It is a crossing that is formed when two tracks cross each other at an angle less than 90 degree and the arrangement forms a shape of a diamond.
It is a double crossing or double slip. It is the arrangement of the pairs of switches, acute crossing, obtuse crossing, check rails in a manner to form a shape of a scissor. This type of crossing is mostly used at goods yard.
Acute angle crossing is formed when left hand rail of one track crosses right hand rail of another track at an acute angle or vice versa. This type of crossing consists of a pair of wing rails, a pair of check rail and a splice rail. This crossing is widely used. This is also called V-crossing or frog.
Obtuse crossing is formed when left hand rail of one track crosses right hand rail of another track at an obtuse angle or vice versa. This type of crossing consists mainly of two acute and two obtuse angle crossings.
Special purpose tracks and sleepers are manufacture for maintenance yards.
A buffer stop or bumper, bumping post is a device to prevent railway vehicles from going past the end of a physical section of track.
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