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Reading Borough Local Plan Transport Modelling Report On behalf of Reading Borough Council Project Ref: 28791/5520 | Rev: AA | Date: March 2017 Office Address: Caversham Bridge House, Waterman Place, Reading, Berkshire RG1 8DN T: +44 (0)118 950 0761 E: [email protected] Highway Modelling Report Reading Borough Local Plan Document Control Sheet Project Name: Reading Borough Local Plan Project Ref: 28791/5520 Report Title: Transport Modelling Report Doc Ref: 28791-5520-LPHM Date: 17th March 2017 Name Position Signature Date Carlos Ferrando Graduate Engineer Prepared by: 17-03-2017 Jamie Pound Senior Technician Reviewed by: Paul Gebbett Associate 20-03-2017 Approved by: Sarah Matthews Equity Director 24-03-2017 For and on behalf of Peter Brett Associates LLP Revision Date Description Prepared Reviewed Approved 1 01/06/2017 Review of client comments JP PG SM Update Base model to include 2 20/10/2017 additional committed JP PG SM development This report has been prepared by Peter Brett Associates LLP (‘PBA’) on behalf of its client to whom this report is addressed (‘Client’) in connection with the project described in this report and takes into account the Client's particular instructions and requirements. This report was prepared in accordance with the professional services appointment under which PBA was appointed by its Client. This report is not intended for and should not be relied on by any third party (i.e. parties other than the Client). PBA accepts no duty or responsibility (including in negligence) to any party other than the Client and disclaims all liability of any nature whatsoever to any such party in respect of this report. © Peter Brett Associates LLP 2017 S:\Planning-Data\PLAN\Local Development ii Framework\New Local Plan\Pre Submission Draft Local Plan\Draft Local Plan\Transport Highway Modelling Report Reading Borough Local Plan Contents 1 Introduction ................................................................................................................................. 1 1.1 Context .......................................................................................................................... 1 1.2 Report Structure ............................................................................................................ 1 2 Methodology ................................................................................................................................ 2 2.1 Overview ........................................................................................................................ 2 2.2 SATURN Models ........................................................................................................... 2 2.3 Forecasting .................................................................................................................... 6 2.4 Background Traffic Growth – Reference Case ............................................................. 6 2.5 Local Plan Model ........................................................................................................... 7 2.6 Dealing with Congested Network .................................................................................. 7 3 Development Scenarios ........................................................................................................... 10 3.1 Reference Case Models .............................................................................................. 10 3.2 Local Plan Model ......................................................................................................... 14 3.3 Trip Distribution ........................................................................................................... 18 3.4 Grazeley Garden Settlement ....................................................................................... 18 4 Results ....................................................................................................................................... 20 4.1 Outputs ........................................................................................................................ 20 4.2 Trip Generation ............................................................................................................ 20 4.3 Flow Plots .................................................................................................................... 23 4.4 Over Capacity Junctions ............................................................................................. 29 4.5 Link Volume/Capacity .................................................................................................. 33 4.6 Over Capacity Links .................................................................................................... 40 4.7 The Strategic Road Network (SRN) ............................................................................ 46 5 Conclusion ................................................................................................................................. 47 5.1 Summary ..................................................................................................................... 47 5.2 Next steps .................................................................................................................... 47 Figures Figure 2.1: Reading Transport Model Study Area ................................................................................ 3 Figure 2.2: Reading Transport Model Study Area Network .................................................................. 4 Figure 2.3: Reading Transport Model Study Area Zones ..................................................................... 5 Figure 2.4: Trip Rate Sectors used for Local Plan Development .......................................................... 9 Figure 3.1: Local Plan Sites ................................................................................................................ 15 Figure 4.1: RTM Sector Plan ............................................................................................................... 20 Figure 4.2: Difference in Actual Flow Between 2036 Reference Case and 2036 Local Plan (AM Peak Hour) 24 Figure 4.3: Difference in Demand Flow Between 2036 Reference Case and 2036 Local Plan (AM Peak Hour) 25 Figure 4.4: Difference in Actual Flow Between 2036 Reference Case and 2036 Local Plan (Inter Peak Average Hour) .............................................................................................................................. 26 S:\Planning-Data\PLAN\Local Development iii Framework\New Local Plan\Pre Submission Draft Local Plan\Draft Local Plan\Transport Highway Modelling Report Reading Borough Local Plan Figure 4.6: Difference in Actual Flow Between 2036 Reference Case and 2036 Local Plan (PM Peak Hour) 28 Figure 4.7: Difference in Demand Flow Between 2036 and 2036 Local Plan (PM Peak Hour) ......... 29 Figure 4.8: Junctions with a V/C Greater Than 1 – Reference Case (AM Peak Hour) ....................... 30 Figure 4.9: Junctions with a V/C Greater Than 1 – With Local Plan (AM Peak Hour) ........................ 31 Figure 4.10: Junctions with a V/C Greater Than 1 – Reference Case (PM Peak Hour) ....................... 32 Figure 4.11: Junctions with a V/C Greater Than 1 – With Local Plan (PM Peak Hour) ........................ 33 Figure 4.12: Link V/C – Reference Case (AM Peak Hour) ................................................................... 34 Figure 4.13: Link V/C – with Local Plan (AM Peak Hour) ..................................................................... 35 Figure 4.14: Link V/C – Reference Case (Inter Peak) .......................................................................... 36 Figure 4.15: Link V/C – with Local Plan (Inter Peak) ............................................................................ 37 Figure 4.16: Link V/C – Reference Case (PM Peak Hour) ................................................................... 38 Figure 4.17: Link V/C – with Local Plan (PM Peak Hour) ..................................................................... 39 Figure 4.12: Links with V/C Greater Than 1 – Reference Case (AM Peak Hour) ................................. 40 Figure 4.13: Links with V/C Greater Than 1 – with Local Plan (AM Peak Hour) .................................. 41 Figure 4.14: Links with V/C Greater Than 1 – Reference Case (Inter Peak) ........................................ 42 Figure 4.15: Links with V/C Greater Than 1 – with Local Plan (Inter Peak) ......................................... 43 Figure 4.16: Links with V/C Greater Than 1 – Reference Case (PM Peak Hour) ................................. 44 Figure 4.17: Links with V/C Greater Than 1 – with Local Plan (PM Peak Hour) .................................. 45 Tables Table 3.1: Committed Developments ................................................................................................. 11 Table 3.2: WebTAG Probability Classification of Future Development Inputs .................................. 12 Table 3.3: Committed Development Trip Generation ........................................................................ 13 Table 3.4: 2015 to 2036 NTEM Trip Generation ................................................................................ 14 Table 3.5: Residential Vehicle Trip Rates per Dwelling ..................................................................... 16 Table 3.6: Residential OGV Trip Rates per Dwelling ........................................................................