Railway Track Crossings: Types, Components, and Applications
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Railway Track Crossings: Name, Schema Usage, and Design
Crossings are essential devices that ensure the continuity of connections via different paths and can provide maximum security. They consist of combinations of two devices:
- Bypass: Allows the separation of a railroad into two or more tracks.
- Journey: Allows the intersection of two roads.
Components of Diversions and Crossings
Diversions and crossings are formed from three elements:
- Change: The contra-needle assembly. The needle is the mobile part, and the immobile part is the contra-needle. The end of the needle tip, which is not machined, connects to the union rails and is called the heel. The contra-needle is a normal lane. The needle has to transition from one lane to become normal to an item that occupies virtually nothing. Needles are operated manually, mechanically, hydraulically, or electronically.
- Mating: It consists of wing rails, the heart, and rails. Here, the diversion is characterized by the angle. Singles and doubles are possible.
- The recording is made by means of cross braces that are available, and the longest section of sleepers. Dual role: as sleepers to transmit efforts. The truss strengthens the device itself.
Two-Way Intersection Crossings
Types of two-way intersection crossings:
- T. cross: Two-way straight and equal line-width.
- T. straight
- T. oblique: Same angle.
- T. with simple union.
- T. with double bond.
Other Types of Crossings
- Escape: For double-track lines, which is usually necessary to pass the rail traffic from one track to another.
- Bundles via: Their mission is to channel traffic from public roads into the areas occupied by the different services that comprise the Ferroven operational centers.
- Diagonal: A track that passes through a beam, forming acute angles with its different ways.
- Plates or swing bridges: Orient the material in the desired direction by rotating the line to connect with those around.
- Triangles way: Similar to the bridge, rotating, but allows a 180-degree turn for a trainload instead of vehicles.
- Molehills: Fixed operational flow that can stop if there is an incident.
- Scales: Special lanes placed for load control.
- Chocks security: A device anchored to the rail. They are fixed wheels.