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4. Simulations

The four conditions taken up for simulation are as follows:

SIMULATION-1: E M U through up main line. All signals working in Automatic mode.

Sr. No.

Sequence

  • 1)

    When train has not occupied the track and the whole path (up track is set)

  • 2)

    Train arrives and occupies

A 509 T.

  • 3)

    Train crosses S/A 507 and occupies A507 T.

  • 4)

    Train crosses the overlap of S/A 507 and occupies 502 T (arrives at pl. No. 2)

Signals

Track

S/A 507,S 12, &

A 509 T to

S/A 505 - clear

A 505 T set

S/A 507,S 12 & S/A 505 - clear S/A 507 - danger

S/A 507 danger

A 509 T occupied

A 509 T blank A 507 T occupied. Track up to A507 T set

  • 5)

    Train crosses S12 and occupies 12 T and 101 T.

  • 6)

    Train crosses the overlap of S12 and occupies 12 A

7)

T Train occupies A505T

8)

Train crosses the overlap of S/A 505

S-12 danger S/A -507 danger S-12 danger, S/A 507 caution

S12 danger , S/A 507 caution

S/A 505 – danger (red aspect) S-12 caution, S/A 507 attention

Track up to 101 T set.12 AT blank Track up to 101 T set.12AT occupied A507 T – 101T set, 12 AT blank, A505 T occupied. All the track from S/A 509T – S/A 505 T set

39

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