signals.....before the train reach the outer...the signal given in the above scenario will be amber and not green thus bringing his speed to a few kms per hour then at the outer he is directed to other tracks...
if the train is to be stopped at the loop line which is towards the left then the outer will signal amber as well as the signals will be on indicating that the train is going to the left.
this is my inference...pls correct meif i am wrong or add any info if i missed...
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out anything

there are two signals to be considered here, one is home and the other is proceed signal preceeding the home signal..
PROCEED signal is approximately a km or more from the home signal and has four color light display, if this is green then home may be at yellow or green indicating stop on mainline or no stop.
If Proceed signal is at double yellow aspect then next signal(home) would be indicating a platform with yellow aspect and white colored lights pointing towards a loop.
If...
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Proceed is at single yellow then homw would be at red.
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Home signal is identified with a three color light signal and arms extending above it towards sides of loops. If this is at:
Green-No stop
Yellow- ML stop
Yellow with white lights pointing in one direction- divert to loop/Platform.
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However the aspect of home can be guessed by sighting of Proceed signal.