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