1) There was a Loco Reversal problem at Howrah. It reduced Journey time a lot after diversion. Earlier the bypass line didnot existed.
2)21 Platforms . 14 in sealdah North, 7 in Sealdah South
3) Platforms 1-8 are used for Local trains only in various routes like Sealdah Main, Sealdah Dankuni so those platforms can haul only 12 coach EMUs. Platforms 9,10 can hold 18 coach LHB or ICF train whereas 11-14 can hold 24 LHB trains
4)...
more... Howrah , Sealdah are seperated by Hooghly River. As Kolkata is a port city constructing several Bridges will interrupt Ships which can cause downfall in Economy . But Connecting Howrah & Sealdah via Metro is in Progress.
5) Vande Bharat depot for Sealdah is under construction, Shatabdi , JS didnot start from Sealdah as Sealdah is famous for Overnight trains Mainly
6) The routes of Sealdah Division are not congested with freight traffic or Passenger traffic except Local trains . That's why Double line is enough for handling that traffic but Mumbai is different . I may not know the actual reason but any Kolkata based RF knows it better than me
Hope it helps you
please wait...Translate to English1) There was some messed up train thing happening in Howrah. It made trips shorter after they changed routes. Didn't have a different path before.
2) There are like 21 spots for trains. 14 up in Sealdah North and 7 in Sealdah South.
3) Spots 1-8 are only for the shorter rides like Sealdah Main or Sealdah Dankuni, so only 12 coach trains can go there. Spots 9 and 10 can fit 18 coaches, while 11-14 can hold 24.
4) Howrah and Sealdah are split by a crazy river. Since Kolkata's a big port, building more bridges could mess up ship traffic and hurt the economy. They're working on linking Howrah and Sealdah with the subway, though.
5) Building a spot for Vande Bharat trains in Sealdah, but fancy trains like Shatabdi and JS don't start there because it's known for overnight trains mostly.
6) The train routes in Sealdah Division aren't too packed with cargo or passengers, except for the local ones. That's why they think double tracks are enough to handle the traffic. Seems like Mumbai's a whole other story. I ain't sure why, but any train buff in Kolkata would probably know better than me. Hope this is helpful for you.