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SEMMMS A6 TO M60 RELIEF ROAD STRATEGIC OUTLINE BUSINESS CASE Volume One: Main Report DRAFT SEMMMS A6 TO M60 RELIEF ROAD STUDY STRATEGIC OUTLINE BUSINESS CASE Transport for Greater Manchester & Stockport Metropolitan Borough Council Volume One: Main Report Project no: 70019764 WSP The Victoria 150-182 The Quays Salford Greater Manchester M50 3SP www.wsp.com QUALITY MANAGEMENT ISSUE/REVISION FIRST ISSUE REVISION 1 REVISION 2 REVISION 3 Remarks Issued for Client Review Date Prepared by Sean Ford Signature Checked by Gary Rowland Signature Authorised by Nasr Malik Signature Project number Report number File reference ii TABLE OF CONTENTS SEMMMS A6 TO M60 RELIEF ROAD .......................................................... 1 EXECUTIVE SUMMARY................................................................................ 4 1 INTRODUCTION ............................................................................. 5 1.1 BACKGROUND AND CONTEXT .................................................................... 5 1.2 DESCRIPTION OF THE SCHEME .................................................................. 7 1.3 PURPOSE OF THE SCHEME ....................................................................... 11 1.4 STATUS OF THE SCHEME .......................................................................... 11 1.5 STUDY CONTEXT ........................................................................................ 12 1.6 STRUCTURE OF THE BUSINESS CASE ..................................................... 12 2 STRATEGIC CASE ....................................................................... 14 2.1 INTRODUCTION ........................................................................................... 14 2.2 SCHEME OBJECTIVES ................................................................................ 14 2.3 THE CHALLENGE/ DRIVER FOR CHANGE................................................. 15 2.4 THE CASE FOR THE A6 TO M60 RELIEF ROAD SCHEME ........................ 23 2.5 POLICY/ STRATEGY ALIGNMENT .............................................................. 49 2.6 SEMMMS REFRESH TO 2040 ...................................................................... 75 2.7 SCHEME INTERDEPENDENCIES ................................................................ 84 2.8 OPTION DEVELOPMENT ............................................................................. 86 2.9 STAKEHOLDER ENGAGEMENT ................................................................. 90 3 ECONOMIC CASE ........................................................................ 94 3.1 INTRODUCTION ........................................................................................... 94 3.2 MODELLING OF SCHEME ........................................................................... 94 3.3 SCHEME IMPACT ........................................................................................ 95 3.4 ECONOMIC APPRAISAL AND RESULTS.................................................... 96 3.5 SCHEME BENEFITS .................................................................................... 97 3.6 ENVIRONMENTAL IMPACTS..................................................................... 103 3.7 DISTRIBUTIONAL IMPACTS...................................................................... 113 3.8 DIRECT ECONOMY IMPACTS ................................................................... 118 3.9 LOGIC MAP ................................................................................................ 119 3.10 APPRAISAL SUMMARY TABLE ................................................................ 121 3.11 VALUE FOR MONEY STATEMENT............................................................ 121 SEMMMS: A6 to M60 Relief Road Study WSP TfGM & Stockport Council Project No 70019764 Strategic Outline Business Case iii 4 FINANCIAL CASE ...................................................................... 123 4.1 INTRODUCTION ......................................................................................... 123 4.2 ORIGINAL SEMMMS RELIEF ROAD COST ESTIMATE ............................ 123 4.3 OVERALL SCHEME COST ESTIMATE ...................................................... 123 4.4 COMPLEMENTARY AND MITIGATION MEASURES COST ESTIMATE .... 124 4.5 FINANCIAL RISKS ..................................................................................... 125 4.6 FUNDING STRATEGY................................................................................ 125 4.7 COST OF DEVELOPING OUTLINE BUSINESS CASE ............................... 125 5 COMMERCIAL CASE................................................................. 129 5.1 INTRODUCTION ......................................................................................... 129 5.2 OUTLINE APPROACH ............................................................................... 129 5.3 OUTPUT BASED SPECIFICATION ............................................................ 129 5.4 CONTRACT MANAGEMENT ...................................................................... 130 5.5 PROCUREMENT OPTIONS ........................................................................ 131 5.6 RISK REGISTER, TRANSFER AND MITIGATION ...................................... 136 6 MANAGEMENT CASE ............................................................... 138 6.1 INTRODUCTION ......................................................................................... 138 6.2 EVIDENCE OF SIMILAR PROJECTS ......................................................... 138 6.3 PROGRAMME / PROJECT DEPENDENCIES ............................................ 143 6.4 PROJECT GOVERNANCE ......................................................................... 143 6.5 PROJECT PLAN ......................................................................................... 145 6.6 ASSURANCE AND APPROVALS PLANS .................................................. 148 6.7 PROJECT CONTROL PROCESS ............................................................... 149 6.8 RISK MANAGEMENT ................................................................................. 150 6.9 PLANNING POWERS AND CONSENTS .................................................... 154 6.10 STAKEHOLDER MANAGEMENT ............................................................... 159 6.11 BENEFITS AND EVALUATION .................................................................. 164 SEMMMS: A6 to M60 Relief Road Study WSP TfGM & Stockport Council Project No 70019764 Strategic Outline Business Case EXECUTIVE SUMMARY SEMMMS: A6 to M60 Relief Road Study WSP TfGM & Stockport Council Project No 70019764 October 2017 Strategic Outline Business Case 1 INTRODUCTION 1.1 BACKGROUND AND CONTEXT 1.1.1 In July 1998 the Government published A New Deal for Trunk Roads in England, following a strategic review of the roads programme undertaken in association with the development of its new Transport Policy. The report established a Targeted Programme of Improvements to the trunk road network to be taken forward by the Highways Agency. The report also proposed a series of ‘multi-modal’ studies to address problems on the strategic trunk road network not covered by the short term Targeted Programme of Improvements. 1.1.2 The South East Manchester Multi-Modal Study (SEMMMS) was one of such studies. Recognising that transport problems and their solutions are not just limited to the trunk road network, the studies considered all modes of transport. 1.1.3 The SEMMMS study was commissioned because the following three road schemes were removed from the trunk roads programme along with the de-trunking of the A6 and the A523: Æ The A6(M) Stockport North South Bypass; Æ The A555 Manchester Airport Link Road West (MALRW); and Æ The A555/A523 Poynton Bypass 1.1.4 These schemes have been identified in various plans since the 1930’s1 and residential and employment developments in this area have been predicated on these schemes being delivered. All three corridors are protected within the relevant local authority strategic plans. The schemes were previously assigned to the Highways Agency to deliver, and progress on these schemes included agreeing preferred routes and appropriate procedures for the A6(M) following a Public Inquiry in 1988. 1.1.5 The central section of the A555 Manchester Airport Eastern Link Road (MAELR) was completed in November 1995 as part of a local authority A34 bypass scheme, with contributions from the Highway Agency and developers, on the assumption that the rest of the route would be built shortly afterwards, with strong supporting evidence presented at Public Inquiry by the Highways Agency. 1.1.6 The original Highways Agency’s proposals for the three remitted road schemes were for: Æ The A6(M) to be built to motorway standard. The proposals included a complex arrangement of collector-distributor links to the Hazel Grove (the Stepping Hill Link Road) area as well as works between Offerton and Hazel Grove to facilitate a connection to a dual carriageway bypass of High Lane and Disley, a scheme which had previously been removed from the Government’s road programme. Æ The A555 MALRW scheme was for a fully grade separated dual carriageway and included major rebuilding and expansion of Junction 5 on the M56; and 1 Hansard 02 March 2017, records show that it is actually more than 242 years since residents in and around Stockport first made representations to the House calling for a similar road to relieve local congestion on what was then known as the London road, which is now the A6. SEMMMS: A6 to M60