So at 200km/h, does that allow for any significant distance being run at that speed? Or will the line mostly be 160km running in practice?I have done a quick review of this alignment. The new alignment curve at Colne bridge just east of Huddersfield has a curve radius of 1.05km by my estimate, which will just about allow 160km/h. The curve at Ravensthorpe is excellently aligned with a curve radius of 1.60km, which will allow 200km/h.
The curve at colne bridge is precisely where I designed a new alignment about 10 years ago in google earth. I never thought of doing a wider curve and new alignment at Ravenshorpe though, I think that's really neat.
It also leaves the TPE nicely segregated so that reinstatement of the Mirfield - Bradford line via Cleckheaton would pose no significant headaches (assuming the single estate of new house can be bulldozed but thats another matter).