Turnout Types
| Classification | Type | Features | Applications |
|---|---|---|---|
| By Crossing | Fixed nose crossing | Requires wing rails | Conventional lines |
| Movable nose crossing | Seamless, allows high-speed straight | Beijing-Shanghai HSR | |
| By Layout | Single slip turnout | Most common (80%+) | Stations |
| Double crossover | Enables route transfer | Major hubs | |
| Special | Vibration-damping turnout | Embedded rubber pads (-12dB noise) | Urban metro |
Core Functions
- Track Switching: Diverts trains between routes (e.g., station entry/shunting)
- Speed Adaptation:
Movable-nose crossing allows ≥350km/h straight pass (CRTSⅢ type)
Fixed crossing limits diverging speed to ≤50km/h
- Safety Assurance: Guard rails prevent derailment (flange way clearance: 42±1mm)
Turnout component Application
Bilateral Railroad Steel Rail Turnout Switch, which dovetail with the turnout to the sides of the two stocks Road bifurcation. Three-way turnout as V-shaped, while convergence of three tracks, mechanically operated by two sets of sharp turn rut track. Double Slip Switches like X-shaped, in fact, equivalent to four single turnout and a diamond-shaped cross combinations.
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