Editing Railroad switch (section)

=== Interlaced turnout ===
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 | header    = [[Chicago Transit Authority]] [[Signalling control|switch tower]] 18 interlaced turnout
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 | footer    = Interlaced turnouts on the elevated [[Chicago "L"]] north and southbound [[Purple Line (CTA)|Purple]] and [[Brown Line (CTA)|Brown]] lines intersecting with east and westbound [[Pink Line (CTA)|Pink]] and [[Green Line (CTA)|Green]] lines and the looping [[Orange Line (CTA)|Orange line]] above the [[Wells Street (Chicago)|Wells]] and [[Lake Street (Chicago)|Lake street]] [[intersection (road)|intersection]] in [[The Loop (CTA)|The Loop]].
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 | image1    = Tower18NorthboundWellsPinkLine.jpg
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 | image2    = CTA loop junction.jpg
 | width2    = 200
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An ''interlaced turnout'' is a method of splitting a track into three or more divergent paths. It is an arrangement of two standard turnouts, usually one left- and one right-handed, in an "interlaced" fashion. The points of the second turnout are positioned between the points and the frog of the first turnout. In common with other forms of three way turnouts an additional frog is required. Due to the inherent complexity of the arrangement, interlaced turnouts are normally only used in locations where space is exceptionally tight, such as station throats or industrial areas within large cities.{{Citation needed|date=April 2025}}

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