Emu Plains to Lapstone

EIS 340 AA052343 F4-Western Freeway: section : Emu Plains to Lapstone: environmental impact statement NS DEPT PRIMARI IRUSTR1ES AAO5 2343 r.]IrIi ill 111T11*1111(i1I:1] STATEMENT I I Prepared by Sinclair Knight & Partners Pty Ltd I I I I I I F4 - WESTERN FREEWAY I I Section: Ernu Plains to Lapstone I I 1 I CEAT2T CF I I L I I ENVIRONMENTAL IMPACT 1 STATEM ENT I ERRATA The vehicle trips scales for Exhibits 4.3 and 4.4 have been interchanged. I The scale for Exhibit 4.3 is on Exhibit 4.4 and vice versa. The Legend for Exhibit 5.4 should have noise monitoring sites 1 depicted as dots with black lines representing noise contours. I Prepared by Sinclair Knight & Partners Pty Ltd I 1 I I F4 - WESTERN FREEWAY I I Section: Emu Plains to Lapstone I I I I I ENVIRONMENTAL IMPACT I STATEM ENT I I I This is to certify that this Environmental Impact Statement has been prepared in accordance with clauses 57 and 58 of the I Environmental Planning and Assessment Regulation, 1980. I 'L" '~"-'L I Z R D Crooks I Manager- Environmental Services Sinclair Knight & Partners Pty Ltd L] 12 January 1987 I I TABLE OF CONTENTS I Page 1 i. ENVIRONMENTAL IMPACT STATEMENT SUMMARY 1 1.1 OBJECTIVES OF THE PROJECT 1 1.2 THE PROPOSED EXTENSION 1 1.3 INTERACTIONS WITH THE ENViRONMENT 2 1.3.1 Traffic 2 1.3.2 Access 3 I 1.3.3 Safety 3 1.3.4 Impacts on Business 4 1.3.5 Land Use & Zoning 4 1.3.6 Landscape Values 4 I 1.3.7 Noise Effects 4 1.3.8 Other Impacts 5 I 1.4 CONCLUSION 5 2. 1NTRODUCI1ON 7 2.1 PURPOSE AND SCOPE OF REPORT 7 ' 2.2 BACKGROUND TO AND OBJECTiVES OF THE PROPOSED DEVELOPMENT 7 2.3 RECENT HiSTORY OF THE PROPOSED DEVELOPMENT 9 2.4 STUDY APPROACH 9 2.5 STATUTORY REQUIREMENTS 10 3. PROPOSAL DESCRIPTION 12 I 3.1 FACTORS TAKEN INTO ACCOUNT IN DEVELOPING THE PROPOSAL 12 3.2 DESIGN STANDARDS 13 I 3.3 ROUTE DESCRIPTION 13 3.4 INTERCHANGES 15 3.4.1 Russell Street Interchange 15 3.4.2 Governors Drive Interchange 15 I 3.5 ROAD REARRANGEMENTS 16 3.6 CARRIAGEWAY DESiGN 16 3.7 EARTHWORKS 17 I 3.8 MAJOR BRIDGES 18 3.9 DRAINAGE WORKS 18 3.10 LIGHTING 19 I 3.11 SIGNPOSTING 19 3.12 LAND ACQUISITION 20 3.13 CONSTRUCTION 20 3.14 CONSTRUCTION SAFEGUARDS 22 I 3.14.1 Erosion and Sedimentation Control 22 3.14.2 Restoration and Landscape Treatments 23 I I TABLE OF CONTENTS continued Page I 4. TRAFFIC IMPACTS AND ECONOMIC ASSESSMENT 24 4.1 EXISTING SITUATION 25 4.1.1 Existing Origin Destination Pattern 25 4.1.2 Traffic Volumes 27 4.1.3 Travel Times and Distances 27 I 4.1.4 Other Relevant Road Developments 28 4.2 IMPACT OF THE PROPOSED F4 EXTENSION 29 4.2.1 Accessibility 29 I 4.2.2 Growth in Travel Volumes 31 4.3 iMPACT ON MANAGEMENT OF OVERSIZE TRUCK LOADS 34 4.4 ECONOMIC ASSESSMENT 34 5. EXISTING ENVIRONMENT, ENVIRONMENTAL IMPACTS AND MITIGATING MEASURES 37 I 5.1 LOCAL ACCESS 37 5.1.1. Vehicular Access 37 5.1.2 Bicycle Access 39 I 5.1.3 Pedestrian Access 39 5.1.4 Access for Public Transport 40 5.2 SAFETY 41 I 5.3 IMPACTS ON BUSINESS 43 5.4 IMPACTS ON LAND ZONING AND LAND USE 44 5.4.1 Zoning 44 I 5.4.2 Land Use 46 5.5 VISUAL IMPACTS 47 5.6 HERITAGE 48 5.6.1 Transport Flistory 48 I 5.6.2 Archaeology 49 5.6.3 Natural Heritage 51 5.7 NOISE AND VIBRATION 51 ' 5.7.1 Noise 51 5.7.2 Vibration 58 5.8 VEGETATION 59 60 I 5.9 UTILITY INSTALLATIONS 5.10 OTHER IMPACTS 60 5.10.1 Water Quality 60 5.10.2 Air Quality 61 I 5.11 ENERGY STATEMENT 61 6. ALTERNATIVES TO THE PROPOSED DEVELOPMENT 62 INTRODUCTION 62 OPTION 1- ROAD OVER RAIL 63 6.16.2 6.3 OPTION 2- EXIT AND ENTRY RAMPS AT LAPSTONE 64 OPTION 3- EXIT RAMPS ONLY AT LAPSTONE 67 6.5 OPTION 4- DUAL CARRIAGEWAY OPTION 69 6.66.4 THE NO DEVELOPMENT OPTION 72 6.7 CONCLUSION 73 I TABLE OF CONTENTS continued Page 7. REFERENCES 74 LIST OF APPENDICES APPENDIX 1 DiRECTOR'S REQUIREMENTS APPENDIX 2 LIATSON WITH OTHER AUTHORITIES APPENDIX 3 STUDY PARTICIPANTS I I LIST OF TABLES I Page I TABLE 1.1 SUMMARY OF BENEFITS/DISBENEFITS 6 I TABLE 3.1 BRIDGE DIMENSIONS TABLE 4.1 TRAFFIC VOLUMES ON NEPEAN RIVER BRIDGES 28 I TABLE 4.2 ROUTE DISTANCES AND TRAVEL TIMES 29 TABLE 4.3 EFFECT OF F4 EXTENSION ON TRAVEL TIMES 30 - BLAXLAND/PENRITH I TABLE 4.4 EFFECT OF F4 EXTENSION ON TRAVEL TIMES 31 - BLAXLAND/F4 I TABLE 4.5 ROAD TRAFFIC VOLUMES (AADT) 33 TABLE 5.1 EXISTING NOISE LEVELS 52 I TABLE 5.2 PREDICTED LI0 (18-HOUR) NOISE LEVELS 54 TABLE 6.1 COST COMPARISON - PREFERRED SCHEME AND 67 I OPTION 2 ($M) I I I I I I I I I 1 I UST OF EXHIBITS EXHIBIT I.I. PROPOSED DEVELOPMENT EXHIBIT 2.1 METROPOLITAN FIREEWAY SYSTEM EXHIBIT 3.1 PROPOSED DEVELOPMENT EXHIBIT 3.2 LONGITUDINAL SECTION OF PROPOSED DEVELOPMENT EXHIBIT 3.3 INTERCHANGE DETAILS EXHIBIT 3.4 CARRIAGEWAY DETAILS EXHIBIT 3.5 RUSSELL STREET BRIDGE EXHIBIT 3.6 RAILWAY BRIDGE EXHIBIT 3.7 LIGHTING AND SIGNPOSTING PLAN EXHIBIT 4.1 ROAD NETWORK EXHIBIT 4.2 1986 ORIGIN - DESTINATION PATTERNS (AM PEAK) EXHIBIT 4.3 1986 ORIGIN - DESTINATION PATTERNS (PM PEAK) EXI-IIB1T4.4 FORECAST 1995 ORIGIN - DESTINATION PATTERNS (COMBINED AM AND PM PEAKS) EXHIBIT 5.1 LOCAL ACCESS EXHIBIT 5.2 LAND ZONING EXHIBIT 5.3 LAND USE EXHIBIT 5.4 NOISE MONITORING SITES EXHIBIT 5.5 VEGETATiON AND ARCHAEOLOGICAL SITES EXHIBIT 6.1 PLAN OF OPTION 1 EXHIBIT 6.2 PLAN OF OPTION 2 EXHIBIT 6.3 PLAN OF OPTION 3 EXHIBIT 6.4 PLAN OF OPTION 4 ENVIRONMENTAL IMPACT STATEMENT SUMMARY U 1.1 OBJECT! YES OF THE PROJECT The proposal to extend the F4 Freeway from Emu Plains to Lapstone forms an integral part of the overall plan to provide a high standard east-west road route across Sydney. The proposal, in combination with the City-West Link Road, will facilitate the safe and efficient movement of vehicles through the most heavily trafficked corridor in the metropolitan region. More specifically, the proposal will remove a hazardous section of the Great Western Highway between Emu Plains and Lapstone and improve the amenity of residents in Emu Plains who are presently adversely affected by through traffic. 1.2 THE PROPOSED EXTENSION The F4 Freeway extension has been under consideration for many years with several I options being investigated. Factors taken into account in the planning and design process included engineering design standards, traffic, access, visual amenity and I heritage conservation impacts. The preferred scheme arising from these considerations is shown on Exhibit 1.1. I Alternative schemes are addressed in Section 6 of this environmental impact I statement (EIS). The proposed development extends from the present termination point of the F4 I Freeway at Russell Street, Emu Plains to where the Great Western Highway and Governors Drive intersect at Lapstone. The overall length of construction will be 1.9 kilometres. The road easement will vary between 65 and 90 metres in width depending on the depth of cut and fill. An interchange will be provided at Russell Street with a bridge to carry Russell Street over the extended Freeway. This will facilitate exit and entry movements I while maintaining free passage along the Freeway. I nt034.eis I A second grade separated interchange will be provided at the Governors Drive/Great Western Highway intersection at Lapstone. The highway will pass over Governors Drive on a bridge. Other significant engineering aspects of the proposed development include: a substantial bridge to carry the Main Western Rail Line over the extended Freeway; a substantial earthworks embankment to carry the Freeway over Knapsack Creek; and, provision of pedestrian access beneath the extended Freeway via a culvert in the vicinity of Knapsack Creek. Earthworks will be balanced at 100,000 cubic metres of cut and fill and hence there will be no requirement to establish off-site "borrow areas" or dispose of surplus fill. 1.3 INTERACHONS WITH THE ENVIRONMENT 1.3.1 Traffic The proposed development will have a significant and primarily beneficial effect on traffic patterns and movements. In terms of access, the proposed development will increase options for accessing Penrith from the Blue Mountains and generally improve travel times. There is no evidence to suggest that vehicle loadings on Old Bathurst Road and Mitchells Pass Road will increase, in fact, they are expected to decrease slightly. in terms of traffic volumes, the major effect of the development will be to permit growth in through traffic volumes on the F4 while traffic volumes on local roads in the Emu Plains area will be reduced from what they would have been in the absence of the development. 2 nt034.eis 1.3.2 Access Impacts on both inter and intra suburban traffic access were assessed. In terms of inter-suburban access, it is concluded that the development will leave the majority of access routes unchanged or will improve them so that the nett effect will be beneficial.

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