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   Aerodynamic ordering of freight cars  evaluated  
Many freight trains are mixed, i.e. they are composed of different types of freight cars. In mixed trains air resistance can be substantially reduced by ordering the freight cars in an aerodynamically favourable manner without any changes on the rolling stock itself.
Technology field: Aerodynamics and friction
close main section General information
  open sub-section Description
close main section General criteria
  open sub-section Status of development: research & experiments
  Time horizon for broad application: 2 - 5 years
  Expected technological development: not applicable
  Benefits (other than environmental): none
  Barriers: high
  Applicability for railway segments: high
    Type of traction:  electric - DC, electric - AC, diesel
    Type of transportation:  freight
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: not applicable
  Share of newly purchased stock: not applicable
  Market potential (railways): not applicable
close main section Environmental criteria
  open sub-section Impacts on energy efficiency:
  Energy efficiency potential for single vehicle: 5 - 10%
  Energy efficiency potential throughout fleet: 1 - 2%
  Other environmental impacts: neutral
close main section Economic criteria
  open sub-section Vehicle - fix costs: none
  Vehicle - running costs: significant reduction
  Infrastructure - fix costs: none
  Infrastructure - running costs: increased
  Scale effects: not applicable
  Amortisation: not applicable
no data available Application outside railway sector (this technology is railway specific)
close main section Overall rating
  open sub-section Overall potential: promising
  Time horizon: mid-term
References / Links:  Vollmer 1989
Attachments:
Related projects:
Contact persons:
 date created: 2002-10-09
 
 
© UIC - International Union of Railways 2003
 
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