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   Covers for open freight cars  evaluated  
In freight trains with a high share of empty open cars, car covers could substantially reduce air resistance.
Technology field: Aerodynamics and friction
open main section General information
close main section General criteria
  close sub-section Status of development: research & experiments
    (no details available)
  Time horizon for broad application: 2 - 5 years
    (no details available)
  Expected technological development: basically exploited
    (no details available)
    Motivation:
    Energy saving
  Benefits (other than environmental): small
   

Freight protection

In some cases the additional protection offered by covers could be an added value to service quality.

  Barriers: high
   

Freight handling

A major obstacle for covering freight cars will not be a technological one but rather one of organisation, since such a measure will be difficult to adapt to given operation patterns. The covers would complicate the loading and unloading process.

Availability

A major challenge could be the storage of the covers when they are not needed. For example a train transporting freight from A to B will not need any covers on the way from A to B but will need them on the way back since the car will be empty. A possible long-term solution could be flexible covers permanently installed on the freight car.

    Success factors:
    A convincing concept for the logistics and storage of the covers to ensure availability could eliminate organisational hurdles and scepticism.
  Applicability for railway segments: low
    Type of traction:  electric - DC, electric - AC, diesel
    Type of transportation:  freight
    This measure is only applicable to open freight cars.
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: (no data)
  Share of newly purchased stock: (no data)
    (no details available)
  Market potential (railways): medium
    (no details available)
    Example:
    (no details available)
open main section Environmental criteria
open main section Economic criteria
no data available Application outside railway sector (this technology is railway specific)
open main section Overall rating
References / Links:  Vollmer 1989
Attachments:
Related projects:
Contact persons:
 date created: 2002-10-17
 
 
© UIC - International Union of Railways 2003
 
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