HS2 A National Strategy for High Speed Rail. Tim Smart Head of Engineering & Operations HS2 Ltd

Transcription

1 HS2 A National Strategy for High Speed Rail Tim Smart Head of Engineering & Operations HS2 Ltd

2 Agenda 1. HS2 New National Backbone Why the UK needs HS2 The HS2 Route Hybrid Bill 2. Engineering the Route Alignment Environmental Intrusion Track Issues

3 Agenda 1 1. HS2 A New National Backbone Why the UK needs HS2 The HS2 Route Hybrid Bill

4 Britain is Growing Population of England m m m 4

5 Rail Demand has Doubled 5

6 Transport Matters to the Economy 6

7 We Have Upgraded Classic Rail The alternative would close the railway at weekends for 14 years 7

8 Guidelines Principles: Original Remit Maximise benefit for the investment Capacity expansion for long distance passenger growth Release existing lines for commuter / freight growth Connectivity between major cities Through running beyond new line Contribute to mode shift from road and air Compatibility with HS1 / European HS network A new passenger transport backbone, not a replica of the existing railway Lord Adonis 8

9 HS2 Scope Two phases - first live 2026 Trains transition to and from Network Rail & HS1 Max speed 360kph (400kph alignment balanced with environmental impact ) Up to 18 tph scheduled every 3 mins ETCS Level 2 no signals Automatic train Operation 400m trains with 1,100 seats 200m trains 550 seats 9

10 The Initial Y Network London to West Midlands 1-24 to 0-49 Manchester 2-08 to 1-13 Leeds 2-15 to 1-20 Scotland 4-20 to 3-30 Birmingham to Manchester 1-34 to 0-40 Leeds 2-05 to 1-05 Heathrow to Manchester 1-15 Paris

11 The Initial Y Network Scotland Newcastle London to West Midlands 1-24 to 0-49 Manchester 2-08 to 1-13 Leeds 2-15 to 1-20 Scotland Manchester Birmingham Leeds 4-20 to 3-30 Birmingham to Manchester 1-34 to 0-40 Leeds 2-05 to Heathrow London Heathrow to Manchester 1-15 Paris 2-40

12 HS2 will treble the number of seats into Euston from 11,300 to 34,900 an hour

13 13 Delivers the equivalent of two dual 3 lane motorways

14 HS2 Could Boost Annual Productivity Cambridge economy 250,000 jobs 5bn tax receipts Total impact for UK economy: 15bn of which results from Rail connectivity to businesses: 13.5bn Rail connectivity to labour: 1.6bn Car connectivity to labour and businesses: 0.2bn 14 * Note: totals may not sum due to rounding

15 Developing HS2: Phase One (London and West Midlands) 2012: Decision on preferred route Property compensation consultation 2013: Draft environmental statement consultation Hybrid bill submitted to Parliament 2015: Target date for Royal Assent 2026: Opens to passengers

16 Developing HS2: Phase Two (Leeds, Manchester, Heathrow) 2012: Station and route options submitted to Sec of State Sec of State announces initial preferences 2013/14: Formal consultation on preferred route, then decision Next Parliament: Second hybrid bill 2033: Opens to passengers 16

17 Hybrid bill The act will give powers to: Build and operate HS2 Acquire and lease land Alter roads Modify statutory undertaker s equipment Deposit hybrid bill by end of 2013 Royal assent 2015

18 Working towards hybrid bill for phase 1 Design of line and stations Detailed measures e.g. earth building, landscaping Construction methods and sites Outline design of stations, viaducts and bridges etc Land referencing Managing petitioners

19 Timeline Date Milestone 2013 Consultation on preferred route, stations and depots for Phase Two launches Safeguarding Consultation for Phase One Nov 2013 End of 2014 Hybrid Bill for Phase One submitted to Parliament Government s announcement of final decision on the chose route, station and depots for Phase Two Hybrid Bill process for Phase One continues 2015 Commence engineering design, environmental impact assessment and preparation of Hybrid Bill for Phase Two Target date for Royal Assent to Hybrid Bill for Phase One, containing legal powers to construct Phase One Next Parliament Deposit Hybrid Bill for Phase Two 2016/2017 Construction on Phase One commences 2026 Phase One opens to passengers 2033 Phase Two opens to passengers

20 Agenda 2 1. Engineering the Route Alignment Environmental Intrusion Track Issues

21 Britain is Densely Populated 21

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27 HSR System Balance Engineering alignment Environmental Factors Horizontal curve radius 8250m Vertical curve radius 56000m Limiting gradients 2.5% Max 3.5% Local Communities Ecology Areas of beauty & scientific interest Physical Barriers Other Infrastructure Topography 27

28 Proposed scheme for consultation Sift Sift Sift Sift Secretary of State review SofS informal engagement Long list of options Short list of options Options for refinement Finalised options Initial preferred scheme AoS Options Report Sustainability Summary Proposed scheme Sustainability Statement Public consultation Preferred scheme Environmental Statement 28

29 Manchester route evolution

30 As options reduce, engineering/appraisal detail increases

31 Key Issues Noise and Vibration Visual Impact. Direct airborne noise Groundborne noise & Vibration KEY Groundborne Noise Perceptible Vibration Issues resolved through Design

32 Noise Modelling Prediction of Impacts 4 point source model (D. Thompson) Soundfield recordings on LGV-Est Corrections for rise/fall times Benchmark validation Strategic geospatial impact model

33 STEP 2: Accurate Predictions Accurate Predictions V rms [db re 1e-6 mm/s]

34 Rail Deflection [mm] Insertion Gain re. Reference Track [db] Track Work Prediction Models Part of Carriage Mass, M C Part of Bogie Mass, M B Wheel Mass, M W Rail Mass, M R Secondary Suspension, k s Primary Suspension, k p Contact Stiffness, k c Vibration Insertion gain Insertion Gain Vibration Amplification Vibration Reduced Frequency [Hz] Sleeper, Baseplate or Ballast Mass, M S Impedance of Formation or Tunnel Elastic Rail Pad, k r Ballast, Pad, or Ballast Mat k ballast or k pad Static/Dynamic Rail Deflection Rail Deflection Differential Rail Rail Rail Stress Other Parameters Deflection Shock Loading Rail Stress Parameters Deflection Loading Considered Distance Along Rail [m]

35 Increasing Groundborne Noise Reduction Increasing Groundborne Noise Reduction Increasing Capital Cost Increasing Capital Cost Ballast Track Solutions BALLAST OPTIONS Standard ballast a) Standard Ballast Ballast with soft rail pads b) Ballast with soft rail pads Ballast with sleeper soffit pads c) Ballast with Sleeper Soffit Pads d) Ballast with Under Ballast Mat Ballast with under Ballast Mat

36 36 Tunnel noise and vibration control

37 Viaduct Noise Barriers ORIGINAL DESIGN FINAL EFFICIENT DESIGN Parapet Noise Barrier Innovative Low-Level Noise Barrier More Economic, Narrower, Less Deep and Less Thick Structure

38 Design approach Integrated - noise mitigation Visual screening Landscape integration Return to agriculture Minimise Rail Land Protecting environmental/ heritage features

39 HS2 Design guidance

40 Trains: Current HS train sound (360 km/h) Higher noise Lower noise Image based on SNCF 1/3 Octave Noise Map of TGV at 360km/hr modified to represent L paeq using output from TWINS modelling 40

41 Assumed mitigated train proven low noise pantographs Current European TSI compliant trains do not have pantographs / wells designed to minimise aerodynamic noise Current Asian HS trains DO have pantographs / wells designed to minimise aerodynamic noise (Shinkansen N700)

42 Protecting Landscape and People 42

43 Re-think Ballasted Track? 43

44 Track system design principles Compliant with legislation, TSIs and Sponsor s requirements Safety by design Best practice for high speed railways Sustainable track system maintenance and renewal strategy Reliability and therefore performance Low whole life costs High level of passenger comfort

45 Track System Design Current focus on system design to achieve high performance and reliability, with lowest whole life costs Track alignment fit for 400kph although maximum design speed 360kph Passenger comfort important 18 trains/hour (>77 MGT) Track system behaviour under loading and interaction with rolling stock Includes ground conditions and earthworks Sustainable Trackform High performance, low life cycle costs Ballast track, slab track? Alstom AGV in Italy

46 Geology and Earthworks Accurate prediction of settlement and especially heave is required to optimise design and minimise maintenance liability Determine critical track velocity and Rayleigh waves propagation Effective and cost-efficient means of ground improvement for different geohazards

47 So... the case for Ballast Environment Improved acoustic properties Improved sustainability Ground Movement/Vibration Better accommodation of ground movement especially in the longer term. Cost Possible Improvements in vibration characteristics. Cost of maintenance over time, transitions, ability to maintain Lower capital cost of construction and improved construction time Likely to lead to less costly track track geometry supporting structures. Design Life Better understanding of renewal strategy and life extension in service 47

48 HS2 will transform the Economic Geography of the country

49 Judged By Future Generations 49

50 Judged By Future Generations Thank you for Listening Tim Smart HS2 Ltd 50