Total 6 pitlines available at Vasco and 2 or 3 may be occupied by freights so it leaves 3 or 4 lines for trains. No problem of space there is plenty infact much more than Madgaon.
Port may provide employment but it does not provide rail connectivity to passengers. Vasco is Goa's largest city and highest populated too.
Consider how VSKP people feel bad when trains bypass it same feeling here we just need one daily train to Mumbai and the biweekly Goa SK. MAO ERS and MAQ SF won't require a...
more... reversal if not at Madgaon the Vasco Mumbai new train may reverse at Majorda and Goa SK at Madgaon.