page_title: Buffer stop
hierarchical_section_title: Buffer stop
context_page_description: A buffer stop, bumper, bumping post, bumper block or stopblock, is a device to prevent railway vehicles from going past the end of a physical section of track.
  The design of the buffer stop is dependent, in part, on the kind of couplings that the railway uses, since the coupling gear is the first part of the vehicle that the buffer stop touches. The term "buffer stop" is of British origin, since railways in Great Britain principally use buffer-and-screw couplings between vehicles.
context_section_description: A buffer stop, bumper, bumping post, bumper block or stopblock (US), is a device to prevent railway vehicles from going past the end of a physical section of track.
  The design of the buffer stop is dependent, in part, on the kind of couplings that the railway uses, since the coupling gear is the first part of the vehicle that the buffer stop touches. The term "buffer stop" is of British origin, since railways in Great Britain principally use buffer-and-screw couplings between vehicles.
caption: Two views of a Hayes-built bumper at the Linden Railroad Museum, Linden, Indiana. This design accommodates the AAR coupler.
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