RAIL PROJECTS AND TRACK INSTALLATION SUPPORTED BY LONG-TERM TRACK MAINTENANCE SOLUTIONS

Today´s Challenges of the Rail Infrastructure Industry Economic considerations drive railway industry in an increasing complex and competitive environment Life Cycle Cost are predominant today Upfront investments are weighted against maintenance cost Clear cut requirements with regard to construction, operation and maintenance is required Total Service Contractors offer total project management - planning, construction and maintenance in certain instances even financing – (ppp-models)

Requirements to be met by the track (1) Tracks have to be laid and maintained to provide a cost effective infrastructure German Federal Railway defined in their Track Strategy project different levels of requirements: Mandatory Requirements Tolerated Requirements Subsidiary Requirements

Requirements to be met by the track (2) and summarized criterias: Overall operational model Availability Economical Riding Comfort Construction and Maintenance Strategies Maintainability Possible Alterations Renewal Investments Reliable supply of components Risk/Failures Safety Damage Symptoms and restoration after derailment Repair of possible fault symptoms in respective tracks Other Requirements

Concept of Life Cycle Cost (LCC 1) LCC Components and their interaction Emergency Repairs Maintenance Investment Inspection and Diagnosis

Concept of Life Cycle Cost (LCC 2) The LCC Model – summarised in brief Life cycle costs can only be optimised as a whole Each cost component of LCC shall be analysed over an entire life cycle Different track systems (e.g. ballasted track vs. ballastless track) can be compared by defining the individual value of the individual cost component according to the track system under review

Ballasted Track Line Wels – Linz / Austria

Track Construction and Maintenance (1) Ballasted Track Maintenance intervals – objective: achieve longest possible intervals

Tamping Intervals For Ballasted Tracks Depending On The Traffic Load

Track Construction and Maintenance (2) Ballasted Track Maintenance Intervals – objective: achieve longest possible intervals Initial Track Quality – substructure Permanent Way Ballast – quality of ballast Maintenance of Rail Surface – grinding a key operation

Grinding Intervals For Ballasted Tracks Depending On The Traffic Load

Track Construction and Maintenance (3) Ballasted Track Maintenance Intervals – objective: achieve longest possible intervals Initial Track Quality – substructure Permanent Way Ballast – quality of ballast Maintenance of Rail Surface – grinding a key operation Infrastructure Elasticity

Ballastless Track – Loetschberg Tunnel / Switzerland

Track Construction and Maintenance (4) Ballastless Track – an alternative to Ballasted Track Why ballastless track? A cost effecient solution at least in certain projects Sleeper Pads An additional low cost improvement

General Contractor in Rail Engineering The benefits All from one partner; use of synergies, reduced friction No planning and functionallity risk – all is general contractor‘s responsibility High level of schedule reliability Easier Budget and Cost control Complex logistical and construction site safety issues are centralized and in one hand

Organisation Chart of Loetschberg Tunnel Project

Diagram of the Loetschberg Tunnel

Details for Track Construction Timing: Design: 10/2002 – 03/2004 Trials and Preparation: 01/03 – 09/04 Realisation: 04/2004 – 10/2006 Length of track: Total 57 km, 51 km in tunnel Slab track system: LVT / Sonneville Sleepers: 171‘000 blocks type LVT (60 cm spacing) Rails: UIC 60: 7.000 tons High speed-turnouts: 2 on slab-track, 1 on ballasted track Concrete: 80‘000 m³ Max. Operating speed: 250 km/h (in tunnel) Totel value track construction: Euro 85 MIO

Requirements on Track Quality Useful life for basic track layer, fill-in concrete (2nd pour) and sleepers at least 50 years Resisting high impact and providing the possibility for simple maintenance Keeping track tolerances of +/- 2 mm in horizontal und vertical direction Keeping track gauge of 1435 mm -1/+ 3 mm The requirements on the quality of the concrete surface regarding levelling and cleanliness are very high Further impacts due to high utilization of the tunnel, maximum speed, axle loads, corrosion, etc.

Logistic Challenge Real logistic challenge in single-track tunnel Just one single access route for transport and supply Construction of various installations and temporary yards for efficient performance Just-in-time co-ordination to guarantee material supply in all fields of activities High speed of transport (about 60 km/h) requires special safety measures (control centre, identification of position) Co-ordination and interface management with tunnel carcass construction, overhead line construction, mechanical equipment, cable laying and safety installations

Conclusions Well defined and managed technical, functional and performance requirements in terms of construction, operation and maintenance underpin and are the essentials for the commercial success of a project and the subsequent cost-effective operation of a railway infrastructure High quality execution of works and an optimised maintenance regime are still a must for a successful Life cycle project approach For this reason the selection of the right partner – experience combined with enthusiasm for the project and commitment of executing staff

THANK YOU FOR YOUR ATTENTION

MSc Hubert Rhomberg info@bahntechnik.com www.bahntechnik.com