Medway Council : Gillingham Gate Study Mott MacDonald Development and Link capacity summary analysis 211194\IN09\c\TN011_GG_rev k4_dev impact assessment Medway Council Project Management & Transport Infrastructure Compass Centre Chatham Maritime Kent ME4 4YH Client Scheme No.: 06/04/730359 Instruction No.: 9 Gillingham Gate Preliminary Development Impact Assessment Report 211194/IN09/TN011_Rev_k4 November 2005 Mott MacDonald St Anne House 20-26 Wellesley Road Croydon Surrey CR9 2UL UK Tel : 44 (0)20 8774 2000 Fax : 44 (0)20 8681 5706 211194/IN09//A/Nov 2005 P:\Croydon\EXC\ITL\211194 Medway 2\IN09_gillingham Gate\C - Calculations & Technical Notes\01_tecnotes\TN011_GG_rev k4_dev impact assessment report_141205_AS ISSUED_B.doc/NF Medway Council : Gillingham Gate Study Mott MacDonald Development and Link capacity summary analysis 211194\IN09\c\TN011_GG_rev k4_dev impact assessment Client Scheme No.: 06/04/730359 Instruction No.: 9 Gillingham Gate Preliminary Development Impact Assessment Report 211194/IN09/TN011_Rev_k4 November 2005 Issue and Revision Record Rev Date Originator Checker Approver Description A 03/ 12/04 RB/NF CS SPC First Issue B 05/ 01/05 RB/NF CS SPC Second Issue C 18/04/05 RB/ NF CS SPC Third Issue D 10/08/05 RB RB SPC Fourth Issue E 14/12/05 CC/RB RB SPC Fifth Issue 211194/IN09//A/Nov 2005 P:\Croydon\EXC\ITL\211194 Medway 2\IN09_gillingham Gate\C - Calculations & Technical Notes\01_tecnotes\TN011_GG_rev k4_dev impact assessment report_141205_AS ISSUED_B.doc/NF Medway Council : Gillingham Gate Study Mott MacDonald Development and Link capacity summary analysis 211194\IN09\c\TN011_GG_rev k4_dev impact assessment Contents Chapters and Appendices 1 Introduction 1 1.1 General 1 1.2 Overview of Trip Generation Methodology 2 1.3 Safety Review 2004 3 2 Policy Context 4 2.1 Introduction 4 2.2 Planning Policy Guidance 3 (PPG 3): Housing (March 2000) 4 2.3 Planning Policy Guidance 13 (PPG 13): Transport (October 2002) 4 2.4 Kent & Medway Structure Plan (2003) 5 2.5 Medway Local Plan (2003) 5 2.6 Medway Local Transport Plan (2000 – 2005) 5 2.7 Medway Parking Standards (2003) 6 2.8 Developer Obligations 7 3 Existing Conditions 8 3.1 General 8 3.2 Existing Highway Network 8 3.3 Rail Network 9 3.4 Bus Network 9 3.5 Pedestrian and Cycle 10 3.6 Accident Records & Safety Review 10 3.7 Existing (2003) Traffic Conditions 11 4 Planned Development 15 4.1 New Development 15 5 Potential Movement Strategies 18 5.1 Transport Projects 18 5.1.1 Public Transport Information and Car Park Information Systems 18 5.1.2 Demand Management 18 5.1.3 Parking Management Strategy 19 5.1.4 Pedestrian and Cycle Route Improvements 19 6 Development Scenarios, Highway and Safety Issue 19 6.1 Forecast Flows Without Development 19 211194/IN09//A/Nov 2005 P:\Croydon\EXC\ITL\211194 Medway 2\IN09_gillingham Gate\C - Calculations & Technical Notes\01_tecnotes\TN011_GG_rev k4_dev impact assessment report_141205_AS ISSUED_B.doc/NF Medway Council : Gillingham Gate Study Mott MacDonald Development and Link capacity summary analysis 211194\IN09\c\TN011_GG_rev k4_dev impact assessment 6.2 Trip Generation Parameters 20 6.3 Development Scenarios 20 6.3.1 Development Scenario A: Do Minimum 21 6.3.2 Development Scenario B: A + Committed Developments 21 6.3.3 Development Scenario C: Committed Development (B) + Other Identified Development 21 6.3.4 Development Traffic Scenario D: Committed Development (B) + Other Identified Development + Long Term Development 21 6.4 Traffic Flows 22 6.4.1 Scenario B (Committed Development) 22 6.4.2 Scenario C 22 6.4.3 Scenario D 22 6.5 Summary of Overall Highway Assessment 23 6.6 Effect of Individual Sites 24 6.7 Potential Junction Improvements 25 Future Safety Issues 29 7 Highway Capacity Sensitivity Assessment 48 8 Longer Term Vision and Complimentary Measure 59 8.1 Overall Transport network 59 8.2 Transport Projects 59 8.2.1 Public Transport Information and Car Park Information Systems 60 8.2.2 Demand Management 60 8.2.3 Parking Management Strategy 62 8.2.4 Pedestrian and Cycle Route Improvements 62 9 Conclusion and Recommendations 63 Parking standards for people with a disability A-2 Parking standards for new development A-2 List of Tables Table 2.1: Medway Parking Standards.................................................................................................... 6 Table 3.1: Peak Hours Train Frequency From/ To Gillingham/ Chatham.............................................. 9 Table 4.1: List of Proposed Development Sites .................................................................................... 16 Table 6.1: Development Parameters..................................................................................................... 20 Table 6.2: Trip Rates............................................................................................................................ 20 Table 6.3: Peak Hours Overall Traffic Flow at Key Junctions (total junction flow) ............................ 23 Table 6.4: Impact of Development Traffic on Key Junctions’ Performances (RFC’s highest of all arms) ................................................................................................................................. 24 Table 6.5: Traffic Flow Generated By Each Development (total junction flow) - Peak Hours ............ 31 Table 7.1: Summary of Fixed Developments Included in the Analysis................................................ 48 Table 7.2: Summary of Development Density, Areas and Trip Generation for the Four Variable Tested Scenarios........................................................................................................................... 49 Table 7.3: Summary of the Trip Generation From the Four Variable Scenarios .................................. 49 Table 7.4: Link analysis for the four tested scenarios ........................................................................... 50 Table 7.5: Percentage of over saturation on the effected links.............................................................. 50 Table 7.6: Scenario DH......................................................................................................................... 55 211194/IN09//A/Nov 2005 P:\Croydon\EXC\ITL\211194 Medway 2\IN09_gillingham Gate\C - Calculations & Technical Notes\01_tecnotes\TN011_GG_rev k4_dev impact assessment report_141205_AS ISSUED_B.doc/NF Medway Council : Gillingham Gate Study Mott MacDonald Development and Link capacity summary analysis 211194\IN09\c\TN011_GG_rev k4_dev impact assessment Table 7.7: Scenario DM ........................................................................................................................ 56 Table 7.8: Scenario DM1 ...................................................................................................................... 57 Table 7.9: Scenario DL ......................................................................................................................... 58 List of Figures Figure 1.1: Study Area ............................................................................................................................ 1 Figure 1.2: Proposed Development Sites ................................................................................................ 3 Figure 3.1: Existing Highway Network .................................................................................................. 8 Figure 3.2: Existing Bus Network (Weekday Peak Hours)................................................................... 10 Figure 3.3: Accident Locations Between Gillingham Gate and Four Elms Roundabout...................... 11 Figure 3.4: 2003 Traffic Flow (pcu/ hr) – AM Peak (0800 – 0900)...................................................... 13 Figure 3.5: 2003 Traffic Flow (pcu/ hr) - PM Peak (1700 – 1800)....................................................... 14 Figure 4.1: Proposed Development Sites .............................................................................................. 17 Figure 6.1: Scenario A Background Traffic Flow – AM Peak (0800 – 0900) ...................................... 32 Figure 6.2:Scenario A Background Traffic Flow – PM Peak (1700 – 1800)........................................ 33 Figure 6.3:Scenario B (Committed Development) Traffic Flow – AM Peak (0800 – 0900)................ 34 Figure 6.4:Scenario B (Committed Development) Traffic Flow – PM Peak (1700 – 1800) ................ 35 Figure 6.5:Scenario B Resultant Traffic Flow – AM Peak (0800 – 0900)............................................ 36 Figure 6.6:Scenario B Resultant Traffic Flow – PM Peak (1700 – 1800) ............................................ 37 Figure 6.7:Scenario C Development Traffic Flow – AM Peak (0800 – 0900) ..................................... 38 Figure 6.8:Scenario C Development Traffic Flow – PM Peak (1700 – 1800)...................................... 39 Figure 6.9:Flow Generated by Existing Usages of Site 27 – AM Peak (0800 – 0900)......................... 40 Figure 6.10:Flow Generated by Existing Usages of Site 27 – PM Peak (1700 – 1800) ....................... 41 Figure 6.11: Scenario C Resultant Traffic Flow – AM Peak (0800 – 0900)......................................... 42 Figure 6.12: Scenario C Resultant Traffic Flow – PM Peak (1700 – 1800) ......................................... 43 Figure 6.13: Scenario D Development Traffic Flow – AM Peak (0800 – 0900) .................................. 44 Figure 6.14: Scenario D Development Traffic Flow – PM Peak (1700 – 1800)..................................