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Chapter 10. openETCS Model
Reverse Movement Protection
Activates the emergency brake system in the case that the
train moves in the reverse direction. See Figure 10.15.
Since different telegram types can be received in Staff Responsible, all of them must be treated
in the corresponding sub-function “Telegram Evaluation in Staff Responsible”. The evaluation
of MAs is modelled analogously to the Unfitted Mode in Subsection 10.2.3 and is only needed
for a possible transition to Full Supervision.
Current Train Position
double
double
Start Position SR
bool
Store position of train during mode
activation.
SR Entered
AllowedDistanceInSR
double
double
+
double
Absolut Distance Permitted in SR
Start Position SR
Calculate absolute distance (for odometer
values) until SR mode is allowed by using
national value.
AllowedDistanceInSR
double
>=
double
0.0
(CONST)
Check if allowed distance in SR
is infinite (< 0).
bool
Check if absolute distance allowed in SR is overrun.
Current Train Position double
double Absolut Distance Permitted in SR
>
&
bool
Allowed Distance in SR overrun
bool
Figure 10.12.: Distance supervision in Staff Responsible as gSubFunctionBlock graph
10.2.5. Full Supervision Mode
In Full Supervision, the EVC completely supervises the train movement. To ensure that the
train only enters allowed areas of the track, Moving Authorities (MA) [89, pp. 35-47] are used.
It is ensured that the train never overpasses the end of a MA without a new valid one has
been received before. In general, this procedure is done to provide an automatic spacing of
trains [67, ch. 3]. The model of the main functionality is sketched in Figure 10.16.
In comparison to Staff Responsible, Full Supervision mainly adds the functionality for
automatic train spacing. This is modelled in the “Dynamic Speed Profile Supervision” in
Figure 10.17.
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