Road Investment Strategy East Area 6 Scheme Assessment Report A47
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Road Investment Strategy East Area 6 Scheme Assessment Report A47 Guyhirn Junction (A47IMPS2-AMY-GJ-ZZ-DO-L-0006) Date: 23 February 2018 Version: 1.4 [Type here] [Type here] [Type here] Document Control Document Title Scheme Assessment Report – A47 Guyhirn Junction Author Jon Brittain / Dan Hunt / Andrew Warwick / Raymond Logan Owner Aaron Douglas – Highways England Distribution Highways England Document Status Consultee comment Revision History Version Date Description Author 0.1 09/06/17 First Draft for Interim SGAR Jon Brittain 1.0 13/10/17 Draft of Stage 1 info for initial Jon Brittain comment 1.1 01/12/17 Draft of complete product Jon Brittain 1.2 13/12/17 Updated DRAFT for Consultee Jon Brittain comment 1.3 22/01/18 Updated DRAFT following Jon Brittain Consultee comment 1.4 23/02/18 HE Project Management review Lizzie Cooper Reviewer List Name Role Andy Heap A47 Project Director (Amey) Aaron Douglas Highways England Project Manager Paul Carey A47 Programme Manager (Amey) Guy Lewis Senior Responsible Owner (HE) Peter Grant S&P Transport Planning Group (HE) Jose Garvi Serrano SES Environment (HE) Mark Howes SES Safer Roads Group (HE) Raymond Logan Transportation Lead (Amey) Andrew Warwick Environmental Lead (Amey) Dan Hunt Engineering Lead (Amey) Approvals Name Signature Title Date of Version Issue Peter Havlicek P M Havlicek Programme Lead (HE) 18 April 1.4 2019 The original format of this document is copyright to Highways England [Type here] [Type here] [Type here] Table of Contents 1 Introduction ................................................................................................................................. 15 1.1 Background ........................................................................................................................... 15 1.2 Project Control Framework ................................................................................................... 16 1.3 The identified problem ........................................................................................................... 17 1.4 Purpose of this Report .......................................................................................................... 17 1.5 Overview of Timeline of PCF Stages and the Document ..................................................... 18 2 Planning Brief .............................................................................................................................. 20 2.1 Introduction ............................................................................................................................ 20 2.2 National Policy....................................................................................................................... 20 2.3 Local Policy ........................................................................................................................... 24 3 Existing Conditions .................................................................................................................... 26 3.1 Description of the Locality ..................................................................................................... 26 3.2 Existing Highway Network ..................................................................................................... 28 3.3 Traffic .................................................................................................................................... 29 3.4 Collision Data ........................................................................................................................ 33 3.5 Topography, Land Use, Property and Industry ..................................................................... 34 3.6 Climate .................................................................................................................................. 35 3.7 Highway Drainage & Flooding............................................................................................... 35 3.8 Geology ................................................................................................................................. 38 3.9 Unexploded Ordnance .......................................................................................................... 42 3.10 Mining .................................................................................................................................... 42 3.11 Public Utilities ........................................................................................................................ 42 3.12 Technology ............................................................................................................................ 43 3.13 Maintenance Access ............................................................................................................. 44 4 Environment including Environmental Status ......................................................................... 45 4.1 Introduction ............................................................................................................................ 45 4.2 Air Quality .............................................................................................................................. 45 4.3 Cultural Heritage ................................................................................................................... 47 4.4 Landscape and Visual ........................................................................................................... 49 4.5 Nature Conservation and Biodiversity ................................................................................... 54 4.6 Materials ................................................................................................................................ 57 4.7 Geology and Soils ................................................................................................................. 59 4.8 Noise and Vibration ............................................................................................................... 62 4.9 People and Communities ...................................................................................................... 64 [Type here] [Type here] [Type here] 4.10 Road Drainage and Water Environment ............................................................................... 66 5 Accessibility & Integration ......................................................................................................... 70 5.1 Existing NMU Provision ......................................................................................................... 70 5.2 Existing Access to Transport Provision ................................................................................. 70 5.3 Existing Severance ............................................................................................................... 70 5.4 Integration ............................................................................................................................. 71 6 Maintenance................................................................................................................................. 72 6.1 Introduction ............................................................................................................................ 72 6.2 Asset Condition ..................................................................................................................... 72 6.3 Planned Maintenance ........................................................................................................... 72 6.4 Strategic Diversion Routes .................................................................................................... 73 7 Planning Factors ......................................................................................................................... 75 8 Other Relevant Factors ............................................................................................................... 76 8.1 Previous relevant studies and reports ................................................................................... 76 9 Description of Route Options .................................................................................................... 77 9.1 Route Option Development ................................................................................................... 77 9.2 Guyhirn Roundabout Option 1 .............................................................................................. 78 9.3 Guyhirn Roundabout Option 2 .............................................................................................. 79 9.4 Guyhirn Roundabout Option 3 .............................................................................................. 80 9.5 Guyhirn Roundabout Option 4 .............................................................................................. 81 9.6 Guyhirn Roundabout Option 5 .............................................................................................. 82 9.7 Guyhirn Roundabout Option 6 .............................................................................................. 83 9.8 Guyhirn Roundabout Option 7 .............................................................................................. 84 9.9 Guyhirn Roundabout Option 8 .............................................................................................. 85 10 Initial Assessment of Options ...............................................................................................