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Confrence TechnoArk 2016
Energy efficiency with
adaptive control ADL
SBB Energy Strategy:Five strategic objectives.
in nuclear power
SBB Infrastructure Energy Management 2016 3
Our installations and our challenges.
SBB Infrastructure Energy Management 2016 4
By 2030: The expansion of
railway services will require
25% more energy and even
40% at peak times.
Energy-saving programme objectives and structure.
Anchor energy efficiency in the company.
Efficiency on the move:
Target of 600 GWh/year from 2025.
Create transparency and manage energy consumption.
SBB Infrastructure Energy Management 2016 5
Rail servicesEngineeringDevelopment of
SBB Infrastructure Energy Management 2016 7
As demand is constantly increasing, SBB is reaching its limits in
terms of network capacity and timetable stability.
Train-path kilometres are expected to increase by 30% between
now and 2030.
The high level of integration between planning (scheduling) and
implementation (the performance of our train drivers) improves
precision in the production system. Despite the extra strain,
timetable stability is increased.
Increased precision in production.
Calculating energy-optimised and ergonomic journey lines.
Supporting train drivers in their choice of driving strategy.
Reduced energy consumption when driving.
Reduction in avoidable stops at signals.
Increasing the number of braking operations with electrical
SBB AG Infrastructure ADL Project 22.04.2014
Energy demand for a stop.
100 km/h 0 km/h 100 km/h
SBB Infrastructure Energy Management 2016 9
Simplified schematic representation:
A freight train (1,200 t) is travelling on route AB at the permitted
speed of 100 km/h.
Full stop at point x due to red signal:
Energy needed for the conflict stop: 147 kWh
Energy demand for a stop.
SBB Infrastructure Energy Management 2016 10
Speed in km/h.
The link between dispatchers and train
drivers.SBB Infrastructure Energy Management 2016 11
ADL the link between dispatchers
and train drivers.SBB Infrastructure Energy Management 2016
Rail Control System (RCS)
- Identifying occupation conflicts
- Determining the order of trains
- Identifying unplanned signal stops
- Defining the optimisation corridor
GSM-PLEA2 / LEA3
- Calculates the optimum speed profile
- Sends driving recommendations to the
approx. 2 sec.
Conflict pointConflict detection RCS
Train speed profile (static)
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Example of ADL optimisation
Fast slow fast
522 50232 1822
Vopt 50 km/hVopt 100 km/hVopt 100 km/h
Freight train 50232 is optimised between 522 and 1822. Here, the system must prevent 50232
from having to make an unplanned stop while ensuring that 1822 does not arrive late in Lenzburg.
In order to solve this problem, ADL first calculates a high speed. As soon as 1822's arrival in
Lenzburg is ensured, Vopt can be reduced to allow the train to continue on behind 522 without any
ADL ENDADL END
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42 GWh: Wil, St. Gallen
Energy saved in 2015.
SBB Infrastructure Energy Management 2016 15
Watt dOr 2016:
"The Watt d'Or 2016 in the
mobility goes to SBB for
the innovative ADL system
a system like no other in
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Thank you for your attention.