Renewed efforts are under way for the reopening an 18-mile stretch of railway between Bedford and Northampton.
Campaigners say the line, which was closed around 40 years ago, is needed now more than ever.
The recent shutdown of parts of the West Coast mainline for upgrading has prompted fresh calls for the reopening.
Bedfordshire Railway and Transport Association says the government should include the link as part of the West Coast Mainline infrastructure project.
In the past independent reports have stated using the old link between Northampton and London, via Bedford and Luton, is technically feasible using what is left of the old line beds and tracks.
Campaigners say they have support from Northampton Borough Council and local politicians but much more is needed from local people and the business community.