Northern Rail

[Merseyrail 507/508]

RE: Northern Rail
Hazel Grove-Buxton
Frodsham Junction-Runcorn via the Halton Curve
Chesterfield-Nottingham (not a case of banned but they're not cleared that way)
Bridlington-Scarborough (not banned as such, they can work through, but it requires agreement with Network Rail, who are usually not too happy if one makes it up there)

At one point 14x units were banned over Goole swing bridge (I think it was Goole anyway, definitely over one of the river bridges in that area) but that has been reversed.

Used to be banned Daisyfield Junction-Hellifield via Clitheroe but 142's can now go to Clitheroe without any issue and a fair few have made it up there, in fact on a quite regular basis. Some would say that is bad news, but it allows a lot more operational flexability at Manchester Victoria.