The selection of turnout type is closely related to the station design. Improper selection of turnout number will bring a very large amount of work to station construction, which should be considered in the early stage of line design. Turnout is a line connection device that enables locomotives and vehicles to transfer from one track to another, and is usually laid in large quantities in stations and marshalling stations.
Extended data:
1. One-way turnout has main line and lateral line, and the turnout is opened by the action of switch rail. The openings of side lines and main lines are controlled by conveyors.
2. Three forks are equivalent to two groups of single forks with different sides connected in turn, but their length is much shorter than the sum of the two groups of single forks. Therefore, it is often used in railway ferry bridge approach, peak traffic marshalling yard and sections with narrow terrain and special needs. The third branch is composed of a group of turnouts, and its operating conditions are poor. If it is not difficult, it should be adopted.