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Streamlining of train sides and underfloor areas |
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evaluated |
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A great part of the air resistance is due to surface friction along the train sides and roofs, and to the air drag of the underfloor equipment. There is some potential for improvement by streamlining the outer shell, optimising coach transition areas and underskirting.
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Technology field: Aerodynamics and friction
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General information
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General criteria
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Environmental criteria
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Economic criteria
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Application outside railway sector (this technology is railway specific)
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Overall rating
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Overall potential: interesting |
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Time horizon: mid-term |
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The theoretical potential for improving the aerodynamics of train sides and underfloor equipment is considerable. However, the possibilities for an implementation of many measures such as a reduction of the gap space between consecutive coaches are rather limited. Feasibility of underskirting seems higher. Some of the measures should be given more emphasis in procurement of new high-speed stock. |
date created: 2002-10-09 |
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© UIC - International Union of Railways 2003 |
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