Overview of construction noise modelling 81
10.5.1 Construction equipment 81
10.5.2 Activity durations 85
10.6 Noise assessment at the nearest noise sensitive receivers 85
10.6.1 Predicted construction noise levels 85
10.6.2 Work area establishment (continues in part 2) 86

M4 East EIS Volume 2C App I Part 02 Noise and Vibration

M4 East EIS Volume 2C App I Part 02 Noise and Vibration (pdf)

Contents Pages
10.6.2 Work area establishment (continued from part 1) 87
10.6.3 Temporary road and intersection modifications 90
10.6.4 Construction ancillary facilities 93
10.6.5 Roads works 99
10.6.6 Tunnelling site operations 103
10.6.7 Demolition of acquisition properties 106
10.6.8 Ventilation facilities construction 109
10.6.9 Sleep disturbance 112
10.7 Cumulative noise impacts 112
10.8 Construction noise mitigation 113
10.8.1 Restriction of construction hours 113
10.8.2 Restriction of construction noise levels 114
10.8.3 Construction noise mitigation measures 116
10.8.4 General mitigation summary 120
10.8.5 Construction ancillary facilities mitigation summary 120
10.8.6 Construction environmental management plan 122
11 Assessment of construction noise – public road network 123
11.1 Construction road traffic noise goals 123
11.2 Construction traffic noise assessment 123
11.3 Proposed local road use 125
11.4 Mitigation and management measures 125
12 Construction ground-borne noise assessment 127
12.1 Ground-borne noise from tunnelling during roadheader activity 127
12.2 Ground-borne noise management levels 127
12.3 Ground-borne construction noise modelling 127
12.4 Excavation of main tunnels 128
12.5 Discussion 131
12.6 Rockbreaking and Blasting 131
12.7 Ground-borne Noise Mitigation 132
13 Construction vibration assessment 133
13.1 Vibration damage criteria overview 133
13.2 Vibration damage goals 133
13.2.1 Australian Standard AS 2187 and British Standard BS 7385 133
13.2.2 German Standard DIN 4150 134
13.3 Project vibration goals 135
13.4 Human comfort goals for construction vibration 136
13.4.1 Perception of vibration 136
13.4.2 Vibration Goals 136
13.5 Safe working distances for vibration intensive plant 137
13.6 Estimated working distances and vibration intensive plant 138
13.6.1 Cosmetic damage assessment summary 140
13.6.2 Human comfort vibration assessment summary 141
13.7 Cumulative vibration impacts 141
13.8 Blasting 141
13.8.1 Project blasting criteria (human comfort) 141
13.8.2 Project blasting criteria (control of damage) 142
13.8.3 Recommended blasting hours 142
13.8.4 Blasting assessment 142
13.8.5 Blasting recommendations 143
13.8.6 Other blasting methods 143
13.9 Vibration mitigation 144
14 Overall Impact Summary 146
14.1 NCA01 146
14.1.1 Operation 146
14.1.2 Construction 146
14.2 NCA02 147
14.2.1 Operation 147
14.2.2 Construction 147
14.3 NCA03 148
14.3.1 Operation 148
14.3.2 Construction 149
14.4 NCA04 149
14.4.1 Operation 149
14.4.2 Construction 150
14.5 NCA05 150
14.5.1 Operation 150
14.5.2 Construction 151
14.6 NCA06 151
14.6.1 Operation 151
14.6.2 Construction 152
14.7 NCA07 153
14.7.1 Operation 153
14.7.2 Construction 153
14.8 NCA08 and NCA09 154
14.8.1 Operation 154
14.8.2 Construction 155
14.9 NCA10 155
14.9.1 Operation 155
14.9.2 Construction 155
14.10 NCA11 156
14.10.1 Operation 156
14.10.2 Construction 156
14.11 NCA12 157
14.11.1 Operation 157
14.11.2 Construction 157
14.12 NCA13 158
14.12.1 Operation 158
14.12.2 Construction 158
14.13 NCA14 159
14.13.1 Operation 159
14.13.2 Construction 159
14.14 NCA15 160
14.14.1 Operation 160
14.14.2 Construction 161
14.15 NCA16 161
14.15.1 Operation 161
14.15.2 Construction 162
14.16 NCA17 162
14.16.1 Operation 162
14.16.2 Construction 163
14.17 NCA18 164
14.17.1 Operation 164
14.17.2 Construction 164
14.18 NCA19 165
14.18.1 Operation 165
14.18.2 Construction 165
14.19 NCA20 166
14.19.1 Operation 166
14.19.2 Construction 167
14.20 NCA21 167
14.20.1 Operation 167
14.20.2 Construction 168
15 Recommendations for further analysis at detailed design 169
15.1 Operational road traffic noise 169
15.2 Operational ventilation facilities 169
15.3 Construction noise and vibration 169
16 References 171
Appendix A … Acoustic terminology A
Appendix B … Site plan and noise catchment areas (continues in part 3) B

M4 East EIS Volume 2C App I Part 06 Noise and Vibration

M4 East EIS Volume 2C App I Part 06 Noise and Vibration (pdf)

Contents Pages
Appendix E … Operational noise criteria at sensitive receivers (continued from part 5) E
Appendix F1 … Traffic data, validation F1
Appendix F2 … Traffic data, assessment F2
Appendix G … Highly urban area boundary G
Appendix H … Residential noise predictions, No Build (continues in part 7) H