Train Protection
Forced braking
What triggers a forced braking in Create Managed Railways, how hard it brakes, and how the train gets going again.
A forced braking stops the train whatever the driver or the schedule wants. It brakes very hard and holds the train at a stand until it is released.
Who brakes, and how to release it
| Triggered by | Reason | Released by |
|---|---|---|
| PZB 2000 Hz | Signal at stop passed | Frei at a stand. A train without a driver is released by itself a few seconds after it stands. |
| PZB 1000 Hz | Wachsam not pressed within 4 s | Frei at a stand |
| PZB 1000 / 500 Hz | Too fast for the supervision | Frei at a stand |
| Sifa | Not acknowledged | Acknowledging the vigilance device |
| ETCS | More than 10 km/h above the permitted speed | Ends by itself once the train stands |
| ETCS trip | End of the movement authority passed | Only an order over the train radio (mode PT, then SR) |
| Emergency call | Emergency call over the train radio | Ends by itself after 20 seconds |
The reason of a PZB braking is shown in the PZB display (K); ETCS reasons appear on the DMI.
How it brakes
- The brake acts inside the train's own movement, before the train moves. Neither the controls nor the schedule can push the train on: it really stands, it does not creep along.
- It also stops the creep speed that Create gives a scheduled train close to a stop.
- It brakes far harder than a real train, almost like a wall: from 144 km/h the train stands after about 14 blocks.
The service brake of ETCS is something different: it only brings the train back down to the permitted speed and does
not hold it.
Brake systems with real braking distances, brake positions and brake tests are planned, see
Planned.