Received 21.08.2020 East Derwent Highway Upgrade Development Application Change the document title using the properties option on the Jacobs RibbonProject NameClient Name Appendix K. Traffic Impact Assessment Received 21.08.2020 East Derwent Highway Upgrade – Golf Links Road to Sugarloaf Road Traffic Impact Assessment IS262318 | 3 14 August 2020 Department of State Growth Traffic Impact Assessment Department of State Growth Received 21.08.2020 East Derwent Highway Upgrade Project No: IS262318 Document Title: Traffic Impact Assessment Document No.: IS262318 Revision: 2 Document Status: Final Date: 30 July 2020 Client Name: Department of State Growth Project Manager: Clayton Johnston Author: Jonathan Bryce and Cassandra Min File Name: IS262318-0000-CT-RPT-0001 Jacobs Group (Australia) Pty Limited ABN 37 001 024 095 Floor 11, 452 Flinders Street Melbourne VIC 3000 PO Box 312, Flinders Lane Melbourne VIC 8009 Australia T +61 3 8668 3000 F +61 3 8668 3001 www.jacobs.com © Copyright 2019 Jacobs Group (Australia) Pty Limited. The concepts and information contained in this document are the property of Jacobs. Use or copying of this document in whole or in part without the written permission of Jacobs constitutes an infringement of copyright. Limitation: This document has been prepared on behalf of, and for the exclusive use of Jacobs’ client, and is subject to, and issued in accordance with, the provisions of the contract between Jacobs and the client. Jacobs accepts no liability or responsibility whatsoever for, or in respect of, any use of, or reliance upon, this document by any third party. Document history and status Revision Date Description Author Checked Reviewed Approved 1.0 22/04/20 Initial Draft JB & CM MD MD SF 2.0 30/07/20 Final Version for Client Review JB & CM MD MD SF 3.0 14/08/20 Final Version JB, CM, HG MD MD CJ & NG IS262318 1 Received 21.08.2020 Contents 1. Introduction............................................................................................................................................................. 4 1.1 Background .............................................................................................................................................................................. 4 1.2 Purpose of this report ........................................................................................................................................................... 4 1.3 Document Change History .................................................................................................................................................. 5 1.4 Planning requirements ......................................................................................................................................................... 5 2. Existing Conditions ................................................................................................................................................ 8 2.1 Site Location ............................................................................................................................................................................. 8 2.2 Surrounding Road Network ................................................................................................................................................ 8 2.3 Modelling Existing and Future Conditions .................................................................................................................... 9 2.4 Traffic Volumes ..................................................................................................................................................................... 12 2.5 Signal Data ............................................................................................................................................................................. 16 2.6 Base Model ............................................................................................................................................................................. 16 2.6.1 Base Model Development ................................................................................................................................................ 16 2.6.2 Base Model Calibration and Validation ....................................................................................................................... 18 2.6.3 Results ...................................................................................................................................................................................... 19 2.7 Existing Intersection Operation ...................................................................................................................................... 19 3. Future Network Model ....................................................................................................................................... 21 3.1 Proposed Design .................................................................................................................................................................. 21 3.2 Traffic Signal Operation .................................................................................................................................................... 23 3.3 Model Assumptions ............................................................................................................................................................ 24 3.4 Future Volumes .................................................................................................................................................................... 24 3.5 Network Performance ........................................................................................................................................................ 25 3.5.1 Queue Length Comparison .............................................................................................................................................. 25 3.5.2 Average Delay, LoS and DoS Comparison ................................................................................................................. 29 3.5.3 Internal Road Network ....................................................................................................................................................... 31 3.6 Lindisfarne North Primary School internal arrangement ..................................................................................... 33 3.6.1 Internal roundabout ............................................................................................................................................................ 34 3.6.2 Southern Egress .................................................................................................................................................................... 34 4. Further Modelling Considerations ................................................................................................................. 35 4.1 Redistribution of right turns from Sugarloaf Road to East Derwent Highway ............................................. 35 5. Discussion ............................................................................................................................................................. 36 5.1 Network Performance ........................................................................................................................................................ 36 5.1.1 Geilston Bay Road / Dumbarton Drive Roundabout .............................................................................................. 36 5.1.2 East Derwent Highway / Derwent Avenue / Golf Links Road intersection .................................................... 36 5.1.3 Saturday Events .................................................................................................................................................................... 36 5.2 Vehicular and Pedestrian Access ................................................................................................................................... 36 5.2.1 Lindisfarne North Primary School Precinct................................................................................................................ 36 IS262318 2 Received 21.08.2020 5.2.2 Commercial Precinct .......................................................................................................................................................... 37 5.2.3 Adjustment to accesses, Geilston Creek Road .......................................................................................................... 37 5.2.4 Residential Accesses ........................................................................................................................................................... 37 5.2.5 Pedestrian Access ............................................................................................................................................................... 38 5.2.6 Cycling Facilities .................................................................................................................................................................. 38 5.2.7 Parking ..................................................................................................................................................................................... 38 5.2.8 Departure lanes ...................................................................................................................................................................