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Public-images-osm logo.svg rack
Crémaillère - Panoramique des Dômes.jpg
A rack allows operation of trains on very steep gradients. Edit or translate this description.
Group: Properties
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasuse on relations unspecified
Status: unspecified


The key rack=* is used in combination with railway=* to denote a cog railway, rack-and-pinion railway or rack railway.

This type of railway has a toothed rack rail, usually between the running rails. The trains are fitted with one or more cog wheels or pinions that mesh with this rack rail. This allows the trains to operate on very steep gradients (see Wikipedia for more details). These are common in alpine regions of european countries, including Austria and Switzerland.


rack=yes denotes rack of unknown type. Otherwise, the keys value denotes the specific type. Well known types are

  • riggenbach
  • strub
  • abt
  • locher