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M1 SmogStop® Air Quality Barrier Trial Final Report Clients: National Highways and Gramm Barrier Systems Ltd Authors: Dr Andreas Kafizas & Dr Glyn Rhys-Tyler Date: August 18th 2023 Version: 1.3 Status: Final This page is intentionally blank PAGE 2 Record of changes Released to Version Reason for cha…

A23 Handcross to Warninglid Five-year post-opening project evaluation This document has been prepared by National Highways with assistance from its consultants (where employed). The document and its accompanying data remain the property of National Highways. While all reasonable care has been taken in the preparation of this document, it cannot be guaranteed that it is free of every potential erro…

Smart motorways stocktake Second year progress report 2022 Second year progress report B Second year progress report Contents Foreword 2 Executive summary 4 Going further – 2021 Transport Select Committee report 12 Giving clarity to drivers 16 Finding a safe place to stop 22 Being safer in moving traffic 27 Updated safety evidence 39 Conclusion and next steps 56 Annex A – Smart motorways map (corr…

National Highways Geotechnical Asset Performance: Deterioration Modelling for Decision Support (SPaTS Task 1-1061) GDMS Report ID: 37395 August 2022 Mott MacDonald 35 Newhall Street Birmingham B3 3PU United Kingdom T +44 (0)121 234 1500 mottmac.com National Highways Geotechnical Asset Performance: Deterioration Modelling for Decision Support (SPaTS Task 1-1061) GDMS Report ID: 37395 August 2022 Mo…

National Highways Performance Monitoring Statements Year end 2023-24 These statements are the primary sources of information for the performance of National Highways in accordance with the ORR Monitoring Guidelines. Performance Specification statements PS1 Improving safety for all PS2 Providing fast and reliable journeys PS3 A well maintained and resilient network PS4 Delivering better environment…

A160/A180 Port of Immingham Improvement One-year post-opening project evaluation This document has been prepared by National Highways with assistance from its consultants (where employed). The document and its accompanying data remain the property of National Highways. While all reasonable care has been taken in the preparation of this document, it cannot be guaranteed that it is free of every pot…

A45/A46 Tollbar End improvement One-year post-opening project evaluation This document has been prepared by National Highways with assistance from its consultants (where employed). The document and its accompanying data remain the property of National Highways. While all reasonable care has been taken in the preparation of this document, it cannot be guaranteed that it is free of every potential e…

Smart motorways stocktake Fourth year progress report: December 2024 02 Smart motorways stocktake – Fourth year progress report Contents 03 12 51 96 Foreword Stocktake action summary Annex A - Smart Annex F – Before versus motorways map after - Detailed collision 05 19 data Executive summary Updated safety evidence 52 Annex B - Methodology 98 10 50 Annex G – Network shape Smart motorway features C…

1` Smart motorways - scheme safety ‘Before’ versus ‘after’ assessment Contents Executive summary . 3 1. Background and context . 7 2. Scheme-level headline comparisons . 12 3. Scheme-level detailed comparisons . 20 4. Conclusions . 22 Annex A - Smart motorways map (correct as of June 2023) . 24 Annex B - Smart motorway scheme information . 25 Annex C - Methodology . 32 Annex D - Detailed tables . …

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