Appraisal of Extension of Bedlinog Line to Dowlais Top
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Sewta Rail Strategy Update 2013 Appraisal of Extension of Bedlinog Line to Dowlais Top December 2013 Document Control Sheet BPP 04 F8 Version 16; October 2013 Project: Sewta Rail Strategy Update Client: South East Wales Transport Project No: B1874900 Alliance Document title: Dowlais Top Extension Ref. No: Originated by Checked by Reviewed by NAME NAME NAME ORIGINAL Geoff Smith Firuz Sulaimi Richard Hibbert NAME As Project Manager I confirm that the INITIALS Approved by above document(s) have been subjected to Jacobs’ Check and Review procedure and Richard Hibbert that I approve them for issue GCS DATE 31 12 13 Document status . 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Dowlais Top extension Report FV 2014 Contents 1 Introduction 1 1.1 Background 1 1.2 Study Requirements 2 1.3 Report Structure 2 2 Operations Assessment 3 2.1 Introduction 3 2.2 Assumptions 3 2.2.1 Stations 3 2.2.2 Line speed 3 2.2.3 Signalling and Infrastructure 4 2.2.4 Sectional Running Times - Passenger 4 2.2.5 Sectional Running Times - Freight 4 2.3 Timetable Options 5 2.3.1 One Train Per Hour Timetable Options 6 2.3.2 Two Trains Per Hour Timetable Option 9 2.4 Operating Costs 10 3 Engineering Assessment 11 3.1 Background 11 3.2 Existing infrastructure 11 3.2.1 Generally 11 3.2.2 Permanent Way 12 3.2.3 Signalling 12 3.2.4 Structures 12 3.2.5 Station sites 12 3.2.6 Scope of works 12 3.3 Cwmbargoed - Dowlais 13 3.3.1 Alignment 13 3.3.2 Bogey Road Bridge 14 3.3.3 Dowlais Station 14 3.4 Ystrad Mynach - Cwmbargoed: One passenger train per hour 15 3.4.1 Permanent Way 15 3.4.2 Loops 15 3.4.3 Signalling 15 3.4.4 Structures 15 3.4.5 Stations 15 3.4.6 Bedlinog 16 3.5 Ystrad Mynach - Cwmbargoed: Two passenger train per hour 17 3.5.1 Permanent Way 17 3.5.2 Stations 17 3.5.3 Scope Risks 17 3.6 Powers and Consents 18 3.6.1 Transport and Works Act Order 18 3.6.2 Her Majesty’s Railway Inspectorate (HMRI) 18 3.6.3 Major Project Notice 18 3.6.4 Network Change 18 3.6.5 Station Change 18 Dowlais Top extension Report FV 2014 3.7 Cost and risk 18 4 Demand and Revenue Forecasts 21 4.1 Introduction 21 4.2 Increased Passenger Demand at Existing Stations 21 4.3 New Passenger Demand at New Stations 22 4.4 Abstracted Passenger Demand 23 4.5 Passenger Demand Summary 24 4.6 Revenue Forecast 24 5 Economic Appraisal 27 5.1 Introduction 27 5.2 User Time Savings 27 5.3 Non-User Benefits 29 5.4 Physical Fitness Impacts 30 5.4.1 Reduced Mortality 30 5.4.2 Absenteeism Benefits 31 5.5 Economic Appraisal Assumptions 31 5.5.1 Appraisal Results – Main Options 32 5.5.2 Sensitivity Analysis 34 6 Conclusions and Recommendations 37 6.1 Conclusions 37 6.2 Recommendations 37 Appendix A Infrastructure Diagrams Appendix B Sewta New Station Trip Rate Model Appendix C Appraisal Summary Tables – Main Options Dowlais Top extension Report FV 2014 1 Introduction 1.1 Background The SEWTA Rail Strategy 2013 proposes extending the passenger rail network to Bedlinog via Nelson and Trelewis along the existing freight line from Ystrad Mynach to Cwmbargoed. Merthyr Tydfil Council and Caerphilly Council commissioned this study to examine the practicality / cost and business case implications of extending the proposed service further north to Dowlais Top to the northeast of Merthyr Tydfil. The line is shown in Figure 1 below. Open Cast Workings Cwmbargoed Terminus, extent of current line. Bedlinog Figure 1 Study Area Issues The study is required to inform the Merthyr Tydfil Local Development Plan and the issue of retention of the former railway on embankment through the open cast site between Dowlais and Cwmbargoed. There are few residents and business in vicinity of the rail line north of Bedlinog, until it reaches the northern terminus at Dowlais Business Park. A new station there would provide an alternative to the existing services to / from Methyr Tydfil Station (to the west). The existing half hourly service runs to Cardiff via Pontypridd. The proposed new service would run to Cardiff via Ystrad Mynach and Caerphilly, offering alternative journey opportunities. Dowlais Top extension Report FV 2014 1 1.2 Study Requirements Our approach is consistent with the approach adopted in the previous SEWTA Rail Strategy studies. In particular; undertaking a pre-feasibility assessment of the scheme practicality and costs; forecasting of passenger demands and benefits and; appraisal of the business case. The study has involved specialists in railway design, operations and scheme appraisals. The study was required to compare the business case with and without further extension of passenger services to Dowlais Top and to provide a report highlighting the key issues and results to inform decision making by the local authorities. The demand forecasts needed to take into account the overlapping catchment areas in Merthyr Tydfil and potential abstraction. The operations assessment needed to make journey time assumptions and identify the requirements for both passenger and freight services and signalling / track requirements. The physical assessment needed to look at the practicality and costs of the line upgrade to passenger use. A key requirement was the assumption that the passenger services would be operating with the freight services still operating between the Cwmbargoed facility and Aberthaw power station. 1.3 Report Structure Following this introduction, Section 2 presents the operations assessment and operating costs, Section 3 presents the physical assessment and capital costs, Section 4 presents the demand and revenue forecasts and Section 5 presents the forecast benefits and scheme options appraisal. Section 6 presents the conclusions and recommendations. Dowlais Top extension Report FV 2014 2 2 Operations Assessment 2.1 Introduction The operations assessment has involved specification of assumptions regarding new stations, line speeds, signalling and infrastructure and section running times for passenger and freight services. Timetable options for one and two trains per hour options have been developed and the Sewta operating cost model applied. 2.2 Assumptions 2.2.1 Stations Table 2-A shows the new stations that are assumed to be constructed and distance from Ystrad Mynach South Junction. It is assumed that each platform would be of sufficient length for a 4-car train. Station Miles (from Ystrad Description Mynach South Junction) Ystrad Mynach 0.26 Single platform on the east side connected to the existing platforms by extension of the existing footbridge. PRM-TSI access required into existing car park. Nelson & Llancaiach 2.44 Single platform on the west side. Trelewis 3.53 Single platform on the west side.