Main Volume 1A Part 1

Main Volume 1A Part 1 (pdf)

Contents Pages
Executive summary
Certification
Glossary and abbreviations
1 Introduction 1-1
1.1 Project overview 1-1
1.2 Project location 1-4
1.3 Project features 1-4
1.4 Benefits of the project 1-7
1.5 Purpose of this environmental impact statement 1-8
1.6 Structure of this environmental impact statement 1-8
1.7 Directions used in this environmental impact statement 1-9
2 Assessment process 2-1
2.1 Approval framework 2-1
2.1.1 Environmental Planning and Assessment Act 1979 2-1
2.1.2 Environmental Planning and Assessment Regulation 2000 2-1
2.2 Environmental planning instruments 2-3
2.2.1 State environmental planning policies 2-3
2.2.2 Local environmental plans 2-3
2.3 Other legislation 2-4
2.3.1 NSW legislation 2-4
2.3.2 Commonwealth legislation 2-5
3 Strategic context and project need 3-1
3.1 Strategic planning and policy framework 3-1
3.1.1 NSW 2021: A Plan to Make NSW Number One 3-1
3.1.2 State Infrastructure Strategy 3-2
3.1.3 NSW Long Term Transport Master Plan 3-3
3.1.4 Mode specific transport strategies 3-4
3.1.5 A Plan for Growing Sydney 3-6
3.1.6 NSW Freight and Ports Strategy 3-8
3.1.7 Parramatta Road Urban Transformation Program 3-8
3.1.8 WestConnex Business Case 3-9
3.1.9 Our Cities Our Future – A National Urban Policy 3-10
3.1.10 Alignment with other national strategic planning documents 3-11
3.2 Why the project is needed 3-11
3.2.1 Regional context 3-11
3.2.2 Existing road network conditions 3-12
3.2.3 Job creation in Western Sydney 3-13
3.2.4 Freight, commercial and business services 3-14
3.2.5 Parramatta Road urban renewal 3-15
3.2.6 Transport improvements in the Parramatta Road corridor 3-15
3.3 Project objectives 3-16
3.4 Summary 3-17
4 Project development and alternatives 4-1
4.1 History of the M4 East and WestConnex 4-1
4.1.2 M5 East Motorway 4-3
4.1.3 Connection between the M4 and M5 East 4-3
4.1.4 WestConnex and M4 East 4-3
4.2 Strategic alternatives 4-4
4.2.1 Alternative 1 – Base case or ‘do nothing/do minimum’ 4-5
4.2.2 Alternative 2 – Improvements to the existing arterial road network 4-5
4.2.3 Alternative 3 – Investment in public transport and rail freight improvements 4-7
4.2.4 Alternative 4 – Demand management 4-10
4.2.5 Alternative 5 – Extension of the M4 as part of the WestConnex scheme 4-10
4.2.6 Preferred strategic alternative 4-11
4.3 Motorway options 4-12
4.3.1 Earlier options development 4-12
4.3.2 Tunnel corridor options 4-15
4.3.3 Number of lanes within tunnels 4-15
4.3.4 Preferred motorway option 4-16
4.4 Interchange options 4-16
4.4.1 Western tunnel portals 4-16
4.4.2 M4 westbound access options 4-19
4.4.3 Concord interchange 4-20
4.4.4 Wattle Street (City West Link) interchange 4-23
4.4.5 Parramatta Road interchange 4-25
4.5 Design development of ancillary facilities 4-27
4.5.1 Ventilation system design 4-27
4.5.2 Ventilation facility locations 4-29
4.5.3 Emergency smoke exhaust facility 4-31
4.5.4 Fresh air supply facility 4-31
4.5.5 Motorway control centre 4-32
4.6 Construction methodology development 4-33
4.6.1 Tunnel construction methods 4-33
4.6.2 Spoil disposal 4-34
5 Project description 5-1
5.1 The project 5-2
5.2 Design criteria 5-5
5.2.1 Design standards 5-5
5.2.2 Urban design principles and objectives 5-5
5.2.3 Landscape framework 5-6
5.3 Project footprint 5-6
5.4 Tunnels (continues in part 2) 5-7
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