From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
A pocket track on the eBART line

A pocket track, tail track, or reversing siding (UK: centre siding) is a rail track layout which allows trains to park off the main line. This type of track layout differs from a passing loop in that the pocket track is usually located between two main lines, rather than off to the side.[1][2][3]

Pocket tracks also allow for the short-lining of trains, truncating services at an intermediate station to control train frequency.[4] They are also used at terminal stations to allow for the construction of future extension of a rail track without disrupting existing service.[5]


  1. ^ Railway Technical Web Pages, UK. "Glossary: Centre Siding." Archived 2014-10-07 at the Wayback Machine. Updated 2011-08-29.
  2. ^ Railway Technical Web Pages, UK. "US-UK Railway Terminology." Archived 2010-11-28 at the Wayback Machine. Updated 2011-08-29.
  3. ^ TriMet MAX (Metropolitan Area Express), Portland, Oregon."Types of track layouts." Max FAQs. 2010-12-17.
  4. ^ "Pocket Tracks" (PDF). Metro 2025: Strategic Plan, 2013-2025 (Report). Washington Metropolitan Area Transit Authority. p. 67. Retrieved August 8, 2016. 
  5. ^ "Northgate Station" (PDF). Sound Transit. July 2012. Archived from the original (PDF) on October 2, 2015. Retrieved August 8, 2016. 


None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license