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TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track StrategiesGraz University of Technology
Institute for Railway Engineering and Transport Economy
www.ebw.tugraz.at
Sustainable Track StrategiesEU-Russia Rail Research Workshop, Moscow
Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Univ.-Prof. Dipl.-Ing. Dr. techn. Peter VeitIng. Rainer Wenty
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Life Cycle Cost of Track SuperstructureThe 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)
50-80%Costs of Operational Hindrances (COH) can be quite high
up to 30%Maintenance costs reach some 25% in maximummax 25%
All these cost proportions have interactions and therefore cannot be treaded separately!
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesDepreciation is calculated as
(Re-)Investment costsService 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!
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesExamples:
Higher quality of materialsConcrete sleepers with Under Sleeper Pads (USP)
Getzner
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesExamples:
Higher quality of materialsConcrete sleepers with Under Sleeper Pads (USP)Ultra-long rails with high steel grades in the rail head (R350HT)
voest alpine
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesExamples:
Higher quality of materialsConcrete sleepers with Under Sleeper Pads (USP)Ultra-long rails with high steel grades in the rail head (R350HT)
More continuity in trackThrough-going load distribution layers
Swietelsky
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesExamples:
Higher quality of materialsConcrete sleepers with Under Sleeper Pads (USP)Ultra-long rails with high steel grades in the rail head (R350HT)
More continuity in trackThrough-going load distribution layersContinuously working fast relaying trains
TU Graz
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesExamples:
Higher quality of materialsConcrete sleepers with Under Sleeper Pads (USP)Ultra-long rails with high steel grades in the rail head (R350HT)
More continuity in trackThrough-going load distribution layersContinuously working fast relaying trains On track flash butt welding
Plasser&Theuer
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Investment StrategiesExamples:
Higher quality of materialsConcrete sleepers with Under Sleeper Pads (USP)Ultra-long rails with high steel grades in the rail head (R350HT)
More continuity in trackThrough-going load distribution layersContinuously working fast relaying trains On track flash butt welding
Perfect water draining system
ÖBB
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Maintenance StrategiesReducing maintenance (costs) is dangerous!
Only adequate maintenance ensures that high initial quality is transposed to a long service life.
Most important maintenance job:Drainage cleaning
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Maintenance StrategiesReducing maintenance (costs) is dangerous!
Only adequate maintenance ensures that high initial quality is transposed to a long service life.
Most important maintenance job:Drainage cleaning
High quality maintenance:Continuously tamping including dynamic stabilising
Swietelsky
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Maintenance StrategiesReducing maintenance (costs) is dangerous!
Only adequate maintenance ensures that high initial quality is transposed to a long service life.
Most important maintenance job:Drainage cleaning
High quality maintenance:Continuously tamping including dynamic stabilisingPreventive GrindingIntegrated Maintenance: Tamping and Grinding
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
Availability StrategiesCosts 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!
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track Strategies
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 demandsInventing of new technologies in order to covering increasing loadsInsuring good vehicle quality (construction and maintenance)
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Moscow, 16.10.2012
Sustainable Track StrategiesGraz University of Technology
Institute for Railway Engineering and Transport Economy
stefan.marschnig@tugraz.at
www.ebw.tugraz.at
Thank you for your attention!
ÖBB (Piereder)
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