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Single-axle bogies |
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| Due to the significant share of bogies in overall train mass, single-axle running gear can make an appreciable contribution to mass reduction. Curve-steered bogies with self-steering wheelsets (KERFs) are a mature single-axle solution for local and regional trains.
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Technology field: Mass reduction
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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: very promising |
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Time horizon: mid-term |
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Single-axle running gear are a very promising concept for replacing heavy 2-axle bogies in mid-term perspective. Energy efficiency effects are especially high in local and regional transport. In this railway segment, the Alstom KERFs represent a mature technology with first experience from regular service. Future developments and refinements point in the direction of mechatronic control. In long term perspective, a complete technological migration from conventional running gear to single-axle concepts in local and regional passenger transport should be aimed at. |
 date created: 2002-10-09 |
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| © UIC - International Union of Railways 2003 |
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