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Sustainable Track Strategies
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
Moscow, 16.10.2012
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig
Sustainable Track Strategies
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)
50-80%
up to 30%
max 25%
Costs of Operational Hindrances (COH) can be
quite high
Maintenance costs reach some 25% in
maximum
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 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!
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 Strategies
Examples:
Higher quality of materials
Concrete 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 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
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 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
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 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
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 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
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 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
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 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.
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 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
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 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.
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 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!
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 reinvestment demands
Inventing of new technologies in order to
covering increasing loads
Insuring 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 Strategies
Graz University of Technology
Institute for Railway Engineering and Transport Economy
Thank you for your attention!
[email protected]
ÖBB (Piereder)
 www.ebw.tugraz.at
Moscow, 16.10.2012
TU Graz I Institute for Railway Engineering and Transport Economy I Ass.Prof. Dipl.-Ing. Dr. techn. Stefan Marschnig