They allows trains to reach before time. Most BBS bound trains arrives early at VSKP. Also leaving PF1 will not block all the lines all cases.
If a train leaves from PF1 goes towards HWH, then admitting train from bza side to VSKP is very much possible.
Its a clear mismanagement at ECoR for many years. Yesterday Kirandul passenger detained at SCMN for 1 hr even though PFs are free at VSKP.
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to GPT 3rd line needs and also trains should start parallel like BZA to EE side. They too much load can be reduced as SCM to VZM it has 3 lines.

Being a vizagite pls explain me how can a train enter the pfs when the train leaves from PF 1. Day before yesterday I went to rly stn to pickup from Janmabhoomi at 1940. The ernakulam Patna express left at 1940 and janmabhoomi came in at 2000. When the train leaves from pf1 it cuts across all the lines which are incoming to other 7 pf. I think u are aware of it. I have explained him the same. As its dinner time the slot trains being long distance are put in pf1 which is being followed from many years. While pf 8 s reserved for GR pf 5 for korba exp at 2000. In the gap of that 30mins they need to allow BZA vskp passenger which is always late which goes to NSP/MTM and also rayagada Bza passenger. So literally there is no time left for letting 2035 arrival...
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before time. This happens on daily basis. The only case when janmabhoomi arrives DVD at 1900 it was given signal to arrive at 1930/40 on Pf2 the gap widens between 2000/30 to let this train in before time.

i can explain, when a train leaving PF1 and take opposite (wrong ) track then train from MAS side can enter into PF. Also if train passed outer then by the time it enters into PF , PF1 train can leave. I have seen it many times. Its all depends on controllers that time.
Also there is no need of allowing passing trains via PF1, its complete mismanagement. PF8 gets almost same facilities as PF1. Originating and destination trains can use PF1,2. Later they can be pulled upto Jnanapuram side and then they can be shunted towards coaching complex when train leave from PF5 or 6. Its very easy to maintain trains at VSKP which is having 8 PF. Also adding...
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3rd line from 3-4 km will make wonder. Its is as Railways has land to add another 6 parallel tracks at VSKP.
Its all mismanagement by ECoR making a station like VSKP became a bottle neck for many. Until diversion started things happened fine. Later when some trains diverted back, this all issue started of mismanagement.
They just want to prove VSKP is over crowded and trains has to divert. Their main target is VSKP bound trains only, so that people think that diversion is better. Many people tweeting the same with railway ministry. Any ways lets see how many months still it will continue.