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AN INTRODUCTION TO - page 43 / 72

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Simulation 3: (continuation from second condition)

Taking goods train into down loop Line and passing Rajdhani through main line.S1 & S39 are still in manual mode and showing danger aspect.S/A506 is showing clear aspect. The main signal button of S1 and route button DGL are pressed simultaneously. As a result, track after the overlap of S1 up to the overlap of S35 will be set. Points 103 & 104 will be set and locked. After few seconds Route indicator will be turned on and after few seconds S1 will show caution aspect. After this the goods train enter and following events take place.

Sr. No.

Sequence

Signal

Track

1)

Goods occupies C1T

train

S 1 caution S 39 danger

C1T occupied. Track after C1T up to overlap of S 35 set.

2)

Goods crosses S 1.

train

S1 - danger after

few route

seconds IT - Occupied indicator C1T - Blank

will be off. S 39 - danger S/A 506- clear S 35 - danger.

S 1 - danger After

few route

seconds Track up to the indicator overlap of S 1 is

3)

Train crosses the will turn off.

set.

overlap of S 1.

S 39 - danger

S/A 506 - clear S 35- danger.

S 1 - danger.

43

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