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Graz University of Technology Institute for Railway Engineering and Transport Economy . Sustainable Track Strategies EU-Russia Rail Research Workshop, Moscow. Ass.Prof . Dipl.-Ing. Dr. techn. Stefan Marschnig Univ.-Prof . Dipl.-Ing. Dr. techn. Peter Veit Ing . Rainer Wenty.

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  1. Graz University of Technology Institute for Railway Engineering and Transport Economy Sustainable Track Strategies EU-Russia Rail Research Workshop, Moscow Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig Univ.-Prof. Dipl.-Ing. Dr. techn. Peter Veit Ing. Rainer Wenty  www.ebw.tugraz.at

  2. Life Cycle Cost of Track Superstructure The aim of any track strategy is to reduce total costs of superstructure. Knowing the cost distribution assumptions can be made: Depreciation is the dominating cost fraction (re-investment cost/service life) Costs of Operational Hindrances (COH) can be quite high 50-80% Maintenance costs reach some 25% in maximum up to 30% max 25% All these cost proportions have interactions and therefore cannot be treaded separately!

  3. Investment Strategies Depreciation is calculated as (Re-)Investment costs Service life Reducing investment costs leads to lower initial quality followed by …either reduced service life – and thus a counterproductive effect keeping depreciation at least at the same level. …or to increasing maintenance costs (and COH) resulting in higher total costs. Depreciation can only be reduced in increasing service life, even in increasing the investment costs!

  4. Investment Strategies Examples: Higher quality of materials Concrete sleepers with Under Sleeper Pads (USP) Getzner

  5. Investment Strategies Examples: Higher quality of materials Concrete sleepers with Under Sleeper Pads (USP) Ultra-long rails with high steel grades in the rail head (R350HT) voest alpine

  6. Investment Strategies Examples: Higher quality of materials Concrete sleepers with Under Sleeper Pads (USP) Ultra-long rails with high steel grades in the rail head (R350HT) More continuity in track Through-going load distribution layers Swietelsky

  7. Investment Strategies Examples: Higher quality of materials Concrete sleepers with Under Sleeper Pads (USP) Ultra-long rails with high steel grades in the rail head (R350HT) More continuity in track Through-going load distribution layers Continuously working fast relaying trains TU Graz

  8. Investment Strategies Examples: Higher quality of materials Concrete sleepers with Under Sleeper Pads (USP) Ultra-long rails with high steel grades in the rail head (R350HT) More continuity in track Through-going load distribution layers Continuously working fast relaying trains On track flash butt welding Plasser&Theuer

  9. Investment Strategies Examples: Higher quality of materials Concrete sleepers with Under Sleeper Pads (USP) Ultra-long rails with high steel grades in the rail head (R350HT) More continuity in track Through-going load distribution layers Continuously working fast relaying trains On track flash butt welding Perfect water draining system ÖBB

  10. Maintenance Strategies Reducing maintenance (costs) is dangerous! Most important maintenance job: Drainage cleaning Only adequate maintenance ensures that high initial quality is transposed to a long service life.

  11. Maintenance Strategies Reducing maintenance (costs) is dangerous! Most important maintenance job: Drainage cleaning High quality maintenance: Continuously tamping including dynamic stabilising Only adequate maintenance ensures that high initial quality is transposed to a long service life. Swietelsky

  12. Maintenance Strategies Reducing maintenance (costs) is dangerous! Most important maintenance job: Drainage cleaning High quality maintenance: Continuously tamping including dynamic stabilising Preventive Grinding Integrated Maintenance: Tamping and Grinding Only adequate maintenance ensures that high initial quality is transposed to a long service life.

  13. Availability Strategies Costs of operational hindrances are kept low, if works are executed as fast as possible (not reducing quality!) track can be operated without speed restrictions directly after the work (e.g. stabilising) failures are kept low And if maintenance demands are low, of course!

  14. Sustainable Track Strategies… … are high quality strategies! … reduce all cost proportions at the same time. … have to be followed consistently. Further aspects: Quality monitoring (recording cars) Prognosis and planning of maintenance and re-investment demands Inventing of new technologies in order to covering increasing loads Insuring good vehicle quality (construction and maintenance)

  15. Graz University of Technology Institute for Railway Engineering and Transport Economy Thank you for your attention! stefan.marschnig@tugraz.at ÖBB (Piereder)  www.ebw.tugraz.at

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