https://www.youtube.com/watch?v=7KvklU1Ny7g
Grand_Central_Terminal keeps evolving through the decades.
https://en.wikipedia.org/wiki/Grand_Central_Terminal#Innovations
https://www.grandcentralterminal.com
It was already the main transportation hub for NYC.
https://en.wikipedia.org/wiki/Grand_Central-42nd_Street_station
https://en.wikipedia.org/wiki/Grand_Central-42nd_Street_station#Renovations
Soon it just might become the biggest transportation hive in the Tri-State Area.
https://en.wikipedia.org/wiki/Grand_Central_LIRR_terminal
https://en.wikipedia.org/wiki/East_Side_Access
For now, Pennsylvania_Station_(New_York_City) is more busy.
https://en.wikipedia.org/wiki/Pennsylvania_Station_(New_York_City)#Expansion
https://en.wikipedia.org/wiki/Pennsylvania_Station_(New_York_City)#Proposed_Metro-North_service
https://en.wikipedia.org/wiki/Pennsylvania_Station_(New_York_City)#Gateway_Program
