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Technology
evaluated
Overall Potential
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Barriers
Benefits (other than environmental)
Energy efficiency (single vehicles)
Status of development
Technology field
Vehicle - fix costs
Transversal flux motor
promising
Elimination of dining car
not promising
Fuel or oil additives for diesel traction
not promising
Optimisation of traction software
promising
Aerodynamic optimisation of pantographs
interesting
Aluminium car-body
very promising
Fibre reinforced polymers
promising
Sandwich structures
promising
Light coach interior equipment
promising
Single-axle bogies
very promising
Articulated trains (Jakob-type bogies)
promising
Mechatronic innovations for future running gear
very promising
Streamlining of head and tail
not promising
Streamlining of train sides and underfloor areas
interesting
Bogie fairings
very promising
Aerodynamic ordering of freight cars
promising
Double-decked stock
very promising
Wide-body stock
very promising
Multiple units (MUs) vs. loco-hauled trains
very promising
Medium-frequency transformer
very promising
HTSC transformer
very promising
IGBT
very promising
Wheel-mounted permanent magnet synchronous motor
promising
Switch-off of traction group
very promising
Ventilation control (in new stock)
very promising
Ventilation control (retrofit)
promising
Loss reduction by optimised power intake
interesting
Upgrading of engines
interesting
Future developments in diesel technology
promising
Common Rail
very promising
Biodiesel
not promising
Diesel-electric vehicles with energy storage
promising
Regenerative braking in 16,7 Hz, 15 kV systems
very promising
Radio-controlled double traction in freight trains
not promising
Regenerative braking in freight trains
interesting
On-board use of braking energy in diesel-electric stock
very promising
Revision of limit value for longitudinal forces in the train
interesting
Inverter unit for DC substations
promising
On-board energy storage in DC systems
promising
Stationary energy storage
promising
Fly-wheels (storage technology)
promising
Batteries (storage technology)
interesting
Double-layer capacitors (storage technology)
very promising
Superconducting Magnetic Energy Storage (storage technology)
not promising
PEM fuel cell
interesting
Natural gas
interesting
Hydrogen engine
interesting
Gas turbine
interesting
Magnetic levitation technology (maglev)
promising
Swissmetro
interesting
Coach insulation
promising
Modification of target temperature in passenger coaches
very promising
Smart windows
interesting
Improved operation control for air-conditioning
interesting
ORC technology to use waste heat in MUs
interesting
Heat exchangers to use waste heat in MUs
promising
CO2-based demand control for coach ventilation
very promising
Excess ventilation
promising
Control of comfort functions in parked trains
very promising
Coupling of parked trains for common energy supply
interesting
Energetic optimisation of timetable
promising
Systematic train delays
interesting
Energy efficient driving strategies
very promising
Energy efficient driving by low-tech measures
very promising
Driving advice systems in suburban operation
very promising
Driving advice systems in main line operation
very promising
Driving advice systems in freight operation
promising
Automatic train control
interesting
Optimisation of train operation by control center
very promising
Moving block
promising
Demixing of railway infrastructure
interesting
Speed harmonisation
not promising
Self-propelled freight cars
interesting
Modular train sets
promising
Virtually coupled trains
promising
LCC-driven procurement
very promising
Reference cycle for energy efficiency
promising
Bonus/penalty rules
very promising
Energy meters (electric)
very promising
Database of traction consumption
promising
Incentives for drivers
interesting
Training programs to raise awareness of personnel
very promising
Covers for open freight cars
promising
Re-engining of diesel stock (replacement of engine)
very promising
Diesel-mechanic transmission
promising
Regenerative braking in DC systems
very promising
Regenerative braking in 50 Hz, 25 kV systems
very promising
Lubrication of wheels and tracks
interesting
Diesel flow meters
interesting
Passenger information to reduce boarding time at stations
promising
Hybrid locomotives
SOTRELE:Real Time Power and Energy Optimisation System
Kinetic Energy Storage System (KESS)
Automatic Train Control 2
Fuel Stabilizer
Space Utilization
Flywheel based WESS
© UIC - International Union of Railways 2003