You state in your story 'Why the SNP opposes EARL' (NCE 26 April) that 'a tunnel-less rail link would have a spur to Fife, but would not connect through to the west'. Why not?
I believe a surface rail link could run Edinburgh-South Gyle-Edinburgh Airport-Linlithgow and points west. This route would save two bridges over the river Almond; the rail tunnel under the main runway; one major junction, and about 75% of the land take.
The cost would be a cut and cover pedestrian tunnel with moving pavement and bypassing Edinburgh business park station, which is less than 1km from South Gyle station.
D Ross Carruthers firstname.lastname@example.org