kenada_blue
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Merseyrail's lack of capacity is a problem, but it's only London where you get tube style capacity and frequency. A new station would mean you could filter Sandhills for people travelling north on the Southport/Kirkby/Ormskirk lines and Vauxhall for people heading to the city centre then that would relieve much of the congestion.
Sandhills isn't really fit for purpose either and is still a trek from the ground, particularly if you're heading to town anyway. A new station could be better designed to manage crowds.
They won't build a "new" station at a new location. They'll repurpose old ones or extend current ones whether it's the Baltic one on the old St James station, Headbolt Lane, or extending Sandhills.
Either way, they can only improve what's already there and the issue is they're not improving the main one at Sandhills - but can pump £100mill into the Baltic