St Pancras station planning for more international passengers

St Pancras International station is looking at how it can expand its capacity to handle more passengers and is commissioning architects to provide suggestions about how to do that.
St Pancras station (c) ianVisits
HS1, the company that operates St Pancras station, says Eurostar aspires to grow its passenger throughput capacity from 1,800 passengers an hour to 2,700 passengers an hour by 2025.
To handle that growth, the station will need to be upgraded.
HS1 also notes that as the station and trac