Work to figure out whether a new Anfield train station can be built is set to start soon.
Pressure to open a station has existed for years but recent Liverpool FC plans to expand its home ground further has increased calls for better public transport around the stadium.
The closest stations to the ground are Bank Hall and Kirkdale - but both are around a 30 minute walk from the stadium.
Metro mayor Steve Rotheram told the ECHO in October that the combined authority would start work in the coming months to establish how the line could be reopened as well as the costs of doing so.
And speaking to members of the council's environment and climate change select committee this week, councillor Liam Robinson said those studies had now been commissioned to figure out whether the Bootle Branch Line, the line a station would sit on, could be reopened to passenger traffic.
The line is currently only open to goods trains and is the main entry and exit point for the Port of Liverpool by rail.
Councillor Robinson, who oversees transport for the city region, said that combined with costs of the development posed challenges for bringing back passenger services.
He said: "The feasibility work has now been commissioned.
"What makes it more difficult is that is the main rail route in and out of the Port of Liverpool for rail freight.
"Mixing passenger and freight traffic can prove difficult - but that does not mean it can not be done.
"You would probably need to electrify that line and we would then look at what stations there would need to be."
Tuebrook and Stoneybrook councillor Joe Dunne said the potential expansion of Anfield increased the urgency of a new station.
Nick covers local government and politics for the ECHO, focusing on Liverpool City Council and the city region.
Among other subjects he covers planning, housing, education, deprivation and transport in his role as local democracy reporter.
Here are more of his stories, and here is all of the ECHO's politics coverage.
Email him on [email protected]
Keep up to date with the latest breaking news here
Councillor Dunne said: "Is there a limit on where Anfield can expand at the moment because as it continues to expand there is going to be more congestion?
"There is a real demand for a rail stations in that area - even though I know it's a difficult issue."
The latest proposed expansion of Anfield would see 7,000 seats added to the stadium's Anfield Road end.