Westminster City Council King Street Low Carbon Trial

TABLE OF CONTENTS

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Executive Summary

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Embodied Carbon Overall Carbon Usage

Introduction Background

Other Environmental Benefits

Scope

Site Feedback Testimonials Financial Impact

Limitations

Aims & Objectives Scheme Details

Conclusion

Baseline

Recommendations

Comparison between King Street & Marlborough Hill

Article – Highways Magazine

14 14

Methodology

Article – Asphalt Now

PPM Standard Works Method – Marlborough Hill

Article – Asphalt Industry Alliance

Article – NLA. London

15

King Street Deviations from Method - Operations King Street Deviations from Method - Specification PPM King Street Works Method

Article – UK.100

15

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Appendix 1 – King Street Operations Carbon Footprint Appendix 2 – Marlborough Hill Carbon Footprint Appendix 3– Supervisor Check Sheet – Site Set Up Appendix 4 – Supervisor Check Sheet – Daily Record Appendix 5 – Lessons Learnt Feedback from Site Staff

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Power Supply Specification

62

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Plant

21

Materials

64

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Transportation

Suppliers

66

Marketing Campaign

Results

TABLES & GRAPHS

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Figure 1 - General Arrangement Drawing for King Street Figure 2 - Shows the differences between the two schemes. Figure 3 - General Arrangement Drawing for Marlborough Hill Figure 4 - Westminster Footway Reconstruction Comparison Table

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Figure 5 - Drawing of Current Specification – Footway Reconstruction (Scale 1:10)

16 Figure 6 - Drawing of Marshalls’ Specification (50mm slab Thickness) – Footway Reconstruction (Scale 1:10) 18 Figure 7 - Charging Point installation to power supply 19 Figure 8 - Charging Point installation to power supply 20 Figure 9 - The JCB excavator in action on King Street 23 Figure 10 - Demonstrates the sustainable products and plant used 25 Figure 11 - Speedy Hire Electric Taxi Delivery Vehicle 30 Figure 12 - Graph Showing the Comparison of Operational Carbon Produced on King Street & Marlborough Hill 31 Figure 13 - Pie Charts Showing the Carbon Produced by Type Across Both Schemes 32 Figure 14 - Graph Showing the Carbon Breakdown Across All Operations 33 Figure 15 - Bar Chart Showing the Total Carbon Footprint at both sites 34 Figure 16 - Graph showing how the embodied carbon is broken down 35 Figure 17 - Table showing the whole tCO2e carbon footprint for both schemes: 35 Figure 18 - Table showing the King Street carbon savings 42 Figure 19 - The table below shows the approximate costs of the extraordinary items 43 Figure 20 - Stacked Graph showing the additional costs against the scheme estimate

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