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1 Condition- and risk-based track-maintenance of urban rail infrastructures

2 Contents 1. Introduction 2. Track Infrastructure Maintenance 3. Analysis, interpretation and prognosis 4. Future perspectives

3 1. Introduction Lines Line length Track length Stations Vehicles Metro 5 69 km 214 km Passengers Total public transport: 812 Mio. Data 2009 Tram km 422 km Data 2008

4 Modal split in Vienna MIT Target PT Target by foot + bike

5 Contents 1. Introduction 2. Track Infrastructure Maintenance 2.1 System Definition 2.2 Organisational Environment 2.3 Process Map 2.4 Operational Tasks (Rail) 2.5 Condition Monitoring 2.6 Risk Management 2.7 Lifecycle System-Model 3. Analysis, interpretation and prognosis 4. Future perspectives

6 2.1 System Definition Railway tracks: Rails Crossings Switches Expansion joints End stops Rail fasteners Sleepers Track bed Surface Visual inspection: Loupe Microscope, etc. Measurement equipment: Measurement cars Portable: Profile Tribometer, Torque, etc. Diagnosis systems: Switches Expansion joints Wayside equipment: Slopes Stations Emergency routes Other ways Tests: Non-destructive: Ultrasound Magnetic powder Tension gauge Destructive: Tension test Compression test Material analysis

7 2.2 Organisational Environment New structure and systems Process oriented Customer oriented QM-system according to EN SM-system as per Directive 2004/49/EG RM-system as per ONR49000/ISO31000

8 2.3 Process Map K U N D E N A N F O R D E R U N G Legal Compliance KERNPROZESS SICHERHEIT B63 KERNPROZESSE PRODUKTION B63 Risikomanagement Notfallmanagement Kernprozess 1 Kernprozess 2 Kernprozess 3 MANAGEMENT- UND SUPPORTPROZESSE B63 Werkzeug-, Maschinen-, Geräte- und Fahrzeuginstandhaltung Kommunikation und Mitarbeiterentwicklung Kaufm. Abwicklung Planung & Budgetierung K U N D E N Z U F R I E D E N H E I T Inspection Planned maintenance

9 2.4 Operational Tasks (Rail) rail wear surface damage rail fracture surface damage rail corrugation rail joint

10 2.5 Condition Monitoring Condition 100% Attention level Action Time Interval Intervention level Immediate attention level failed Failed time

11 2.6 Risk Management Has to be performed in case of Technical changes (e.g. rail wear) Conditions Changes of staff assignment Change of staff responsibilities Changes of documents relevant for operational safety External legal or operational requirements Changes in and of processes Two stages Risk assessment Risk analysis Track geometry EN Adapted limit values Erfordernis Erkenntnisse Vorlagen FO Risikoanalyse nein ja Start Ersteinschätzung ob Risikobetrachtung ausreichend Risikobetrach tung? ja Risikobetrachtung Risiko- Analyse? nein Einleiten der nächsten Schritte Maßnahmen erforderlich? ja Maßnahmen zur Senkung des Risikos veranlassen Controlling der Umsetzung und Wirksamkeit von Maßnahmen nein Rail Traffic Standard EN50126 (RAMS) Archivieren der Ergebnisse Ende Risk Management Standards ONR49000/ISO31000

12 Titelmasterformat Relation between durch Causes Klicken and Consequences cause 1 cause 2 cause n consequence 1 = cause n+x consequence m indicator 1 indicator 2 indicator p monitoring onboard wayside

13 Cause Consequence Matrix Probability Effect Source: Safety Related Fault States in Operation, Andreas Schöbel, University of Technology, Vienna, Institute of Transportation Research Center for Railway Engineering, Traffic Economics and Ropeways,

14 Titelmasterformat durch Klicken Track object state diagram 2.7 Infrastructure Lifecycle Model EN :2008 Attention- Level (AL) Intervention- Level (IL) Immediate Attention-Level (IAL) Plan System acceptance Removal State A State B State C State D Transitions Construction Deterioration Inspection (plus measurement vehicle results) including crosschecks of D results of the measurement vehicle Routine maintenance including corrective actions Correctice maintenance 1 Corrective maintenance 2 Renewal

15 Level Definition Absolute limit FILE= S DAT STYP= S48-U DATA Symm SFL Miniprof IPRF= :---- RSFL= 7.64 SNEIG= WEAR= Lateral wear [mm]

16 Contents 1. Introduction 2. Track infrastructure maintenance 3. Analysis, interpretation and prognosis 4. Future perspectives

17 Titelmasterformat Structural Integrity durch Klicken Evaluation Structural Integrity Report, Proof of Safety Planzustand Sicherheits- Grenzwert für Schwelle, Betriebseinstellung Maßnahme erforderlich Aufmerksamkeitsschwelle Neubauabnahme Eingriffsschwelle Zustand 1 Zustand 2 Zustand 3 Zustand 4

18 Titelmasterformat Structural Integrity durch Evaluation Klicken Wear Prognosis timelines a_h = lateral wear, a_v = height wear of rail head Source: Gleis-Instandhaltungsstrategie der Wiener Linien, 17. Int. Tagung Fahrwegoptimierung, , Vienna, Dr. Andreas Oberhauser, Wiener Linien GmbH&Co KG

19 Titelmasterformat Structural Integrity durch Evaluation Klicken Rail Replacement Simulation timelines Source: Gleis-Instandhaltungsstrategie der Wiener Linien, 17. Int. Tagung Fahrwegoptimierung, , Vienna, Dr. Andreas Oberhauser, Wiener Linien GmbH&Co KG

20 Contents 1. Introduction 2. Maingenance Management 3. Analysis, interpretation and evaluation 4. Future perspectives

21 fractinspect Automatic Surface Inspection Digital image processing Detection of rail surface damages in an initial state, e.g. Micro-cracks, white lines Beam type surface breakouts Automatic identification Automatic curvature-based location of the damage Field side Gauge side

22 Predictive Maintenance Outlook Measurement car upgrade Ultrasound Eddy current Unattended Track Recording Systems Measurement and diagnostic system for specific components Sleepers Temperature sensor und voltmeter on tracks Visual inspections and manual measurements portable equipment Monitoring of vehicle behaviour accelerations velocities R&D-projects fractinspect uvwave timelines

23 Further information Dipl.-Ing. Edgar Fischmeister Department manager, B63 Track Infrastructure Wiener Linien GmbH&Co.KG Erdbergstraße 202, 1031 Vienna Phone: +43 (0) Fax: +43 (0) Website: Dipl.-Ing. Gerhard Weinzinger Managing director Technoma GmbH Jakob Thoma Str. 7, 2340 Mödling/Vienna Phone: +43 (0) Fax: +43 (0) Website:

24 Thank you for your attention!