A120 Braintree to A12 Essex County Council PCF Stage 2 Outline Business Case B3553T41-JAC-HGN-00-GN-J-0003 | P00 23 October 2018 Document Ti tle Client Name A120 Braintree to A12 Stage 2 Outline Business Case Project Name Project no: B3553T41 Document title: PCF Stage 2 Outlined Business Case Document No.: B3553T41-JAC-HGN-00-GN-J-0003 Revision: P00 Date: 19 October 2018 Client name: Essex County Council Client no: - Project manager: James Burke Author: Cameron Harvey File name: A120 Braintree to A12 Stage 2 OBC Jacobs U.K. Limited Jacobs House Shrewsbury Business Park Shrewsbury Shropshire SY2 6LG United Kingdom T +44 (0)1743 284 800 F +44 (0)1743 245 558 www.jacobs.com © Copyright 2018 Jacobs U.K. Limited. The concepts and information contained in this document are the property of Jacobs. Use or copying of this document in whole or in part without the written permission of Jacobs constitutes an infringement of copyright. Limitation: This report has been prepared on behalf of, and for the exclusive use of Jacobs’ Client, and is subject to, and issued in accordance with, the provisions of the contract between Jacobs and the Client. Jacobs accepts no liability or responsibility whatsoever for, or in respect of, any use of, or reliance upon, this report by any third party. Document history and status Revision Date Description By Review Approved P00 23/10/2018 PCF Stage 2 Outlined Business Case following ECC review C. Harvey M. Stubbs J. Burke B3553T41-JAC-HGN-00-GN-J-0003 i A120 Braintree to A12 Stage 2 Outline Business Case Contents 1. Executive Summary ......................................................................................................................... 1 1.1 Why the proposed project / programme / contract is being undertaken? .......................................... 1 1.2 Strategic context and key performance indicator (KPI) contribution .................................................. 1 1.3 Explain how the proposal will achieve value for money ..................................................................... 2 1.4 Commercial (covering procurement) .................................................................................................. 3 1.5 Provide evidence that the proposal is affordable and explain people considerations ....................... 4 1.6 Project and Programme Management – deliverability ....................................................................... 5 1.7 Risks | legal | regulatory ..................................................................................................................... 5 1.8 Recommendation ............................................................................................................................... 5 2. The Strategic Case (Strategic Context) .......................................................................................... 6 2.1 Project Description and Background .................................................................................................. 6 2.2 As-is Position and Do-Nothing Consequences .................................................................................. 7 2.3 Identification of Intervention Specific Objectives .............................................................................. 11 2.4 Scope of Intervention Required ........................................................................................................ 14 2.5 Long-List Appraisal ........................................................................................................................... 14 2.6 Description of Options ...................................................................................................................... 15 2.7 Proposed Strategic Benefits and KPI Contributions ......................................................................... 17 2.8 Environment Impact .......................................................................................................................... 19 2.9 Key Stakeholder and Customer Requirements ................................................................................ 19 2.9.1 Communications Strategy ................................................................................................................ 20 2.9.2 Non-Statutory Public Consultation ................................................................................................... 20 2.9.3 Transport Focus Survey ................................................................................................................... 23 2.9.4 Government and Business Support ................................................................................................. 23 2.10 Limitation Statement ......................................................................................................................... 24 3. The Economic Case (Value for Money) ........................................................................................ 25 3.1 Purpose ............................................................................................................................................ 25 3.2 Options Appraisal and Key Findings ................................................................................................ 25 3.3 Recommendation ............................................................................................................................. 28 3.3.1 General Conclusions ........................................................................................................................ 28 3.3.2 Preferred Option in Absolute Terms ................................................................................................. 28 3.4 Qualitative Assessment .................................................................................................................... 29 3.4.1 Economy ........................................................................................................................................... 30 3.4.2 Environment ..................................................................................................................................... 30 3.4.3 Social ................................................................................................................................................ 31 3.4.4 Public Finances ................................................................................................................................ 31 3.5 Benefits Assessment ........................................................................................................................ 32 3.5.1 User Benefits .................................................................................................................................... 32 3.5.2 Noise and Air Quality ........................................................................................................................ 33 3.5.3 Greenhouse Gases .......................................................................................................................... 33 3.5.4 Accidents .......................................................................................................................................... 33 B3553T41-JAC-HGN-00-GN-J-0003 ii A120 Braintree to A12 Stage 2 Outline Business Case 3.5.5 Indirect Taxes ................................................................................................................................... 34 3.5.6 Construction Delay ........................................................................................................................... 34 3.5.7 Journey Time Reliability ................................................................................................................... 35 3.5.8 Wider Economic Impacts .................................................................................................................. 35 3.5.9 Summary of Monetised Benefits ...................................................................................................... 36 3.6 Costs Assessment ............................................................................................................................ 36 3.7 Cost Benefit Analysis ........................................................................................................................ 36 3.8 Scoring of Non-Monetised Benefits .................................................................................................. 39 3.9 Sensitivity and Risk .......................................................................................................................... 39 3.9.1 Sensitivity Testing ............................................................................................................................. 39 3.9.2 Risk ................................................................................................................................................... 42 3.10 Detailed Benefit, Cost and Impact Appraisal .................................................................................... 43 4. Financial Case (Affordability) ........................................................................................................ 46 4.1 Financial Model ................................................................................................................................ 46 4.2 Budget management arrangements ................................................................................................. 47 4.3 Risk and