What we do not know about trains: What is line clearance?

What is line clearance? : Describes the distance between two load-bearing train tracks forming an railway line. The percentage of railroad tracks in the world uses 1.435mm (4½ inches) as standard line clearance. Line openings at different distances are called wide or narrow. The line is interrupted where two different lines of lines meet. For this reason, a number of lines were constructed in order to be able to switch between the different line widths in some transition zones.

The only type of rail without a line opening is the line structure called monorail. Some light-load electric railway lines may have a third or fourth line. This line located outside the main line is used for feeding the electricity grid.


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