1. Update link / relationship train : path
P.FBZ 2(K)
Matthias Lück
Frankfurt (M),

2. relationship

3. Train V0 Train V0 PR/PA 1 PR/PA 2 PR/PA 3 Contract: RU: TR 104_00
prolongation / reduction in foreign country for „second half of the year“ (1/2)
start station
Handover
point
Destination 2
Destination RU
IM1
IM2
IM2
Contract:
RU: TR 104_00
Train V0
Due to modification:
RU creates: TR 104_01
Train V0
Contract:
IM1 PA 7411_V0
PR/PA 1
PR/PA 2
IM1 existing PA
linked to new train-ID
PR/PA 3

4. prolongation / reduction in foreign country for second half of the year (1/2)
December
December
June
TR 104_00
original
situation
IM1 PA 7411_V0
IM2 PA 4711_V0
TR 104_00
after
modification
RU: new train-ID
IM 2: new path request
IM 1: original path
update link message
object info message?
IM1 PA 7411_V0
IM2 PA 4711_V0
TR 104_01
IM1 PA 7411_V0
IM2 PA 1111_V0

5. More then one PA-ID‘s possible mehrere PA-ID‘s sind möglich
uniqueness of ID‘s
one TR-ID
More then one PA-ID‘s possible
mehrere PA-ID‘s sind möglich
additional TR-ID‘s possible
 usage of „update link message“
in general
1:n TR – PA
1:n PA - TR