Research Article
Multiscenario-Based Train Headway Analysis under Virtual Coupling System
Table 1
Characteristics of CTCS levels.
| CTCS level | Blocking mode | Data transmission | Track clear detection |
| CTCS-0 | Fixed-block | Trackside devices | Track circuits | CTCS-1 | Quasimoving-block | Trackside devices | Track circuits | CTCS-2 | Quasimoving-block | Trackside devices | Track circuits | CTCS-3 | Quasimoving-block | GSM-R | Track circuits | CTCS-4 | Moving-block or virtual-block | GSM-R | RBC and onboard equipment |
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