Pocket track
A pocket track on the eBART line
CityLynx Gold Line Birney car laying over at CTC-Arena, viewed from the Lynx light rail station, 2016
A pocket track, tail track, or reversing siding (UK: centre siding , turnback 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-turning 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]
References[]
- ^ Railway Technical Web Pages, UK. "Glossary: Centre Siding." Archived 2014-10-07 at the Wayback Machine Updated 2011-08-29.
- ^ Railway Technical Web Pages, UK. "US-UK Railway Terminology." Archived 2010-11-28 at the Wayback Machine Updated 2011-08-29.
- ^ TriMet MAX (Metropolitan Area Express), Portland, Oregon."Types of track layouts." Max FAQs. 2010-12-17.
- ^ "Pocket Tracks" (PDF). Metro 2025: Strategic Plan, 2013-2025 (Report). Washington Metropolitan Area Transit Authority. p. 67. Retrieved August 8, 2016.
- ^ "Northgate Station" (PDF). Sound Transit. July 2012. Archived from the original (PDF) on October 2, 2015. Retrieved August 8, 2016.
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- Rail transport stubs
- Railway sidings