Spring switch
A turnout held in one position by a spring so that facing point traffic always takes the same route but trailing point traffic can run through the turnout from either track.
Spur or spur track ...
Spring switch
Standard track switch equipped with a spring mechanism that automatically returns the switch points to a normal position after they have been displaced by the passage of cars in a trailing point movement.
Spring Switch
A switch equipped with a spring mechanism arranged to restore the switch points to normal position after having been trailed through.
Spur Track ...
Spring Switch A switch equipped with a spring mechanism to restore the switch points to original position after having been trailed through.
Facing Point Lock A locking device which automatically locks the switch points of a spring switch in normal position. Fairlie Double ended Locomotive with a single central cab, Designed by Robert Francis Fairlie. Always running cab forward.
In the case of the Gilman Sub, the siding at Thawville has spring switches at either end. A train pulling out of the siding does not have to operate the hand throw switches there when leaving; they can just proceed on through.
Alternatively the railroad may decide to have the spring switches lined for separate tracks instead, thereby effectively creating a short section of double track: ...
However, to stay closer to hobby standards, I will call this critter, which is not quite a turnout, a TURNIP. The turnip functions like a spring switch -oops- I mean a spring turnout, but there are no moving parts.
 See also: Switch, Track, Engine, Locomotive, Station
  
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