Description
Technical Parameters
Main Turnout Components
| Category | Component | Function | Common Types/Materials |
|---|---|---|---|
| Switch Rails | Point Blade (Tongue Rail) | Diverts train direction | UIC 60, AREMA 115RE (High-carbon steel) |
| Stock Rail | Main rail guiding wheels | Same as mainline rails (e.g., UIC 60) | |
| Crossing | Frog (Crossing Nose) | Allows wheels to cross gaps | Manganese steel (13% Mn), Cast austenitic steel |
| Wing Rails | Guides wheels through frog | Heat-treated steel | |
| Fastenings | Switch Rods | Connects and moves point blades | Steel rods with insulated joints |
| Slide Chairs | Supports sliding switch rails | Lubricated polymer or steel base | |
| Controls | Point Machine | Electrically/hydraulically operates blades | Siemens S700K, Alstom Electraulic |
Turnout Types by Design
| Type | Diverging Angle | Max Speed (Main/Diverging) | Typical Use |
|---|---|---|---|
| Single Turnout | 1:9, 1:12, 1:18 | 160 km/h / 50 km/h | Mainline sidings |
| Double Slip | 1:8 | 40 km/h | Complex yards (e.g., stations) |
| Diamond Crossing | Fixed angles | 80 km/h | Track crossings |
| High-Speed Turnout | 1:30, 1:42 | 350 km/h / 160 km/h | HSR lines |
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